Re: [ubuntu-studio-users] Meltdown – Spectre

[Pablo Fernandez]

El sáb., 13 ene. 2018 13:58, Thomas Pfundt 
escribió:

> Hi Ralf,
>
> I can't help with this, as I have an AMD system, but I've read that
> performance can be reduced by up to 50% when using certain SSDs somewhere
> (in Windows, I think).
>
> However, this site doesn't list your Celeron G as vulnerable:
> https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00088&languageid=en-fr
> Do you even need to concern with the patch and performance at this point?
>
> I would also be interested in any hard info on these issues though, as
> they are still quite obscure. Are the Spectre patches added or do I have to
> act some way? I read that Firefox already patched some vulnerabilities, are
> those already in the repositories?
>

Yes, updated firefox is ready since a few days ago. I am following the
issue here:

https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SpectreAndMeltdown

>
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Re: [ubuntu-studio-users] Mousepointer disappaers ...

[Pablo Fernandez]

Maybe this will help?

https://forum.xfce.org/viewtopic.php?id=10695


El 10 abr. 2017 9:48 a. m., "Hans Schneidhofer" 
escribió:

> hi list,
>
> Ubuntustudio 16.04.2 LTS :
>
> it might be courios, but every time I make an update, the same behavior
> of mousepointer appaers :
>
> after screensaver was activated, the mousepointer cannot be seen, only
> that fields, that was activated through the mousepointer. The pointer
> istself disappaers.
>
> Thats like a flying like a blind guy. For an action-game this would be
> very nice: lets look, which field would be the next activated ?
>
> But it is not really fine to work with such a crazy thing.
> The only thing, which helps till now, is :
> logout and login again. But it helps only till the next sreensaver was
> active.
>
> I thought this error had already been fixed long ago?
> Has anyone an idea, how to solve this ?
>
> Thanks in advance
> bye hans
>
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Re: [ubuntu-studio-users] ubuntu-studio-users Digest, Vol 108, Issue 7

[Pablo Fernández]

El 24/04/16 a las 21:39, Kaj Ailomaa escribió:

On Sun, Apr 24, 2016, at 08:50 PM, Davide Costella wrote:

Hello,
tried to follow Kaj's suggestion, but it doesn't work in my case ...
I've also tried to "manually" kill jack (using terminal) as Jean
suggested;
in this case the audio of other app start working again but if open
aHydrogen a second time (starting Qjackctl first) hydrogen has no sound
even if qjackclt told me server is running.
What's wrong?
Sorry, I know my questions may sound too noobish for you, but I'm quite
new
in ubuntu-studio.

Thanks again for suggestions (and patience) and further help in advance

Regards

PS: Maybe the problem is also I've not yet realized how server audio
works
on linux (I come from windows and this kind of things are a lot simple
from
a user point of view) is there any sort of step by step guide to better
understand this topic, maybe there is no issue in my case and I'm messing
around everithing ... :-)


I'm assuming you are using 16.04?

As background info - both the desktop audio server (pulseaudio) and the
pro audio server (jack) will use the ALSA backend by default (jack may
use other backends as well, but the default is ALSA. Firewire devices
may also use the "firewire", or "ffado" backend.).
ALSA contains contains among other things the drivers to your audio
device. Normally, Pulseaudio will have a hold of your audio device
through ALSA. That is the default, right? But, when starting jack with
the ALSA drivers, and selecting the same audio device as selected by
pulseaudio, jack will take over the ALSA backend part from pulseaudio.
This is why pulseaudio becomes quiet, and you need to make pulseaudio
connect to jack (which it can, thanks to the package
pulseaudio-module-jack). So, that is what was discussed before.

In your case, my hypothesis is that the problem may be that you are not
selecting the correct audio device for jack (happens if you have more
than one, and it is a common problem). So, after having done a reboot
(just to make sure), start qjackctl. Choose the device you want to use
in "Setup" -> "Interface", and start jack using the "Start" button.
If all went well, jack will have started. So, now start hydrogen. If you
did not change any settings for Hydrogen, it should automatically
connect to jack and you should hear sound, and you can double check by
looking in qjackctl -> "Connect" -> "Audio". If Hydrogen is not visible
there, most probably you changed Hydrogens settings. In the menu, go
into "Tools" -> "Preferences" -> "Audio System", and select "auto" in
the upmost left drop-down menu, then restart Hydrogen, and it should
work.

If you are having any more problems, let us know at which step, and also
which Ubuntu Studio release you are on, and we'll try again :).


Also, to kill jack don't use just "killall -9 jackd" but
do a full "killall -9 jackd jackdbus qjackctl".

I have an alias in my .bashrc file that reads
kj=""killall -9 jackd jackdbus qjackctl"
so I just type kj in the terminal when things get a bit weird, jack wise.

This seems to be because, sometimes, having jackd and jackdbus running 
causes

this sort of confusions between jack-aware applications.
 It is not very much of a problem, especially when you get used to 
always start

jack manually via qjackctl, and don't let any jack-aware program to start
jack behind the scenes.

Of course, as Kaj already explained, the most important thing is making sure
jack is started with the right audio interface.

Hope this helps,
Pablo

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Re: [ubuntu-studio-users] using apogee duet audio interface

[Pablo Fernandez]

>something i've noticed in ardour, is if i create a mono track, i barely
get a signal, if a >create a stereo track, i get so much signal i can't
control it. i can run the volume on the >track all the way to zero and it
still clips, so any ideas?

If you create a mono track, the default connection for the input is "In 1"
("system: capture_1" in jack terminology). If you create a stereo track,
the default inputs are In1/In2 for each channel, so I suspect that you need
a mono track with "In2" as the input (You can change this in the Mixer
Window). AND decrease the level in alsamixer if it clips.

The track fader doesn't control the input signal level. You have to adapt
the signal before it reaches ardour (via hardware and/or alsamixer).
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Re: [ubuntu-studio-users] Update question, untrusted packages

[Pablo Fernandez]

Hi Pete, Ralf, ubuntu users! My English is not very good but some comments
follow at the bottom

On Wed, Aug 21, 2013 at 4:41 PM, Pete Wright  wrote:

> Thanks, Ralf
> The list is reproduced below. BTW, how do I "uncomment" if I choose to?
> I can't think of anything I changed since the last update, so I am still
> confused about getting this warning now.
> Pete
> pete@pete-GM5457E:~$ cat /etc/apt/sources.list
> # deb cdrom:[Ubuntu-Studio 12.10 _Quantal Quetzal_ - Release i386
> (20121017.1)]/ quantal main multiverse restricted universe
>
> # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
> # newer versions of the distribution.
> deb http://ca.archive.ubuntu.com/ubuntu/ raring main restricted
> deb-src http://ca.archive.ubuntu.com/ubuntu/ raring main restricted
>
> ## Major bug fix updates produced after the final release of the
> ## distribution.
> deb http://ca.archive.ubuntu.com/ubuntu/ raring-updates main restricted
> deb-src http://ca.archive.ubuntu.com/ubuntu/ raring-updates main
> restricted
>
> ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
> ## team. Also, please note that software in universe WILL NOT receive any
> ## review or updates from the Ubuntu security team.
> deb http://ca.archive.ubuntu.com/ubuntu/ raring universe
> deb-src http://ca.archive.ubuntu.com/ubuntu/ raring universe
> deb http://ca.archive.ubuntu.com/ubuntu/ raring-updates universe
> deb-src http://ca.archive.ubuntu.com/ubuntu/ raring-updates universe
>
> ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the
> Ubuntu
> ## team, and may not be under a free licence. Please satisfy yourself as
> to
> ## your rights to use the software. Also, please note that software in
> ## multiverse WILL NOT receive any review or updates from the Ubuntu
> ## security team.
> deb http://ca.archive.ubuntu.com/ubuntu/ raring multiverse
> deb-src http://ca.archive.ubuntu.com/ubuntu/ raring multiverse
> deb http://ca.archive.ubuntu.com/ubuntu/ raring-updates multiverse
> deb-src http://ca.archive.ubuntu.com/ubuntu/ raring-updates multiverse
>
> ## N.B. software from this repository may not have been tested as
> ## extensively as that contained in the main release, although it includes
> ## newer versions of some applications which may provide useful features.
> ## Also, please note that software in backports WILL NOT receive any review
> ## or updates from the Ubuntu security team.
> deb http://ca.archive.ubuntu.com/ubuntu/ raring-backports main restricted
> universe multiverse
> deb-src http://ca.archive.ubuntu.com/ubuntu/ raring-backports main
> restricted universe multiverse
>
> deb http://security.ubuntu.com/ubuntu raring-security main restricted
> deb-src http://security.ubuntu.com/ubuntu raring-security main restricted
> deb http://security.ubuntu.com/ubuntu raring-security universe
> deb-src http://security.ubuntu.com/ubuntu raring-security universe
> deb http://security.ubuntu.com/ubuntu raring-security multiverse
> deb-src http://security.ubuntu.com/ubuntu raring-security multiverse
>
> ## Uncomment the following two lines to add software from Canonical's
> ## 'partner' repository.
> ## This software is not part of Ubuntu, but is offered by Canonical and the
> ## respective vendors as a service to Ubuntu users.
> deb http://archive.canonical.com/ubuntu quantal partner
> # deb-src http://archive.canonical.com/ubuntu quantal partner
>
> ## Uncomment the following two lines to add software from Ubuntu's
> ## 'extras' repository.
> ## This software is not part of Ubuntu, but is offered by third-party
> ## developers who want to ship their latest software.
> deb http://extras.ubuntu.com/ubuntu quantal main
> # deb-src http://extras.ubuntu.com/ubuntu quantal main
> deb http://archive.ubuntu.com/ubuntu raring main
> # deb-src http://archive.ubuntu.com/ubuntu raring main
> pete@pete-GM5457E:~$
>
>
>
> On Tue, Aug 20, 2013 at 5:00 PM, Ralf Mardorf 
> wrote:
>
>>
>> On Tue, 2013-08-20 at 15:45 -0700, Pete Wright wrote:
>> > I didn't think I had any unsupported ppa
>>
>> cat /etc/apt/sources.list
>>
>> run in a terminal emulation will show if you're using a PPA or not.
>>
>>

PPA repositories' lines are not in /etc/apt/sources.list. They are, as
plain text files, ending with ".list"  under the /etc/apt/sources.list.d/
directory.

A more appropiate command to see the repos is:

cat /etc/apt/sources.list  /etc/apt/sources.list.d/*

Or, to print just the active repos (all of them), filter out the lines that
are commented out:

cat /etc/apt/sources.list  /etc/apt/sources.list.d/* | grep -v "#"

You can comment out lines if you edit these files but I suggest you should
use Software Center or Synaptic to enable / disable repos.

In my experience, multiverse and universe are trustworthy repos and most
PPA's too. That said, I disable PPA's after installing some packages that I
want to have more up to date.
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Re: How to deal with the generic kernel?

[Pablo Fernandez]

El 15/06/2013 20:26, "Alf Haakon Lund"  escribió:
>
> On 02. juni 2013 16:17, Alf Haakon Lund wrote:
>>
>> I'm running Ubuntu Studio 12.10, 32-bit, on a Toshiba Sattelite p850.
>>
>> Recently jack stopped working. As this happened right after an update, I
>> was able to guess that the latest kernel caused the issue. At next boot
>> I chose advanced features in the GRUB menu and so I noticed that
>> 3.5.0-33-generic was my default kernel. I chose 3.5.0-31-lowlatency
>> instead and JACK went back to work.
>>
>> I asked a question about this on the LAU mailing list and got an answer
>> that made it clear Ubuntu Studio doesn't use the generic kernel by
>> default. This prompted me to check out 13.04 through VirtualBox.
>>
>> Right: After the fresh install Synaptic says no generic kernels are
>> installed, but on it's first run Software Updater includes them anyway
>> in the security update section.
>>
>> So I have three main questions:
>>
>> - What could I have done to suddenly start using the generic instead of
>> the lowlatency kernel?
>>
>> - Why is Software Updater including them anyway?
>>
>> - What can I do to get permanently rid of this nuisance? I want to run
>> the lowlatency kernels and be done with it.
>>
>> Amongst the bunch of other questions that arose I'd like to mention just
>> a few:
>>
>> I uninstalled the generic kernel, but after rebooting and chosing GRUB's
>> default the info in system monitor still says 3.5.0-33-generic. I am
>> pretty sure I uninstalled while in 3.5.0-31-lowlatency so I should've
>> avoided the dilemma command "system: uninstall yourself!" How do I make
>> sure which kernel I'm actually running? And doesn't GRUB notice when
>> kernels are removed?
>>
>> OK, I'm thankful for any and all input and will happily file bug reports
>> in the proper places once someone properly helps point me to them ;-)
>>
>> Al F
>>
>
> Hello again,
>
> I need a small follow-up help on this subject:
>
> I threw out all generics from my system (at least I think I did), and
most of the old lowlatencys as well, so that I'm now left with
3.5.0-31-lowlatency and 3.5.0-33-lowlatency. That's what the advanced part
of GRUB tells me, anyway.
>
> Now the latest update wants to install "Header files related to Linux
kernel version 3.5.0", new install, 12.1 MB.
>
> To me this doesn't look like lowlatency, so I'm inclined to not install
it, but how can I know for sure?

"apt-get upgrade" will tell you, and the packages will be kept back. (To
install kernel packages from the terminal you would need "apt-get
dist-upgrade"). To be on the safe side,  you can "--just-print"

sudo apt-get upgrade --just-print
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Re: How to deal with the generic kernel?

[Pablo Fernandez]

I think the following workaround will prevent the installation of the
generic kernel:

Synaptic, Select (but don't mark) "linux-image-generic". Menu: Package ->
Lock version   (which also means "don't install" for non installed
packages, I guess).

I haven't tested this because I don't do automatic upgrades and so I am not
100% sure it will work.
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Re: Error I don't understand

[Pablo Fernandez]

On Fri, May 24, 2013 at 9:10 PM, Pete Wright  wrote:

> The error says "Check Internet Connection." Clicking details give the
> results pasted below.
> All my applications that use the internet are working just fine, including
> Firefox.
> I am running 13.04.
> Why should my system be looking for 12.10 CD-ROMs?
> Running Synaptic comes up with nothing needing update.
> Is the system trying to look at something it thinks is installed locally?
> I have been ignoring this for some time.
> Any enlightenment available?
> Thanks
> Pete
>


Hi Pete!

You probably have CDROM enabled as a software repository
In Synaptic, check Settings -> Repositories:  "Other software" tab. Disable
CDROM and Reload

Cheers! Pablo
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Re: Jack & Ardour updates

[Pablo Fernandez]

>
> leo  hat am 9. Mai 2013 um 19:47 geschrieben:
>>
>> I just received this email today. Last night I already performed the
>> updates via Tim Krone's suggested link to
https://launchpad.net/~kxstudio-team/+archive/ppa
>>
>> The result was I now have a choice of loading (from the menu popdown at
the desktop upper left icon)
>> my usual Ardour version 2.8.14, or Ardour 3.1.
>>
>> My old Jack 0.3.9 is now only version 0.3.10 for some reason I don't
understand.

qjackctl, aka Jack Control, is not the jack audio system, but a convenient
GUI that helps configure and control
the jack audio system or server, which runs in the background. jackd
--version will tell you the jack version.

>>
>> I did the updates and added the PPAto my repositories but there was a
note in the terminal and at the
>> website stating "Start jackd/jackdbus; then run 'pulse-jack' which will
enable pulse audio support."
>> When I entered "pulse-jack" in the terminal, it responded "sudo:
pulse-audio: command not found".
>>
>> I loaded Ardour 3 and was able to record my guitar on a fresh track
along with the visual active mixer volume
>> bar, and the track waveform showing, but the result was the same as when
I did the same routine in Ardour 2.8.14,
>> a scratchy sound from the "click" beats. Also, the message window for
Jack shows a scrolling repeating messages
>> of XRUNS Callback, numbers 45, 46they change. Changing the Jack
setup buffers, latency, etc, doesn't help that. Then, of course, Ardour
>> crashes.
>>
>> Also, when I start Jack (before or after Ardour, doesn't matter) it adds
Jack source, and sink to the connections.

These ports are sort of  pulseaudio to jack bridges. Pulseaudio is the
general purpose audio system in ubuntustudio.

Something is wrong with your system.

What is the output of

ulimit -r -l

?
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Re: Jack & Ardour updates

[Pablo Fernandez]

El 09/05/2013 02:46, "leo"  escribió:
>
> I use Patchage as well as Jack because I get confused with the names of
interfaces, etc., used in jack setup and the connections diagram is easier
to see and understand in Patchage.

I like patchage too.

> True, I noticed the order of devices do indeed change after reboot.

Follow Ralf's advice to give the cards fixed numbers in modprobe.conf.
Alternatively, you can avoid the problem by calling the card by name
instead of by number. You see the card name between square brackets when
you enter:

cat /proc/asound/cards

in a terminal. Then you can type:

hw:name

in the interface field of qjackctl, even if it is not an option in the list
you see there.

The above assumes that the device #0 of the Audiobox is duplex. If it had
separate devices for capture and playback, then you would need to fill the
'input device' and 'output device', rather than 'interface'. If in doubt,
show the terminal output of

arecord -l && aplay -l

And, additionally, I have tried loading Jack both before or after loading
Ardour.

When you write Jack you refer to qjackctl or 'Jack Control' gui. Jack is
the underlying audio system behind Ardour and many other 'jack-aware' apps.
Ardour itself will start the jack daemon if Ardour finds that it is not
running.

I use the connections diagrams of both Jack and Patchage to help me
understand how it all relates to the mixers edit windows. I am hoping I
will eventually get a grip on how to make all my connections thru the
Ardour mixers windows so I don't end up having to do the same with Jack.

Where you make the connections is a matter of convenience but you don't
need to make them twice.

>
> An update may help. I just don't know if Tim's advice would work with my
version of Ubuntu or break it

I don't think it will break it but it won't help automagically solve jack
configuration or card ordering issues. Solve those first, I suggest

>"...I personally would recommend the kxstudio repos in launchpad.
There you will get nearly newest packages.
>
> https://launchpad.net/~kxstudio-team/+archive/ppa
>
> Ardour is version 3.1 there and jack is version 1.9.9.5.
> They have packages for precise, quantal and raring.
>
> Cheers
> Tim..."
>
>
> 
> From: Ralf Mardorf 
> To: ubuntu-studio-users@lists.ubuntu.com
> Sent: Wednesday, May 8, 2013 6:00 PM
>
> Subject: Re: Jack & Ardour updates
>
> On Wed, 2013-05-08 at 16:32 -0700, leo wrote:
> > 2) Record guitar in Ardour also so I can hear my guitar, and the wav
> > track, and see the waveforms in the editor window simultaneously (=
> > last night I got it to work, but today not!!/same setup as last night)
> > =nightmare. :(
>
> Do you think an update will change your situation? I suspect a handling
> error. We need more information.
>
> Why are you using Jack, Patchage and Ardour, if you only want to record
> and play music with Ardour? For this setup, Ardour does store and
> restore all connections, you only need to start Jack and Ardour.
>
> If you're using the "Audiobox USB interface" and an audio device from
> your mobo should be enabled too, it might happen that after a reboot,
> the order of the audio devices does change.
>
> There are two ways to avoid this. You can disable your onboard device by
> the BIOS settings or you edit a /etc/modprobe.d/alsa-base.conf
>
> This example does show how to reserve hw:0 for a HDSP card and hw:1,
> hw:2 for 2 Envy24 cards:
>
> # ALSA module ordering
> options snd slots=snd_hdspm,snd_ice1712,snd_ice1712
>
>
>
>
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Re: Rosegarden end marker

[Pablo Fernández]

El 30/08/12 19:46, Doug Regehr escribió:

Hi,

I'm trying to compose a song with rosegarden, but the playback always 
stops after 104 measures.  It doesn't matter what the tempo is, 
whether I open an existing song or start from fresh.  I've tried 
version 11 (which is in the main ubuntu repo) and version 12.04 from 
kxstudio, and the behaviour is the same.  Has anyone else seen this 
behaviour?  (Does anyone else on this list use rosegarden?)  Am I 
doing something wrong?  Is there some sort of secret "end marker" that 
I need to move?



Try this:
Menu: Composition -> Change composition start and end

Cheers, Pablo

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Re: Hi there, I need help to configure Ubuntustudio on my machine

[Pablo Fernandez]

> [1] is no link anymore. The webpage doesn't exists!

:( I hope it is back soon.

>
> Anyway:
> /etc/asound.conf doesn't exists.
> I commented out the line in ~/.asoundrc and rebooted. Now Jack starts, but
> with the onboard-Soundcard. I plugged in my Headphones into the onboard
> card, but still have no sound!

Well, if/when jack is started, only "jackified" applications or "jack
clients" will make sound.

In other words, you have to make sure that you can connect the app's
audio outputs to the "system" playbacks. (See the connect window of
qjackctl. In this context, "system" means the audio card that jack is
using).

The default sound server in ubuntu(studio) is pulseaudio.
Banshee/rhytmhbox, flashplayer in firefox, etc, are not "jackified" by
default. To solve this problem you have either to jackify the apps,
use other apps or enable some kind of bridge between pulseaudio (or
alsa) and jack.

As a quick test you can use a jack-friendly audio player, for example,
aqualung. Aqualung will know if jack is active and you will see it in
the connections window.

For the pulseaudio to jack bridge, follow the instructions here:

https://help.ubuntu.com/community/UbuntuStudioPreparation#Pulse_Audio

If you still have no sound from your onboard card, check playback
levels in alsamixer.


> Some days ago I read a post in a board about enabling the onboard-soundcard
> in the BIOS - I never touched the BIOS, except for installing operating
> systems from a USB-Stick. Could it be that I have to enable the ESI in the
> BIOS? I don't think so, but maybe you know more...

No


> I got a new, really confusing "error".
> I played around with jack. I selected hw:1,0 as Input device (which is the
> ESI)

Well, sometimes the ESI is hw:1, sometimes is hw:0. You can give
consistent numbers to the audio cards in a configuration file,
/etc/modprobe.d/alsa-base.conf. This is explained in alsa-project
site, multiple audio cards. As you noted, the site is down so, for the
time being, you will have to check every time in qjackctl setup or
name the card by name instead of by number.

> and hw:1,1 as output (which is also the ESI).

The first number is the card (Karte) number, which can change between
reboots. The second number is the device number (Gerät). See aplay -l.

According to arecord -l && aplay -l, the ESI has two devices, both of
them are duplex (they can record and playback at the same time) and
the second one (number 1) is digital, IEC958. To access the analog
inputs and outputs, you should choose hw:x,0 as input and output
devices, or once for both in the interface field. (hw:Juli should
default to hw:x,0 where x is the card number for the ESI).


Jack is running, BUT
> - no sound

Try aqualung, see above.


> - Status output tells me:
>    XRUN callback (1).
>    XRUN callback (39 skipped)
>
> The last line about 20 times, one time with "(41 skipped)" and one time with
> "(40 skipped)", than I halted Jack.

xruns can be caused for many different reasons. By now, increase the
frames/periods value.


BTW, if you don't mind waiting for three weeks or so, I hope
ubuntustudio 12.04 will give you a much better first time experience.


Cheers, Pablo

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Re: Hi there, I need help to configure Ubuntustudio on my machine

[Pablo Fernandez]

I am confused. Those messages "unknown PCM default" / "unknown PC
Juli"... This looks like an alsa problem, i.e., at a lower level than
jack or pulseaudio.

I would try disabling .asoundrc files [1]. There might be two of them:

/etc/asound.conf  (probably not existent, but just in case)
~/.asoundrc

The second one, from your report:

# ALSA library configuration file
# Include settings that are under the control of asoundconf(1).
# (To disable these settings, comment out this line.)


So, what happens if you comment out the last line? (And then reboot,
or restart the user session)

[1] http://www.alsa-project.org/main/index.php/Asoundrc

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Re: Hi there, I need help to configure Ubuntustudio on my machine

[Pablo Fernandez]

El 08/04/2012 12:52, "Matthias Beyer"  escribió:
>
> Okay, I typed exactly what you told me:
>
> matthias@ustudio:~$ jackd -dalsa -dhw:Juli
>
> jackdmp 1.9.7
> Copyright 2001-2005 Paul Davis and others.
> Copyright 2004-2011 Grame.
> jackdmp comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> no message buffer overruns
> no message buffer overruns
> JACK server starting in realtime mode with priority 10
> Failed to connect to session bus for device reservation Unable to
autolaunch a dbus-daemon without a $DISPLAY for X11
>
> Failed to acquire device name : Audio0 error : Invalid argument
> Audio device hw:Juli cannot be acquired, trying to open it anyway...
> creating alsa driver ...
hw:Juli|hw:Juli|1024|2|48000|0|0|nomon|swmeter|-|32bit
>
> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
'defaults.namehint.extended'
> ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer
returned error: No such file or directory
> ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or
directory
> ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM hw:Juli
> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
'defaults.namehint.extended'
> ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer
returned error: No such file or directory
> ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or
directory
> ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM hw:Juli
> ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to
capture-only mode
> Cannot initialize driver
> JackServer::Open() failed with -1
> Failed to open server
> matthias@ustudio:~$
>
> ... but still got the same error. Any Ideas?

What is the terminal output of

arecord -l && aplay -l

?

> Am 08.04.2012 12:32, schrieb Pablo Fernandez:
>
>> El 08/04/2012 11:48, "Matthias Beyer"  escribió:
>>>
>>> Hi there again!
>>>
>>> I still have problems.
>>> I figured out, that Jack is the Problem: I cannot run jack. I do not
know
>>
>> why.
>>>
>>> Jack is not started after booting, so I start it on my own by typing
>>
>> "jackd -R -n "jserv" -p 128 -d alsa -d hw:Juli -s"
>>
>> Why non realtime mode? I suggest you should begin your tests with the
>> default settings and report the errors.  Just:
>>
>> jackd -dalsa -dhw:Juli
>>
>> Cheers!
>>
>>> It results in the following error:
>>> matthias@ustudio:~$ jackd -R -n "jserv" -p 128 -d alsa -d hw:Juli -s
>>> jackdmp 1.9.7
>>> Copyright 2001-2005 Paul Davis and others.
>>> Copyright 2004-2011 Grame.
>>> jackdmp comes with ABSOLUTELY NO WARRANTY
>>> This is free software, and you are welcome to redistribute it
>>> under certain conditions; see the file COPYING for details
>>> no message buffer overruns
>>> no message buffer overruns
>>> JACK server starting in realtime mode with priority 10
>>> Failed to connect to session bus for device reservation Unable to
>>
>> autolaunch a dbus-daemon without a $DISPLAY for X11
>>>
>>> Failed to acquire device name : Audio0 error : Invalid argument
>>> Audio device hw:Juli cannot be acquired, trying to open it anyway...
>>> creating alsa driver ...
>>
>> hw:Juli|hw:Juli|1024|2|48000|0|0|nomon|swmeter|soft-mode|32bit
>>>
>>> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
>>
>> 'defaults.namehint.extended'
>>>
>>> ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer
>>
>> returned error: No such file or directory
>>>
>>> ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or
>>
>> directory
>>>
>>> ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM hw:Juli
>>> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
>>
>> 'defaults.namehint.extended'
>>>
>>> ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer
>>
>> returned error: No such file or directory
>>>
>>> ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or
>>
>> directory
>>>
>>> ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM hw:Juli
>>> ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to
>>
>> capture-only mode
>>>
>>> C

Re: Hi there, I need help to configure Ubuntustudio on my machine

[Pablo Fernandez]

El 08/04/2012 11:48, "Matthias Beyer"  escribió:
>
> Hi there again!
>
> I still have problems.
> I figured out, that Jack is the Problem: I cannot run jack. I do not know
why.
> Jack is not started after booting, so I start it on my own by typing
"jackd -R -n "jserv" -p 128 -d alsa -d hw:Juli -s"

Why non realtime mode? I suggest you should begin your tests with the
default settings and report the errors.  Just:

jackd -dalsa -dhw:Juli

Cheers!

> It results in the following error:
> matthias@ustudio:~$ jackd -R -n "jserv" -p 128 -d alsa -d hw:Juli -s
> jackdmp 1.9.7
> Copyright 2001-2005 Paul Davis and others.
> Copyright 2004-2011 Grame.
> jackdmp comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> no message buffer overruns
> no message buffer overruns
> JACK server starting in realtime mode with priority 10
> Failed to connect to session bus for device reservation Unable to
autolaunch a dbus-daemon without a $DISPLAY for X11
>
> Failed to acquire device name : Audio0 error : Invalid argument
> Audio device hw:Juli cannot be acquired, trying to open it anyway...
> creating alsa driver ...
hw:Juli|hw:Juli|1024|2|48000|0|0|nomon|swmeter|soft-mode|32bit
> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
'defaults.namehint.extended'
> ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer
returned error: No such file or directory
> ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or
directory
> ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM hw:Juli
> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
'defaults.namehint.extended'
> ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer
returned error: No such file or directory
> ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or
directory
> ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM hw:Juli
> ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to
capture-only mode
> Cannot initialize driver
> JackServer::Open() failed with -1
> Failed to open server
> matthias@ustudio:~$
>
> I do not know what this tells me. If I write hw:0 or hw:1 instead of
hw:Juli, I get the same error.
> I really hope someone can help me. I already read so much boards and
stuff, I was on several IRC ubuntu channels and posted help requests in a
german ubuntu board, but noone told me helpful stuff. They just write "use
qjackctl" and "play around with qjackctl", but what does it help if Jack is
not started?
> Please helpme!
>
> anyway, have a nice easter-weekend.
>
> Matthias Beyer
>
>
> Am 28.03.2012 20:13, schrieb Matthias Beyer:
>
>> Hi there!
>> I'm new to this mailinglist, so hello everybody!
>>
>> Firstly, because I'm new, please tell me where I can find the terms of
use of this ML!
>> Secondly, I'm from germany and my english is not as good as it should
be! So if you don't understand what I'm talking about, please tell me and I
will find a better wording for what I mean.
>>
>> ---
>>
>> I need help to configure my Ubuntustudio on my machine. Currently, I
have _nothing_, just installed it on my Machine.
>> It's an Oneiric Ocelot Ubuntu Studio.
>> My Hardware:
>>-Soundcard: ESI Juli@
>>-Midikeyboard: Midistart 3
>>-Drumcontroller: Akai MPD24
>>-Speakers: Fostex PM04
>>-Microphone: AT3035
>>-Amp: Presonus TubePre
>>
>> Usergroups I'm in: adm, dialout, cdrom, audio, plugdev, lpadmin, admin,
sambashare
>>
>> Kind of machine I run on:
>>It's Fujitsu Siemens machine, 6497MC. ( Info from with dmidecode )
>>lspci gives me the following:
>>
>> matthias@ustudio:~$ lspci
>> 00:00.0 Host bridge: Silicon Integrated Systems [SiS] SiS649 Host (rev
10)
>> 00:01.0 PCI bridge: Silicon Integrated Systems [SiS] PCI-to-PCI bridge
>> 00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS965 [MuTIOL
Media IO] (rev 48)
>> 00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev
01)
>> 00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS]
SiS7012 AC'97 Sound Controller (rev a0)
>> 00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.1
Controller (rev 0f)
>> 00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.1
Controller (rev 0f)
>> 00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.1
Controller (rev 0f)
>> 00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0
Controller
>> 00:05.0 IDE interface: Silicon Integrated Systems [SiS] 182 SATA/RAID
Controller (rev 01)
>> 00:0a.0 Multimedia audio controller: VIA Technologies Inc. VT1720/24
[Envy24PT/HT] PCI Multi-Channel Audio Controller (rev 01)
>> 00:0c.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
>> 01:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300
SE/7200 GS] (rev a1)
>>
>>
>> The Midikeyboard is conected to the Soundcard b

Re: checking video with sound for acceptable Open Source standards

[Pablo Fernández]

El 11/12/11 22:29, Tom Poe escribió:
I created what I want to be an Open Source file.  I uploaded it to 
archive.org early this morning, so it may not be available for a 
while.  I'd like to know what command I can use to run on my file on 
my computer to show the information about the file.  Anyone know what 
commands to use?

Thanks, Tom



mplayer /path/to/the/videofile

plays the video file and shows relevant info about it.

Cheers, Pablo



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Re: 11.04 Alt Kernels

[Pablo Fernández]

I can't seem to find a repo which contains a lowlatency or realtime 
kerenl.  I see on the notes one is not provided by default, but I 
figured "some" repo has to have one, right?


Thanks,
Tim



Low latency kernels:

https://launchpad.net/~abogani/+archive/ppa?field.series_filter=natty
https://launchpad.net/~kxstudio-team/+archive/kernel/?field.series_filter=natty

Cheers! Pablo

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Re: Ardour Segmentation fault- won't start at all!

[Pablo Fernández]

> Thanks guys, but this doesn't either solves the problem. I have 
> purged-removed 
> and installed again, but nothing.
>
> I will try a memtest... 
>

Hi,

Also, take a look at /dev/shm

ls -l /dev/shm

You might need a

rm -f /dev/shm/pulse*

Cheers, Pablo

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Re: help, jackd crashing, don't know why

[Pablo Fernández]

El 10/04/11 14:52, wfdudley escribió:
> adding ram from 512M to 1024M fixed it.  Thanks!
>
> Bill Dudley
>


Well, I was not exactly saying that the problem was lack of RAM although
more RAM is better of course. I guessed you had 512 MB because of this
message:

Memory locking is unlimited - this is dangerous. You should probably
alter the line:
 @audio   -  memlockunlimited
in your /etc/limits.conf to read:
 @audio   -  memlock354993




This suggestion on the memlock limit is 75% of your total RAM, in kb.

The real problem is not the lack of memory but pulseaudio locking it. 
Manually cleaning /dev/shm is a must if you have little RAM and even
with 1 GB you could have problems.. Avoiding pulseaudio althogether can
be a good idea or not, depending on your needs.

I am not sure if pulseaudio should be left out of US or not, but this
bug[1] is a major drawback. It affects many more than 4 people yet is
marked as "won't fix". 

[1] 
https://bugs.launchpad.net/ubuntu/+source/jack-audio-connection-kit/+bug/491329


Cheers! Pablo


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Re: help, jackd crashing, don't know why

[Pablo Fernández]

El 09/04/11 22:47, Andrew escribió:
> Are you using qtjackctl or launching from a script/command line?
> Andrew Euell
> The Sound of IT - High tech solutions for audio problems
>
> -Original Message-
> From: wfdudley 
> Sender: ubuntu-studio-users-boun...@lists.ubuntu.com
> Date: Sat, 9 Apr 2011 14:18:59 
> To: 
> Reply-To: Ubuntu Studio Users Help and Discussion
>   
> Subject: help, jackd crashing, don't know why
>
> Hi,
>
> I upgraded my ubuntu studio box to Lucid Lynx and now jackd is crashing.
>
> Here's the log:
>
> 09:49:11.871 Patchbay deactivated.
> 09:49:11.914 Statistics reset.
> 09:49:12.068 ALSA connection graph change.
> 09:49:12.427 ALSA connection change.
> 09:49:21.874 Startup script...
> 09:49:21.876 artsshell -q terminate
> sh: artsshell: not found
> 09:49:22.280 Startup script terminated with exit status=32512.
> 09:49:22.281 JACK is starting...
> 09:49:22.283 /usr/bin/jackd -v -dalsa -dhw:0 -r44100 -p1024 -n3
> jackd 0.118.0
> Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben
> Hohn and others.
> jackd comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
> Memory locking is unlimited - this is dangerous. You should probably
> alter the line:
>  @audio   -  memlockunlimited
> in your /etc/limits.conf to read:
>  @audio   -  memlock354993
> 09:49:22.318 JACK was started with PID=4646
> getting driver descriptor from /usr/lib/jack/jack_dummy.so
> getting driver descriptor from /usr/lib/jack/jack_alsa.so
> getting driver descriptor from /usr/lib/jack/jack_firewire.so
> no message buffer overruns
> getting driver descriptor from /usr/lib/jack/jack_net.so
> getting driver descriptor from /usr/lib/jack/jack_oss.so
> JACK compiled with System V SHM support.
> server `default' registered
> registered builtin port type 32 bit float mono audio
> registered builtin port type 8 bit raw midi
> clock source = system clock via clock_gettime
> start poll on 3 fd's
> loading driver ..
> apparent rate = 44100
> creating alsa driver ... hw:0|hw:0|1024|3|44100|0|0|nomon|swmeter|-|32 bit
> control device hw:0
> new client: alsa_pcm, id = 1 type 1 @ 0x8fe7df8 fd = -1
> 09:49:24.722 Could not connect to JACK server as client. - Please
> check the messages window for more info.
> server thread back from poll
> new client: qjackctl, id = 2 type 2 @ 0xb788c000 fd = 13
> start poll on 4 fd's
> cannot read event connect result from server (interrupted system call)
> 09:49:25.155 JACK was stopped successfully.
> 09:49:25.162 Post-shutdown script...
> 09:49:25.164 killall jackd
> 09:49:25.165 Jack has crashed.
> jackd: no process found
> 09:49:25.661 Post-shutdown script terminated with exit status=256.
>
> The result of uname -a:
> Linux hdrec 2.6.31-11-rt #154-Ubuntu SMP PREEMPT RT Wed Jun 9 12:28:53
> UTC 2010 i686 GNU/Linux
>
> Current Ubuntu version: Lucid Lynx
>
> Is there anything more I should be reporting?
>
> Thanks in advance,
> Bill Dudley
> avid ubuntu user
>


I think you have little RAM, 512 MB or so? 

Check "ls /dev/shm". The problem could have to do with this:

https://bugs.launchpad.net/ubuntu/+source/jack-audio-connection-kit/+bug/491329

(This bug affects many more than 4 people even if they don't know, which
is the worst case).

See also:

http://www.linuxmusicians.com/viewtopic.php?f=27&t=2790

Cheers! Pablo



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Re: From an audio-cd into Ardour

[Pablo Fernández]

El 09/04/11 11:55, Erik Rasmussen escribió:
> Giuliano,
>
> If Ardour can import audio directly from an Audio CD, I'd love to know
> how, (because I have not seen such a feature in Ardour yet).
>
> *EXTRACT AUDIO WITH SOUND JUICER...*
> When extracting audio from an Audio CD, I like to use *Sound Juicer*.
> http://burtonini.com/blog/computers/sound-juicer
> It is available in the Ubuntu Software Center, calling it *Audio CD
> Extractor*.
>
> *EXTRACT AUDIO AS FLAC...*
> I prefer to store high quality audio files in the lossless FLAC
> format, which Sound Juicer supports.
> Free Lossless Audio Codec (FLAC) takes up much less space than the
> original WAVE file, but is lossless, (so it is just as good as the
> original WAVE file).
> Ardour 2.8.6 supports both IMPORT and EXPORT of FLAC files, so then
> you're all set to use your newly created FLAC files in Ardour.
>
> Hope that helps!
> -Erik 
>
> On Sat, Apr 9, 2011 at 04:35, Giuliano Braglia  <mailto:forever...@gmail.com>> wrote:
>
> Hello Community!
>
> Just asking your opinion about the best way to do it. That's the
> situation:
>
> I've got this CD from which I want to extract a track (or more)
> into Ardour in order to modify it (maybe sing on it or other)
>
> Do I have to extract it in wave format before? And if so, what's
> the best way to extract it in the best quality possible?
>
> Otherwise, is there a way to "put" it directly into Ardour?
>
>
> :)
>
>
>
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>


Another option is playing the CD with a jack-aware audio player and
route its outputs to an ardour stereo track inputs, so you can record
the CD in ardour as it plays.

You can use VLC, mplayer, rhythmbox... once you have made them use the
jack audio output plugin.

Cheers! Pablo



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Re: Tascam us-122 (non L!): the lights are ON, but no sound.

[Pablo Fernández]

El 06/03/11 21:32, Giuliano Braglia escribió:
> Hello. I hope I'm doing it properly...
>
> I just got this US122 (used) and I can't get it working. Googling
> around and trying for days, I haven't been able to solve the issue.
>
> Let's start from the beginning: I have got Lucid, and I used an
> italian guide to set the kernel rt and the programs. Then I proceded,
> using a guide on the web, to set up the card. It wasn't hard to
> succeed in make it blink (the "usb" light), and make the system
> recognize it (in the audio preferences I actually can see it, although
> it sometimes has input/output and sometimes only input...)
>
> The problem: as soon as I select it as output, I hear no sound. Say,
> in the audio player, if I select the card as output and then I press
> play, it doesn't play (not only is it silent, but it stands still).
>
> As input, the sound recorder doesn't start, and I get no input level.
>
> That's all... i tried a lot of things. I'm in contact with a Casey (
> :) ) who says that he is working with it, and I'm waiting for his
> response. I already tried to uninstall and reinstall alsa packages.
> Now I'm writing here...
>
> p.s.: it works with another O.S., something ugly with some strange
> name like Windows (seven...).
>
> Thanks
>
> Gyl


Hi Giuliano,

Is this yours?

 http://ubuntuforums.org/showthread.php?t=1700445

Supposing the TASCAM keeps on being "scheda:2", take a look at

alsamixer -c2

and/or post the output of

amixer -c2

I don't know if this card has an internal mixer that you can access from
alsamixer though, just trying to guess.

Try:

speaker-test -Dfront:USX2Y -c2

You should hear pink noise.

Another thing, have you tried with jack? Try for example:

jackd -dalsa -dhw:USX2Y -n3

(This is in a terminal, as a test. There is a gui frontend called
qjackctl or Jack Control. This command means, more or less: Use the alsa
driver on the card hw:USX2Y in realtime mode, with 3 periods per buffer,
48000 kHz, 1024 frames per period).

If jackd starts, install aqualung (a jack-aware audio player) and try
playing a song.

Many of us use jack to capture / playback audio. Actually, Linux DAWs
depend on jack. Gnome sound preferences is a pulseaudio frontend.  I
don't know if pulseaudio works with your card or not, but you should use
Jack if you want to record music.

Note that both pulseaudio and jack use the alsa driver.

Cheers, Pablo






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Re: [Maverick] Issue with Qtractor + Fluidsynth-DSSI EVEN IF EVERYTHING IS FROM THE REPOSITORIES

[Pablo Fernández]

Hi Ralf!

See also:

https://bugs.launchpad.net/ubuntu/+source/fluidsynth/+bug/659112

The user in comment #17 suggests a workaround. I suggest another one: 
Calf Fluidsynth-dssi

> To build Qtractor from SVN I need the package dssi-dev from the
> repositories, but to install it, JACK2 from the repositories will be
> replaced by JACK1 from the repositories.
>
>
I think this is a bug that should be reported to launchpad.


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Re: recommended midi hub?

[Pablo Fernández]

El 22/02/11 15:21, bart deruyter escribió:
> Hi all,
>
> I've got a usb2midi device, that works quite well, though there is a
> bit of a latency problem when recording. It's a midisport2x2. That's
> not the only problem I have with it, it is limited to 2 midi ports.
> I'd like to have more midi devices connected to my PC, like my guitar
> effects, which could be controlled by a sequencer, or the other way
> round, the effects pedal controlling rakarrack.
> I already have both midi ports connected, one to a digital drum and
> another to a keyboard, but in the future I'd like to add more
> instruments and midi controlled tools.
>
> To be able to expand enough, I'd be thinking of a 6x6 or even 8x8 midi
> hub, if that exists, and is possible without noticeable latency. Which
> brands are certainly working very well in ubuntustudio?
Hi,

See:

http://alsa.opensrc.org/USBMidiDevices#Midisport_8x8

and

http://lists.linuxaudio.org/pipermail/linux-audio-user/2005-March/021379.html


> I already had to face a disappointment with my audiofire 12, which has
> a midi port, in and out, but is not reachable through jack, though the
> FFADO site reported the audiofire to be 100% supported.
>
> Any ideas?

Did you ask in the ffado users mailing list? What is the output of
ffado-diag?

Cheers, Pablo


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Re: Musescore MIDI out in Ubuntu Studio 10.04?

[Pablo Fernández]

Hi Angel,

El 13/01/11 13:16, Angel de Vicente escribió:
> Hi,
>
> I'm not sure I will ever need it, but getting MIDI stuff out of
> Musescore seems nice, and I was trying to get it connected to a
> Virtual MIDI keyboard (as in
> http://www.youtube.com/watch?v=f_jlej7cnQA), but I cannot get it to work.
>
> I have Ubuntu Studio 10.04, VMPK version 0.3.0, and Musescore 0.9.6.2
> (revision 3400). What I did:
>
> * In Musescore I go to preferences->I/O and select "Use JACK MIDI
> output". Quit MuseScore (screenshot at:
> http://www.flickr.com/photos/angelv/5351272965/in/set-72157625688106445/)
>
> * Start JACK
>
> * Start VMPK
>
> * Start MUSESCORE
>
> In the Jack Audio Connection Kit "Connections" view, I see "Mscore1"
> in the MIDI tab as readable client, but VMPK Input only shows in the
> ALSA tab, so I cannot connect them. (screenshot at:
> http://www.flickr.com/photos/angelv/5351885762/in/set-72157625688106445/)
>
> Does somebody know if I'm doing something wrong (or forgetting to do
> some extra step)?.
You need a bridge between alsa midi and jack midi.  a2jmidid will do the
trick. The connect jack midi out from mscore to a2j:vmpk:in

Tip: To get a2jmidid up and running every time you start jack (it
doesn't hurt when you don't need it), in qjackctl, execute after server
start: "a2jmidid &" (add -e option to a2jmidid if you have a real midi
keyboard).

>
>
> By the way, in case I try to connect them directly with Patchage, I
> get the message "Cannot connect Jack audio port to Alsa Midi port!",
> so is it considering the "mscore-midi-1" as a Jack audio port???
> (screenshot at:
> http://www.flickr.com/photos/angelv/5351273007/in/set-72157625688106445/)
This seems like a bug in your patchage version, which is very old. I
strongly recommend you update it. This is a PPA with a much more recent
version of patchage for lucid:

 https://launchpad.net/~philip5/+archive/extra

Cheers!

Pablo



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Re: cheap usb-audio-interface

[Pablo Fernández]

El 07/01/11 22:30, Roy Damen escribió:
> Hello Martin, i bought a behringer u-202(n...@home,i think this is the
> type ) usb audio device for Christmas for myself. Behringer has good
> inside quality with saving on the housing, which means cheap. It has a
> max of 48kHz, but worked out of the box with pulseaudio, digital
> output, jack and alsa in a better way than the onboard card(alc888).
> Even the soundquality is better than the onboard @ 48kHz. The funny
> thing is that it costed 27 Euro's incl shipping and it is a very small
> high quality device, Check your local dealer or the Behringer site for
> this soundcard with line in/out spdif-out and usb, i say the
> price/quality is pretty amazing for a small device like this,!

+1 for the Behringer UCA202. It works amazingly well for its size,
weight and price. No MIDI I/O though.

>
> 2011/1/7 mentoj dija mailto:mentoj_d...@gmx.de>>
>
> hey there,
>
> does somebody know a cheap, small usb-audio-interface, which works
> out of the box with Ubuntu? just with one or two mic-inputs and a
> headphone-out. maybe with midi-in and -out. very basic one!
>
> i don't care if it is only available second hand on ebay...
>
> cheers
>
> martin
>
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Re: I don't have sound on Ubuntu studio

[Pablo]

Douglas Pollard escribio':
> Hi all, I could use a little help here. I am trying to do video on 
> Kdenlive and  I don't have sound. I am using ubuntu studioI have been 
> doing things I did not need sound for so it may have been several 
> weeks??   I don't have any sound not even when playing a cd or DVD 
> video.  I have an ASUS  mother board with a built in sound card. The 
> computer is dual boot Hewlett Packard with xp and Ubuntu 10.10 as well 
> as Genome and kde desktops. I have not had sound since installing ubuntu 
> studio 10 10 and updated from 10.4  I think that is when I lost sound. 
> If anyone needs more info to help me please advise and I will try to get 
> it for you.   Thanks Doug
>
>   
Hi,

There is this script called alsa-info. Download it:

wget http://www.alsa-project.org/alsa-info.sh -O alsa-info.sh

Take a look at the purpose of the script, just below the license.

You run it with:

bash alsa-info.sh

Upload the info and give the URL, so someone can help.

Cheers! Pablo




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Re: Tasks, Workflows, and Packages for Ubuntu Studio Natty

[Pablo Fernandez]

gt; Use internal synthetiser. Jack Audio Server. Use JACK
MIDI output (1 port). Restart mscore (restarting is only needed the first
time)
Start vmpk
In qjackctl or patchage, connect the jack midi port of mscore to the a2j
vmpk midi input
Play the demo and watch vmpk highlighting the notes in real time. as you
hear the music.
If you have a midi keyboard:
Start qsynth (load a soundfont if not loaded)
In qjackctl or patchage, connect the midi keyboard ouput to qsynth midi
input and qsynth audio output to the system: playbacks.
Play the midi keyboard and watch vmpk highlithing the notes in realtime as
you hear the music.
Prepare lessons for the students

Further information: http://vmpk.sourceforge.net/ (don't miss the video
demo)


As a further comment, I wish Natty includes jack_capture as a simple jack
recorder. Adding to the original task in the wiki:
Simple recording of concert, conversation etc

Explanation - Simple recording of incoming signals (analog or digital) down
to disk. Typical application would be recording of a concert. No low-latency
is needed here, so Jack might be overkill (unless a FW card is used).

Applications Used - Audacity (as an alternative, qarecord?)

Workflow

   - start Audacity
   - setup Audacity to use the right inputs and the right filename
   - click "record"

Alternative in a jack environment:

Explanation: Record what you hear through the speakers. Jack_capture is a
simple jack_aware recorder with an inuitive gui that autoconnects to its
capture input ports all the audio ports that are connected to the system:
playbacks. It can record directly to mp3, ogg, flac and wav.

Aplications used: JACK, qjackctl, jack_capture_gui2

Workflow:
Start JACK with qjackctl
Launch jack_capture_gui2
Set the audio format to record
Click Record




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Re: No sound without JACK

[Pablo]

Hi Ralf!

Ralf Mardorf wrote:

> 1. How should sound be enabled usually for apps without JACK audio support  
> on Ubuntu Studio?
>
> Could there be an issue regarding to PA not loading the needed modules?
> I'm using two Envy24 based Terratec EWX 24/96 PCI sound cards on amd64  
> architecture, on-board sound is disabled.
>   
Check this:

https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/178442

I did as comment #30 and it worked for me with a m-audio audiophile 2496 
which also uses the alsa module snd-ice1712. The problem remains in 
ubuntustudio maverick alpha. See:

http://www.mail-archive.com/ubuntustudio-test...@lists.launchpad.net/msg00351.html


> 2. Does anybody know how to add libflashsupport-jack? Compiling and  
> installing seems to be ok, I guess there's an issue regarding to set up  
> everything correctly.
I am not sure. I am checking this post and comments:

http://www.linuxmusicians.com/viewtopic.php?f=4&t=2323&st=0&sk=t&sd=a&hilit=flash+player

Please, let us know if you solve this.

Cheers! Pablo
> Cheers!
>
> Ralf
>
> [1]
> 
> Ubuntu Studio
>
> $ sudo apt-get update
> $ sudo apt-get install libasound2-dev libjack-dev libsamplerate0-dev  
> libssl-dev build-essential git-core autoconf automake libtool
> $ git clone git://repo.or.cz/libflashsupport-jack.git
> $ cd libflashsupport-jack
> $ sh bootstrap.sh
> $ make
> $ sudo make install
> $ sudo ln -s /usr/lib/libflashsupport.so /usr/lib/firefox-3.6.8/
>
> $ cat /etc/ld.so.conf.d/libc.conf
> # libc default configuration
> /usr/local/lib
>
> # Regarding to libflashsupport I added:
> # If you ever happen to want to link against installed libraries
> # in a given directory, LIBDIR, you must either use libtool, and
> # specify the full pathname of the library
> # [snip] add LIBDIR to `/etc/ld.so.conf'
>
> /usr/lib
> /usr/lib/libflashsupport.so
>
> $ sudo ldconfig
>   




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Re: ubuntu studio 10.04 and novation x-station - trying to record audio 1 and 2

[Pablo]

 you understand the basics 
(and learn some tricks and workarounds) you can make up your own 
workflow with the several and good tools you have. I mentioned ardour 
because I use it and it is "the" linux multitrack recorder, but for home 
recording it can be overkilling. You have audio tracks in Rosegarden  / 
qtractor / Muse as well.


I recommend these URL's:

http://wiki.linuxmusicians.com/doku.php
(linuxmusicians wiki, newbies section)

http://www.linuxmusicians.com/
(the forum, where linuxmusicians of all countries and distros meet)

http://lievenmoors.github.com/
(a series of lectures on Linux & Audio)

Also, www.ardour.org, www.rosegardenmusic.org, www.rncbc.org, and in 
general, official sites of the programs, in which you can find direct 
support form the devs and some advanced users.


>
> On Sun, 2010-07-18 at 23:47 -0500, jay gallivan wrote:
>   
>> On Sat, Jul 17, 2010 at 6:34 PM, Pablo  wrote:
>> jay gallivan escribió:
>> > Thanks for your reply. I'm a total newbie to all of this.
>> 
>> Hi Jay,
>> 
>>
>> Greetings. Long couple of days growing my understanding of audio on
>> Linux. I've worked with micros since 1981, UNIX since 1988 and Linux
>> since 1996. I've never had to pay attention to audio before now. Is
>> this what happens when computer people find themselves in a band?
>> That's how I came to this. I play bass. It's tough to get the the
>> three of us together. So, the plan was to record the leader - who does
>> the singing and plays acoustic guitar - so i could practice. The
>> X-Station was lying around (bought for one of the kids years ago) and
>> I have 'extra' Linux boxes. So, the adventure began 
>>  
>> Pulseaudio is a linux sound system (audio server) desktop
>> oriented and
>> Jack (Jack Audio Connection Kit) is another one, oriented
>> towards music
>> production (low latency, anything to anywhere connections...).
>> Both use
>> the alsa drivers (jack can also use the ffado drivers for
>> firewire audio
>> devices but this is not your case) but apart from that, they
>> are very
>> different beasts.
>>
>> ALSA had been just another four letter word to me. No more.
>> 
Alsa is a lot of things at the same time and depending on the context, 
"alsa" refers to completely different concepts. See 
http://lievenmoors.github.com/

>>  
>>
>> 
>> Timidity is a default midi server. It can do jack, but it
>> doesn't by
>> default. In a musical environment timidity is not as used as
>> qsynth for
>> example, which is "jackified" by default. But you must load a
>> soundfont
>> in qsynth.
>>
>> I'm beginning to get the idea of MIDI. Another protocol. In Rosegarden
>> I can seen MIDI message flow. That's helpful in the same way that
>> looking at network packet traces are helpful. "Oh. So that's what's
>> going on."
>>  
>> 
>> In order to use Rosegarden (the audio part) you need the jack
>> audio
>> server and forget about pulseaudio interfaces (once jack takes
>> hold of
>> your soundcard, pulseaudio is useless, and, hopefully,
>> harmless). You
>> launch the server by means of a graphical front-end called
>> qjackctl
>> (Jack Control in the sound and video menu). First, you press
>> "setup" to
>> configure the jack audio server. In the interface field you
>> select your
>> usb audio card (you will see a generic usb-audio or similar, I
>> guess).
>> Then press start to activate jack.
>>
>> Pulseaudio drops out of the picture but the motherboard audio i/o
>> still seems to be there. This appears to be the path to my external
>> speakers for monitoring. So that would be something like
>> Ardour/Rosegarden -> Jack -> ALSA -> chips -> speakers?
>> 
Yes!

Jackified audio apps -> Jack -> ALSA driver -> hardware audio device -> analog 
in / outs -> micros / speakers

For firewire audio cards:

Jackified audio apps -> Jack -> FFADO driver (firewire) -> hardware audio 
device -> analog in / outs -> micros / speakers




>> 
>> If jack does not start, this is the first problem you should
>> solve (more
>> below).
>>
>> I had 

Re: ubuntu studio 10.04 and novation x-station - trying to record audio 1 and 2

[Pablo]

jay gallivan escribió:
> Thanks for your reply. I'm a total newbie to all of this.
Hi Jay,

Pulseaudio is a linux sound system (audio server) desktop oriented and 
Jack (Jack Audio Connection Kit) is another one, oriented towards music 
production (low latency, anything to anywhere connections...). Both use 
the alsa drivers (jack can also use the ffado drivers for firewire audio 
devices but this is not your case) but apart from that, they are very 
different beasts.

Timidity is a default midi server. It can do jack, but it doesn't by 
default. In a musical environment timidity is not as used as qsynth for 
example, which is "jackified" by default. But you must load a soundfont 
in qsynth.

In order to use Rosegarden (the audio part) you need the jack audio 
server and forget about pulseaudio interfaces (once jack takes hold of 
your soundcard, pulseaudio is useless, and, hopefully, harmless). You 
launch the server by means of a graphical front-end called qjackctl 
(Jack Control in the sound and video menu). First, you press "setup" to 
configure the jack audio server. In the interface field you select your 
usb audio card (you will see a generic usb-audio or similar, I guess). 
Then press start to activate jack.

If jack does not start, this is the first problem you should solve (more 
below).

If it starts, then the jack audio clients, like rosegarden, and many 
more (most music oriented programs are jack-aware by default) will show 
their ports in the connect window, audio tab, when you launch them.
The MIDI tab stands for jack MIDI which is not used by Rosegarden 
nowadays. The alsa tab refers to alsa  sequencer or alsa MIDI. It has 
nothing to do with jack but it is there for convenience because several 
synths and sequencers use the alsa sequencer for MIDI and jack for 
audio. Some newer ones use jack MIDI and jack audio but not Rosegarden.

This explains that you could capture midi in Rosegarden despite the jack 
server was not active.

Also, take into account that Rosegarden does not make sounds by itself 
and it has not any default synth that makes it work out of the box.. It 
needs either a software synth plugin or an external synth, either 
software (say, qsynth, zynaddsubfx...) or hardware.  But this is a 
second step. The first step is jack setup.

In order to have jack working in realtime mode (recommended) you need, 
as a user, some priorities that you can check in a terminal with:

ulimit -r (this is realtime priority for the user)
ulimit -l (this is memlock limit for the user)

You need the first one at ninety-something and the second one, unlimited 
or a reasonable amount of your RAM, in kB. In turn, to gain these 
privileges, there must be a file called:

/etc/security/limits.d/audio.conf

with the relevant lines. So please, do a:

cat /etc/security/limits.d/audio.conf

and you must have something like:

@audio - rtprio 99
@audio - memlock unlimited

Now you (you the user) have to belong to the "audio" group. Check in a 
terminal with:

groups

If you see audio (between others) you are done. If you don't, you must do:

sudo adduser user audio

where "user" is your login name. Then reboot and you will have the 
system prepared to use jack
(check again with the ulimit commands)



>
> I don't see anything in Patchbay. In PulseAudio Manager I see 
> X-Station analong stero as a sink and the same as sources for stereo 
> and stereo monitor.

Just don't use pulseaudio.
>
> When I connect (via Connect) X-Station to Timidity I am able to play 
> the keyboard and hear the results via my computer's speakers. And I 
> can record and playback via Rosegarden when I connect X-Station to 
> Rosegarden.
Don't use timidity unless you do it jack-aware.

>
> I've tried Audacity on my Windows XP box and I've been able to 
> pickup/record from the X-Station audio ports - though merged into a 
> single track for some reason.
>
> So it seems that the X-Station is doing what it's supposed to do. But 
> that (some component of ) Ubuntu Studio is dropping the X-Station 
> audio. Any thoughts on that?
See above.

Cheers! Pablo


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Re: Real time for Ubuntu Studio 10.04 amd64

[Pablo]

>
> One more significant(for me) reason for still using 2.6.31, except 
> nvidia-problem,  is that I find out that command ps output was somehow 
> changed in subsequent kernels, so steps starts from 3 
> from http://subversion.ffado.org/wiki/IrqPriorities is not working.
>

Hi Oleg,

Just an idea. I use htop to see the processes and kernel threads' 
priorities.

sudo apt-get install htop terminator

I run htop in terminator because it uses the F10 to save configuration 
changes and gnome-terminal uses F10 to show the menus.

F2 -> Display Options: Disable "Hide kernel threads" -> F10
F6 -> Sort by: PRI

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Re: What's wrong with jack ?

[Pablo Fernandez]

 So the user should have the

> option to disable it completely - the same as he/she has the option not
> to use nautilus or apache.
> And this should be possible *without* deinstalling it.
>

I agree


>
> Again: is there ANY sane reason, that this script does not edit
> /etc/security/limits.conf?
>
> The script works but it breaks standards, that used to work like a charm
> for years now in the Linux audio realm. Asking G "how to setup linux for
> jack" turns out dozens of tutorials how to set up limits.conf. All of
> those work perfectly well on any Linux.
>

I find it neater the way it is now. As a user, I think the case
is similar to /etc/apt/sources.list and
/etc/apt/sources.list.d/someother.list
Particular configurations for particular goals are in a separate file.
Someone in the LAU list mentioned other examples and gave better reasons.
Anyway,  the user does not have to bother anymore with editing a system
file.

More authoritative reasons are here:
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507248
I like when Steve writes "common doesn't mean correct".

We will have to learn again  :)


>
> Plus, as you mention yourself later on, the script must set up group
> audio as well, this is a no-brainer and I really do not know, why the
> packagers do not implement that.
>

I didn't say exactly so. I think a package script must not deal with users
and groups.
But the distro should do it, imho.


>
> > For the rest, qjackctl launches pasuspender so pulseaudio is (almost) out
> of
> > the way.
>
> I recommend that. It works very much OK for me.
>
> > Afaik, a cleaner approach than pasuspender or the rm you suggest in
> getting
> > rid of pulseaudio is the following:
> >
> > qjackctl -->  Options tab, execute script on startup:
> > pulseaudio -k
> >
> > (this kills pulseaudio) (artsshell sounds like jurasic)
> >
> > However, pulseaudio will respawn automatically if you don't do the
> > following:
> >
> > $ sudo edit /etc/pulse/client.conf
> >
> > Change the line:
> > ; autospawn = yes
> > to:
> > autospawn = no
> >
> > If you wish to start pulseaudio, once the jack session is finished:
> >
> > $ pulseaudio --start
>
> This methods I tried in Open Suse 11.2 and it broke my system so
> globally and totally that I abandoned the OpenSuse-Installation. So I
> really recommend to check out, if pasuspender does the trick


In my case, pasuspender does the trick but I don't want a pulseaudio daemon
running at all.
https://help.ubuntu.com/community/UbuntuStudioPreparation#Pulse%20Audio
recommends creating a *~/.pulse/client.conf*  with "autospawn = no" (instead
of editing the system wide /etc/pulse/client.conf as I suggested) and then
put "pulseaudio -k" as a "Startup Application".

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Re: news about last Paris Ubuntu party

[Pablo Fernandez]

>
> conference and interview should be available under ogg/ogv in few 
> days,
>

Cool!
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Re: What's wrong with jack ?

[Pablo Fernandez]

On Mon, May 31, 2010 at 3:17 AM, Jose H.  wrote:

> Hi all,
>
> Jack is used for everything, it just seems to be the standard for anything
> related to audio in linux, BUT it doesn't work out of the box in Ubuntu
> Studio, which for me seems like a huge contradiction, you have everything
> that works with jack, but jack doesn't work :S
>



I agree that jack should work out of the box in ubuntustudio but I don't
agree that pulseaudio should not be the default audio system.

In many cases, jack does not suit users well but pulseaudio is fine.

As I see it, Jack is a must  for audio production, but not for audio in
general. For example, if you have a surround system like in a home cinema,
pulseaudio is the audio system that just works. Not jack.



> Am I supposed to *"rm /usr/bin/pulseaudio"* to make jack work ?, or it is
> just that Ubuntu Studio is not ready to be used for music production in a
> real sense ? = it is just for testing and experimenting
>

US is almost there. Imho, US should add the first user to the audio group
automatically so that jackd starts out of the box from qjackctl. jackd post
inst script (in lucid) gives the users in the audio group the privileges
that jackd needs.

For the rest, qjackctl launches pasuspender so pulseaudio is (almost) out of
the way.

Afaik, a cleaner approach than pasuspender or the rm you suggest in getting
rid of pulseaudio is the following:

qjackctl --> Options tab, execute script on startup:
pulseaudio -k

(this kills pulseaudio) (artsshell sounds like jurasic)

However, pulseaudio will respawn automatically if you don't do the
following:

$ sudo edit /etc/pulse/client.conf

Change the line:
; autospawn = yes
to:
autospawn = no

If you wish to start pulseaudio, once the jack session is finished:

$ pulseaudio --start

BTW, pavucontrol seems better to me than gnome sound control, both being
pulseaudio control interfaces.

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Re: ALESIS MULTIMIX 16 FIREWIRE

[Pablo Fernandez]

On Thu, Feb 11, 2010 at 7:28 AM, Thomas Fisher  wrote:
> On Wednesday 10 February 2010 07:51:34 pm mentoj_d...@gmx.de wrote:
>> hey folks
>> my brow and i are thinking about buying this:
>>
>> http://www.thomann.de/gb/alesis_multimix_16_firewire.htm
>> i think, it should work under linux. he's not sure. what do you guys think?
>> are we able to route every single channel with jack then?
>>
>> martin
> ===
> Martin, my suggestion is to check:
> ---
> Linux Audio Users [LAU] archive
> http://lad.linuxaudio.org/archive/lau.html
> ---
> Linux Audio User's list.
> http://lad.linuxaudio.org/subscribe/lau.html
> ---
> http://lau.linuxaudio.org/
>
> I hope this may be of use.
> Tom


Also, check the ffado site:
www.ffado.org

Here:
http://www.ffado.org/?q=devicesupport/list

If I were you I would buy one with full support, not just "Reported to work".

Cheers, Pablo

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Re: Fichiers .mo et .po

[Pablo Fernandez]

Hi Teza,
I don't know and I don't think this is the right approach if we are
talking about FOSS
Cheers! Pablo

2010/2/7 teza :
> teza a écrit :
> Hi, is there someone out there who knows how to convert a .mo file in a
> .po file readable in Poedit?
> Regards
> Teza
>
>
> ://////::::::/:
>> Bonjour, est ce que quelqu'un a une idée sur le comment créer un fichier
>> .po lisible dans Poedit, depuis un fichier .mo?
>> Merci
>> Amts
>> Teza
>>
>>
>>
>>
>
>
>
>
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Re: Mackie Onyx Firewire

[Pablo Fernandez]

On Tue, Jan 5, 2010 at 11:58 PM, Luke Yelavich  wrote:

> On Wed, Jan 06, 2010 at 09:25:36AM EST, Michael Sullivan wrote:
> > Hi all
> >
> > I recently purchased the Mackie Onyx Firewire option for my Onyx
> > Mixer.   I am running AMD64 Ubuntu Studio 8.04.  I got the sound working
> > fine with jack, but only using Jack.That is to say, if I go to
> > Youtube or some site with embedded audio / video I don't have sound.
> >
> > My previous setup was a M-audio delta 66.  I had no problem using that
> > on web sites.
> >
> > Am I missing something or does the Onyx only work using jack?
>
> Only jack supports firewire audio devices at this time. In order to get
> sound via the firewire device from youtube etc, you would need to set up
> alsa using apps to go via the alsa -> jack plugin.
>
> Luke
>
> Another solution, imho much better than the alsa-jack plugin, is to
"jackify" the flash player.
See at:  http://www.linuxmusicians.com/viewtopic.php?f=4&t=2323

Pablo

>
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Re: compiling dssi-vst in ubuntu karmic 9.10 x86_64 (was: Re: Ubuntu Audio Tweaks error)

[Pablo Fernandez]

On Mon, Jan 4, 2010 at 12:37 PM, Colectivo Sonidos Libertarios <
sonidoslibertar...@resist.ca> wrote:

> Hi Pablo, Hi Teza!
>
> Thanks Pablo for the Spanish Guide, (aclara muchas cosas) and teza for the
> help (j apprecie aussi le continue interes pour partager tous types de
> nouvelle fonctionalité); i add the include line and the path for dssi and
> ladpsa in makefile and have a new error for make and makeinstall.
>
> sonidoslibertar...@salacontrol:~/Escritorio/dssi-vst-0.8$ make
> wineg++ -m32 -Ivestige -Wall -fPIC remotepluginclient.cpp -c -o
> remotepluginclient.w32.o
> wineg++ -m32 -Ivestige -Wall -fPIC remotepluginserver.cpp -c -o
> remotepluginserver.w32.o
> wineg++ -m32 -Ivestige -Wall -fPIC rdwrops.cpp -c -o rdwrops.w32.o
> wineg++ -m32 -Ivestige -Wall -fPIC paths.cpp -c -o paths.w32.o
> ar r libremoteplugin.w32.a remotepluginclient.w32.o
> remotepluginserver.w32.o rdwrops.w32.o paths.w32.o
> ar: creating libremoteplugin.w32.a
> wineg++ -m32 -Ivestige -Wall -fPIC dssi-vst-server.cpp -o dssi-vst-server
> -L. -lremoteplugin.w32 -lpthread
> dssi-vst-server.cpp: In member function ‘virtual void
> RemoteVSTServer::hideGUI()’:
> dssi-vst-server.cpp:568: warning: unused variable ‘fd’
> wineg++ -m32 -Ivestige -Wall -fPIC dssi-vst-scanner.cpp -o
> dssi-vst-scanner  -L. -lremoteplugin.w32 -lpthread
> g++ -Ivestige -Wall -fPIC remotepluginclient.cpp -c
> g++ -Ivestige -Wall -fPIC remotepluginserver.cpp -c
> g++ -Ivestige -Wall -fPIC rdwrops.cpp -c
> g++ -Ivestige -Wall -fPIC paths.cpp -c
> ar r libremoteplugin.a remotepluginclient.o remotepluginserver.o rdwrops.o
> paths.o
> ar: creating libremoteplugin.a
> g++ -Ivestige -Wall -fPIC remotevstclient.cpp -c
> g++ -shared -Wl,-Bsymbolic -g3 -Ivestige -Wall -fPIC -o dssi-vst.so
> dssi-vst.cpp remotevstclient.o  -L. -lremoteplugin -lasound
> In file included from dssi-vst.cpp:12:
> /usr/include/dssi.h:28:28: error: alsa/seq_event.h: No existe el fichero ó
> directorio
> dssi-vst.cpp:14:33: error: alsa/seq_midi_event.h: No existe el fichero ó
> directorio
> In file included from dssi-vst.cpp:12:
> /usr/include/dssi.h:307: error: ‘snd_seq_event_t’ has not been declared
> /usr/include/dssi.h:321: error: ‘snd_seq_event_t’ has not been declared
> /usr/include/dssi.h:359: error: ‘snd_seq_event_t’ has not been declared
> /usr/include/dssi.h:375: error: ‘snd_seq_event_t’ has not been declared
> dssi-vst.cpp:51: error: ‘snd_seq_event_t’ has not been declared
> dssi-vst.cpp:77: error: ISO C++ forbids declaration of ‘snd_midi_event_t’
> with no type
> dssi-vst.cpp:77: error: expected ‘;’ before ‘*’ token
> dssi-vst.cpp:120: error: ‘snd_seq_event_t’ has not been declared
> dssi-vst.cpp: In constructor
> ‘DSSIVSTPluginInstance::DSSIVSTPluginInstance(std::string, long unsigned
> int)’:
> dssi-vst.cpp:179: error: ‘m_alsaDecoder’ was not declared in this scope
> dssi-vst.cpp:179: error: ‘snd_midi_event_new’ was not declared in this
> scope
> dssi-vst.cpp:185: error: ‘snd_midi_event_no_status’ was not declared in
> this scope
> dssi-vst.cpp: In destructor ‘virtual
> DSSIVSTPluginInstance::~DSSIVSTPluginInstance()’:
> dssi-vst.cpp:231: error: ‘m_alsaDecoder’ was not declared in this scope
> dssi-vst.cpp:232: error: ‘snd_midi_event_free’ was not declared in this
> scope
> dssi-vst.cpp: At global scope:
> dssi-vst.cpp:371: error: ‘snd_seq_event_t’ has not been declared
> dssi-vst.cpp: In member function ‘void
> DSSIVSTPluginInstance::runSynth(long unsigned int, int*, long unsigned
> int)’:
> dssi-vst.cpp:376: error: ‘m_alsaDecoder’ was not declared in this scope
> dssi-vst.cpp:383: error: ‘snd_seq_event_t’ was not declared in this scope
> dssi-vst.cpp:383: error: ‘ev’ was not declared in this scope
> dssi-vst.cpp:396: error: ‘snd_midi_event_decode’ was not declared in this
> scope
> dssi-vst.cpp: At global scope:
> dssi-vst.cpp:680: error: ‘snd_seq_event_t’ has not been declared
> make: *** [dssi-vst.so] Error 1
>


You are welcome. It looks like you haven't installed libasound2-dev.


Cheers! Pablo
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Re: compiling dssi-vst in ubuntu karmic 9.10 x86_64 (was: Re: Ubuntu Audio Tweaks error)

[Pablo Fernandez]

Hi, Camilo. My 2 cents; Follow Teza's directions but it could be that more
problems arise.

This dssi-vst should be easy to compile but it is a bit tricky. You should
also check where the ladspa and dssi directories are and set the path in the
Makefile so that you can use dssi-vst as wrapper, dssi-vst (obviously) and
also ladspa-vst, in addition to using it as a stand alone jackified vst
host. It could be that this is not strictly necessary, but take a look at
it.

If you follow the link below, the whole process is explained in Spanish.

Cheers! Pablo

www.semicorchux.blogspot.com
"Ayuda para hacer música con Linux" (= (more or less) Help for making music
with Linux)
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gstreamer through jack: Rhytmhbox, no problem. Totem fails

[Pablo Fernandez]

Hi all!

I am new to this list. I hope you are fine!

I am using ubuntu 9.04 in an Acer Aspire One netbook, customised for audio
work (with packages from ubuntu and 64studio jaunty backports) and
a standard recently installed US 9.10 in my desktop computer, in which I am
having this problem.

I am trying to "jackify"  rhytmhbox and totem.

Well, I have installed gstreamer-plugins-bad and I have:

 /usr/lib/gstreamer-0.10/libgstjack.so

then launched the 'gconf-editor' and put 'jackaudiosink' in the music, chat
and audio sinks in

~/.gconf/system/gstreamer/0.10/default

Now, rhythmbox plays nicely through jack, but totem doesn't.

In my netbook, both work with these tweaks.

Any ideas? Is it possible to have totem playing through jack?

More info:

pa...@desktop:~$ sudo dpkg -l | grep totem
[sudo] password for pablo:
ii  libtotem-plparser12
2.28.1-1Totem Playlist Parser library -
runtime files
ii  totem
2.28.2-0ubuntu3 A simple media player for the GNOME
desktop based on GStr
ii  totem-common
2.28.2-0ubuntu3 Data files for the Totem media
player
ii  totem-gstreamer
2.28.2-0ubuntu3 A simple media player for the GNOME
desktop (transitional
ii  totem-mozilla
2.28.2-0ubuntu3 Totem Mozilla plugin
ii  totem-plugins
2.28.2-0ubuntu3 Plugins for the Totem media player


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Re: Examples makes with ubuntu studio

[juan pablo]

Hi Hartmut

On Mon, Apr 27, 2009 at 10:30 PM, Hartmut Noack  wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> juan pablo schrieb:
>> Hi all!!
>>
>> I´m very excited with my wonderful Presonus Firepod and Ubuntu Studio.
>
> The Firepod OK? That is very good news indeed :-)

I can not compare it with other


>
> What Computer? What FW-Chipset? And what Kernel/Settings?

Is a very basic laptop with very simple configurations. Nothing special:
Acer (dual core Genuine Intel(R) CPU  T2300  @ 1.66GHz) with 1Ghz Ram
Ubuntu Studio 8.04 hardy kernel: 2.6.24-23-rt
Settings jack: Frames/period 512 ; Sample Rate: 44100 ; Periods/buffer: 2



>
>>
>> I want to show you my first song record in our local. I know that I
>> can improve much, especially the voice, but the outcome is better than
>> I thought
>>
>> I need more practice!! Much mor practice!
>>
>> Enjoy it at http://www.myspace.com/cub3band
>
> The first 8 or so seconds sound promising but the condamned f...in
> myspace spoils the party with dropouts and the like then
>
> best regs
>
> HZN
>
> -BEGIN PGP SIGNATURE-
> Version: GnuPG v1.4.9 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
>
> iEYEARECAAYFAkn2FeQACgkQ1Aecwva1SWP3DgCdE5yZNrcot1VNrpdGU8AQ0E04
> ts8An0US+9De1eTxUEQoGsfMP42nnVTc
> =Murk
> -END PGP SIGNATURE-
>
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Examples makes with ubuntu studio

[juan pablo]

Hi all!!

I´m very excited with my wonderful Presonus Firepod and Ubuntu Studio.

I want to show you my first song record in our local. I know that I
can improve much, especially the voice, but the outcome is better than
I thought

I need more practice!! Much mor practice!

Enjoy it at http://www.myspace.com/cub3band

You can put your sites to see your results?

Thanks to all and greetings

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Re: Presonus

[juan pablo]

Hi.

About my test with 256/2 into UBStudio and Firepod... dont work. I
dont know why (I hasn´t time to search the problem). And I have to put
the parameters: 64/3 with xruns and some little jumps.

Maybe... I dont have firewire port on my laptop and I bought a pcmcia
with two firewire ports, but... the transfer´s velocity of a pcmcia is
higher than the firewire. I dont know.

When I can test more parameters with more time  I tell you Philip.


Regards



On Sun, Feb 8, 2009 at 5:11 AM, Philip Schleihauf
 wrote:
> Hey Hamish,
>
> I'm running UStudio 4.04, no system updates or anything, no extra
> software; it's not connected to the internet. I guess that's called a
> "vanilla" install I think. I use the freebob driver.
>
> I've had pretty good success getting the firebox to work on a number
> of different machines.
>
> I had a few snags on the current one, but they were caused by the
> firewire card. It was part of a pinnacle (ugh - not mine) video
> capture card. The firewire part of it... worked somewhat. I
> swapped it for a dedicated firewire card (I've heard about bad luck
> with the combo FW/USB cards, mostly from sources running windows, if
> that makes any difference).
>
> That fixed the problem, though, jack does die every so often. Not
> enough to bother me into actually figuring out what is wrong yet; so
> far it's never happened while recording.
>
> If you haven't tried these yet, give them a shot:
> 1) Go to system >> admin >> UStudio controls (something like that, I'm
> not in it now).
> check the one about raw1394 access. I don't know if this actually
> makes any difference, but I did it. Regardless I still have to do the
> next step to get mine to work:
> 2) hit alt-F2 or open a terminal (accessories >> terminal). type in:
> gksu chmod o+rw /dev/raw1394
> you could also put in sudo instead of gksu if you are using a
> terminal. This will let freebob access the firebox from what I
> understand.
>
> That's all I've needed to do to get it working on several different
> machines, both with my own firebox (new as of last summer), and my
> friend's (a few years old).
>
> I don't know if this can make a difference, but all the machines have
> been running on intel processors, one on a mac ppc.
>
> I'll try to test it on some more computers to see if I can find one
> that won't run it.
>
>
> Good luck, hope this helps,
>
> Philip Schleihauf
> p...@adjacentfilms.com
>
>
>
> On Sat, Feb 7, 2009 at 10:56 AM, Hamish Low  wrote:
>> Hi,
>>
>> Great to hear that you're getting those kinds of results with your
>> Firebox, are you using the freebob or ffado drivers?  and on Ustudio
>> 8.04 or 8.10?  and what is your setup?  I haven't really had a
>> satisfactory result with my firebox so far and I've been waiting for the
>> FFADO drivers to improve.  Hopefully someone puts up a deb for Intrepid
>> soon as it's a mystery to me how to compile it from source with all the
>> unresolved dependencies etc...
>>
>> Hamish Low
>>
>>
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Re: Presonus

[juan pablo]

.
>>
>> Mac
>>
>> Original Message:
>> -
>> From: Philip Schleihauf p...@adjacentfilms.com
>> Date: Fri, 6 Feb 2009 12:05:51 -0500
>> To: ubuntu-studio-users@lists.ubuntu.com
>> Subject: Re: Presonus
>>
>>
>> Hey
>>
>> I've got a presonus firebox, which is the little version of the firepod I
>> guess.
>>
>> When I use the RT kernel I don't get any x-runs, unless I set insane
>> parameters on the frames/period and periods/buffer.
>>
>> As far as daisy-chaining goes:
>> I often daisy-chain it with my friend's firebox. It works very well.
>> There's only two problems:
>> 1- sometimes when I start JACK they are out of sync from each other by
>> the amount of latency that jack is set to. So If jack is at 11.6msec,
>> one of them will be at 11.6, but the other one will record at 23.2.
>> This problem is totally random. Sometimes it does this and sometimes it
>> doesn't.
>> 2- The order the connections show up in jack sometimes changes. This
>> can be very annoying if jack crashes in a session, and I have to
>> restart it; often the order will have switched. Then I have to redo
>> all the connections.
>> Presonus claims that daisy-chaining firepods works, but they don't say
>> that fireboxes can be daisy-chained. I think you'd be ok with the
>> firepods.
>>
>> Does anyone know if it is possible to daisy-chain a firebox with a
>> firepod? That's my dream at this point.
>>
>>
>> Philip Schleihauf
>> p...@adjacentfilms.com
>>
>>
>>
>> On Fri, Feb 6, 2009 at 10:47 AM, sue...@empire.net 
>> wrote:
>>>
>>>>Original Message:
>>>>-
>>>>From: juan pablo juanpablo.santac...@gmail.com
>>>>Date: Fri, 6 Feb 2009 10:38:24 +0100
>>>>To: ubuntu-studio-users@lists.ubuntu.com
>>>>Subject: Presonus
>>> 
>>>>I´m new in the list and, i´m very excited with ubuntu studio and my new
>>>>presonus firepod.
>>>>
>>>>All seem to work fine. I get some xrun... maybe i still have to adjust
>>>>some parameter.
>>>>
>>>>Someone in the list with the presonus firepod??
>>>>
>>>>Some example of garage music recording, mixing and mastering with
>>>>ubuntu studio and the presonus?
>>>
>>> Hi Juan,
>>>
>>> I have a firepod. I hope to actually daisy chain two of them eventually
>> but
>>> it appears no one has attempted that in Linux land...
>>>
>>> I am using UBStudio hardy 64bit, so I have the rt kernel. I found if I got
>>> all the latest Jack, ardour, ffado, etc that xruns are very few.
>>>
>>> Mac
>>>
>>> 
>>> mail2web.com - Microsoft(R) Exchange solutions from a leading provider -
>>> http://link.mail2web.com/Business/Exchange
>>>
>>>
>>>
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Presonus

[juan pablo]

Hi all!!

First of all hello and excuse my english, is very basic.

I´m new in the list and i´m very excited with ubuntu studio and my new
presonus firepod.

All seem to work fine. I get some xrun... maybe i still have to adjust
some parameter.

Someone in the list with the presonus firepod??

Some example of garage music recording, mixing and mastering with
ubuntu studio and the presonus?

Thanks to all

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Re: A few problems with Ubuntu Studio

[Juan Pablo Daniel]

First check the connection list of jack (you may use qjackctl -> connections
button) and see if all the programs you want to connect are there. Then,
check the connections, it should be one in the alsa tab wich connects (for
simple example) your soundcard to audacity (this is for you to record) and
in the first tab a connection from audacity to system (this one is for you
to listen the audio)
Good luck with that.

Saludos, Juan Pablo.

On Mon, Dec 1, 2008 at 5:31 PM, John Gardner <[EMAIL PROTECTED]> wrote:

> About 1 and a half years ago I built a new system for the sole purpose
> of setting up a home studio, it has a ASUS M2N4-SLI motherboard, AMD
> 64x2 4800+ CPU and M-Audio Delta 1010lt soundcard.  I bought Studio To
> Go! from Fervent Software, managed to record a few things and then work
> took over so I forgot about until this month when I have some time to
> get back on with things.  Now, because Fervent Software has now gone and
> there is no longer any support for Studio To Go! I installed Unbuntu
> Studio as a replacement, but I'm having a few problems getting it all up
> and running.
>
> I've transferred the JACK config parameters from Studio To Go! to Ubuntu
> Studio but I'm having some problems getting it all working as it was.
> I've managed to get sound out of Audacity through the Delta 1010, but
> only when JACK isn't running, and I can't seem to get anything from the
> mic either into Audacity or Ardour... does anyone have any tips?
>
> Thanks in advance
>
> John
>
>
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Audacity crash

[Juan Pablo Daniel]

Hello:
I installed ubuntu studio and started to work with audacity in a
project of music compilation with a duration of about 45 minutes.
Near the end it crashes, it keeps consuming my CPU and apparently
doing nothing. So i clicked the close window button and asked me to
save the proyect. Yes i said... When i opened again i has orphaned
files, select delete, and my compilation was destroyed :( only some
parts of music with a lot of silences in place of what it supposed to
be.
I started all over and eventually with the same result.
Running audacity in debian stable i been able to finish my work with
no problems, so i guess the problem may be with the version of
audacity of ubuntu studio. I did exactly the same steps on debian with
no hungs.

Just reporting, i got mad about loosing 3 hours or more..


Saludos, Juan Pablo.

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