Hi all,
I am trying to understand the precision of htimestamp for samples captured with
a kernel real-time, and I am not sure if I understood well, because I have
found old informations togheter with new informations and I've the doubt that
something changed. I am interested in this because o
rj w wrote:
> $ arm-linux-gnueabihf-gcc latency.c -o latency.o -lasound
>
> I know '-l' means linking a library, but I don't see a library named asound
> (or sound) in the folder alsa-lib-1.0.29 (in my download, not 1.0.26).
You should find libasound.a in /usr/arm-linux-gnueabihf/lib/
(or whereve
Hi,
I just begin to use ALSA lib. From a forum post, I get the usage:
an@tata-HP-Elite-7100-Microtower-PC:~/alsa-lib-1.0.26/test$
arm-linux-gnueabihf-gcc latency.c -o latency.o -lasound
I know '-l' means linking a library, but I don't see a library named asound (or
sound) in the folder alsa-li
Thierry GAYET (AMA) wrote:
> Actually, i am using the alsa dummy driver for the linux kernel.
>
> Indeed, for a specific proof of concept, i am trying to use an audio
> loopback driver as virtual microphone.
> $ modinfo snd-dummy
> description:Dummy soundcard (/dev/null)
That driver is not he
Hi,
Actually, i am using the alsa dummy driver for the linux kernel.
Indeed, for a specific proof of concept, i am trying to use an audio
loopback driver as virtual microphone.
An audio stream is injecting into the dummy using the ffmpeg tool and
another instance of the tool get the sound back
Dolevo wrote:
> Clemens Ladisch googlemail.com> writes:
>> The silence threshold must be less than the buffer size; other values
>> would not make sense.
>>
>> Why are you trying to set the silence threshold to the boundary value?
>
> I have been assigned to a work which has already been developed
Clemens Ladisch googlemail.com> writes:
>
> Dolevo wrote:
> > Can you also tell me if it is normal to see the same number in the
> > threshold?
>
> If you have set the threshold to this number, then it is normal to see
> this number.
>
> > snd_pcm_sw_params_set_silence_threshold(handlePlayback
Dolevo wrote:
> Can you also tell me if it is normal to see the same number in the
> threshold?
If you have set the threshold to this number, then it is normal to see
this number.
> snd_pcm_sw_params_set_silence_threshold(handlePlayback, params, boundary);
>
> returns -22 (invalid argument) error
Clemens Ladisch googlemail.com> writes:
>
> Jay wrote:
> > snd_pcm_sw_params_get_boundary(params, &boundary);
> >
> > I see a huge number like "7944349742681554944" in boundary after this call.
> > Is this normal?
>
> Yes.
>
> > Can you comment on the correctness of these values?
>
> It's jus
Jay wrote:
> snd_pcm_sw_params_get_boundary(params, &boundary);
>
> I see a huge number like "7944349742681554944" in boundary after this call.
> Is this normal?
Yes.
> Can you comment on the correctness of these values?
It's just a special value much larger than the buffer size (and happens
to
Hi,
snd_pcm_uframes_t boundary;
snd_pcm_sw_params_get_boundary(params, &boundary);
I see a huge number like "7944349742681554944" in boundary after this call.
Is this normal?
I see exactly the same huge number when I use this boundary to set the
threshold as in the following code part:
snd_pcm
Le Tue, 26 Jun 2012 08:56:01 -0700 (PDT),
Bill Unruh a écrit :
> On Tue, 26 Jun 2012, Dominique Michel wrote:
>
> > Le Mon, 25 Jun 2012 14:08:07 -0400,
> > Jerry Geis a écrit :
> >
> >>> The best things to do would be to use something like a dbx, a
> >>> feedback suppressor. The problem is than
I didn't catch the beginning of this thread? Just thought I'd add a comment:
some microphones (e.g. cardioid) are designed to shape the gain/response, by
angle, which helps to suppress feedback, e.g. from the back of the mic.
Depending on how you hold the mic, it is possible to block off some of
On Tue, 26 Jun 2012, Dominique Michel wrote:
Le Mon, 25 Jun 2012 14:08:07 -0400,
Jerry Geis a écrit :
The best things to do would be to use something like a dbx, a
feedback suppressor. The problem is than they are expensive pieces
of hardware. The principle is simple: above a given (adjustabl
Le Mon, 25 Jun 2012 14:08:07 -0400,
Jerry Geis a écrit :
> > The best things to do would be to use something like a dbx, a
> > feedback suppressor. The problem is than they are expensive pieces
> > of hardware. The principle is simple: above a given (adjustable)
> > input level, you get an output
I ran into this:
http://arunraghavan.net/2011/08/hello-hello-hello/
Perhaps I will give pulseaudio a try with the module-echo-cancel.
Thanks all.
Jerry
--
Live Security Virtual Conference
Exclusive live event will cove
On Mon, 25 Jun 2012, Doug wrote:
> On 06/25/2012 08:34 AM, Jerry Geis wrote:
>> We are using a USB webcam with integrated USB mic.
>> When we use the USB microphone the volume level is really good
>> and we dont have to be right up to the micrphone, we can be some
>> distance away and still have g
There must be 40 gstreamer files available on my PCLINUX repo,
maybe 60% of them installed. I do not have gst-launch listed.
Would appreciate a bit further information. Also, do you run this
from a command line? I don't have any gstreamer files listed
in my menu.
--doug
Doug
I do run from
On 06/25/2012 04:36 PM, Jerry Geis wrote:
>> I don't haave an answer, I have a question: What program are you using
>> to get video and audio from your webcam? I have run Kamoso, and
>> all I get is video, even tho it supposedly has audio. If you use Kamoso,
>> then what are you doing to get soun
> I don't haave an answer, I have a question: What program are you using
> to get video and audio from your webcam? I have run Kamoso, and
> all I get is video, even tho it supposedly has audio. If you use Kamoso,
> then what are you doing to get sound? (I know the mic works.)
>
> --doug
Doug
I
On 06/25/2012 08:34 AM, Jerry Geis wrote:
> We are using a USB webcam with integrated USB mic.
> When we use the USB microphone the volume level is really good
> and we dont have to be right up to the micrphone, we can be some
> distance away and still have good level audio.
> Problem is over time
> The best things to do would be to use something like a dbx, a feedback
> suppressor. The problem is than they are expensive pieces of hardware.
> The principle is simple: above a given (adjustable) input level, you
> get an output level with a gain of 1, and under this given input level,
> you ge
Le Mon, 25 Jun 2012 08:34:06 -0400,
Jerry Geis a écrit :
> We are using a USB webcam with integrated USB mic.
> When we use the USB microphone the volume level is really good
> and we dont have to be right up to the micrphone, we can be some
> distance away and still have good level audio.
> Pro
We are using a USB webcam with integrated USB mic.
When we use the USB microphone the volume level is really good
and we dont have to be right up to the micrphone, we can be some
distance away and still have good level audio.
Problem is over time we get feedback that keeps building up and getting
Le Mon, 26 Dec 2011 10:18:58 +0100 (CET),
"iw3...@tiscali.it" a écrit :
> Hi all,
>
> I have a simple problem with my application using the alsa lib for
> audio but I cannot find
>
> any simple and direct solution...
>
> Is it possible to open a CAPTURE stream and get access to the
> last, sa
Hi all,
I have a simple problem with my application using the alsa lib for audio but I
cannot find
any simple and direct solution...
Is it possible to open a CAPTURE stream and get access to the
last, say, 4 seconds of samples?
This means I want to open the capture 'now' and seek back to -4
s
Hello Peng!
Well the part of .asoundrc I posted should work for your card. I have a
delta 1010LT, but regarding JACK it's not so complicated.
the only thing you need to do, to make this configuration work is installing
JACK. The JACK Audio Connection Kit. It should be shipped with all Linux
Dear Julien:
Thank you very much for your detailed suggestions! However I tried
them but they did not work for me :(
Since I am really a newbie about sound management of ALSA I can hardly
understand your configration, so
what I could do was just to paste them into my .asoundrc. I am reading
manual
Hi!
I never used virtualbox or whatever. I guess it is seem kind of virtual
machine like vmware?
I can help you with mplayer a bit though. It's running on my system and it
works just fine. Nowadays I like to have an easy life though and I use JACK.
But in the old days I just did this:
mp
Hi everyone, sorry for bothering.
My system kernel is 2.6.29 and using ALSA 1.0.19.
I am using an m-audio 2496 sound card(ICE1712) and it works fine under ALSA
except for one issue: It seems that I met problems with PCM very often. For
example when I tryed to run virtualbox with "ALSA Audio Driv
tis 2008-12-09 klockan 18:47 +0100 skrev Mikael Larsson:
> tis 2008-12-09 klockan 01:03 +0100 skrev Nigel Henry:
> > On Monday 08 December 2008 21:12, you wrote:
> > > http://www.alsa-project.org/db/?f=cc5746b91bd1b83beb0d05b4b361fbd311061792
> > >
> > > mån 2008-12-08 klockan 20:42 +0100 skrev Nig
tis 2008-12-09 klockan 01:03 +0100 skrev Nigel Henry:
> On Monday 08 December 2008 21:12, you wrote:
> > http://www.alsa-project.org/db/?f=cc5746b91bd1b83beb0d05b4b361fbd311061792
> >
> > mån 2008-12-08 klockan 20:42 +0100 skrev Nigel Henry:
> > > On Monday 08 December 2008 19:19, Mikael Larsson wr
On Monday 08 December 2008 21:12, you wrote:
> http://www.alsa-project.org/db/?f=cc5746b91bd1b83beb0d05b4b361fbd311061792
>
> mån 2008-12-08 klockan 20:42 +0100 skrev Nigel Henry:
> > On Monday 08 December 2008 19:19, Mikael Larsson wrote:
> > > Hello,
> > > I have an 'ASUS A7U' laptop with a 'Real
On Monday 08 December 2008 19:19, Mikael Larsson wrote:
> Hello,
> I have an 'ASUS A7U' laptop with a 'Realtek ALC660-VD' integrated
> soundcard. A few nights ago I upgraded my system from 'fedora 8' to
> 'fedora 10' and to make a long story short my system dosen't have
> working audio any more.
>
Hello,
I have an 'ASUS A7U' laptop with a 'Realtek ALC660-VD' integrated
soundcard. A few nights ago I upgraded my system from 'fedora 8' to
'fedora 10' and to make a long story short my system dosen't have
working audio any more.
The soundcard gets detected and sound seams to by playing but there
On 08-07-08 16:54, stan wrote:
> Owen.yan wrote:
>> And another question: can alsa mix its playback and capture data? If
>> can, which tool does it use?
>>
> You have to tell it to do this through some external means. In a recent
> post, one suggestion was
>
> arecord -f | aplay
>
> arecord
Owen.yan wrote:
>
> Dear sir:
>
Hi Owen,
This is a mailing list so there really isn't an individual person you
are contacting. I don't represent
alsa, just giving advice as I can.
>
> Does alsa has any tools that can reduce music’s sample rates or
> increase it.
>
alsa includes the dmix plugin by
Hello!
Do you want to reduce/increase the samplerate live? If so alsa just has
plug
devices. Those devices just convert the audio sent to it into one desired
samplingrate, that of the soundcard. It can work like this:
aplay -Dplughw:0,0 file.wav
or
aplay -Dplug:default file.wav
You can c
Hello,
I am planning to buy an M-Audio Revolution 5.1 sound card.
I googled around to find out whether it is supported well by ALSA.
I found a few pages saying that everything works except
for the headphones output.
Does anybody know if this is still the case? The pages may be
a bit old, and I ca
Hi, I'm running Kubuntu Edgy Eft on my Dell Inspiron 1300, and I just
upgraded to the latest stable alsa release because I saw that the changelog
mentioned that the mic problem for STAC92xx codec was finally fixed.
Unfortunately, mine is still not working. I had found a workaround to this
problem
On Fri, 2004-03-05 at 11:14, Clemens Ladisch wrote:
> Matt Kowske wrote:
> > On Wed, 2004-03-03 at 02:59, Clemens Ladisch wrote:
> > > How many jacks does your mainboard have? How are they configured in
> > > Windows?
> >
> > The jacks, which CAN be shared, are not. My mainboard came with an
> >
Matt Kowske wrote:
> On Wed, 2004-03-03 at 02:59, Clemens Ladisch wrote:
> > How many jacks does your mainboard have? How are they configured in
> > Windows?
>
> The jacks, which CAN be shared, are not. My mainboard came with an
> optional audio bracket you can install and turn off the jack shari
I mentioned that I'm not using jack sharing right now, although my
motherboard supports it. With the use of a jumper, I set the center/sub
and rear outputs to be on a seperate bracket, which i installed where a
PCI card would go and plugged into a spot on the motherboard. This
works in windows no
On Wednesday 03 March 2004 11:46, Matt Kowske wrote:
> It does not. I can mute or unmute the PCM control, but not control it's
> volume. Also, controlling the master volume does nothing. I can change
> the volume with the xmms mixer, but I beleive that is because it uses
> OSS and not the ALSA m
On Wed, 2004-03-03 at 02:59, Clemens Ladisch wrote:
> If your codec supports jack sharing, the default configuration of the
> other jacks will be line in and mic in. You have to set the "Line-In
> as Surround" mixer control to enable the surround output.
>
> It seems the driver always enables Cen
It does not. I can mute or unmute the PCM control, but not control it's
volume. Also, controlling the master volume does nothing. I can change
the volume with the xmms mixer, but I beleive that is because it uses
OSS and not the ALSA mixer controls. Keep in mind too that I am using
intel8x0 dri
Matt Kowske wrote:
> Does the intel8x0 driver support surround sound?
Yes.
> I unmuted the appropriate channels in alsamixer, but still no
> sound out of anything but the two front speakers.
If your codec supports jack sharing, the default configuration of the
other jacks will be line in and mic
Matt Kowske said:
> Hello all,
>
> This is my first post, as this is the first trouble I've had with ALSA. My
> problem is I just got a new computer. It's a MSI 865PE Neo2 mobo with an
> onboard sound chip. The manual says it is "6 channel software audio codec
> C-Media 9739A, compliance with AC
Hello all,
This is my first post, as this is the first trouble I've had with ALSA. My
problem is I just got a new computer. It's a MSI 865PE Neo2 mobo with an
onboard sound chip. The manual says it is "6 channel software audio codec
C-Media 9739A, compliance with AC97 v2.2 spec". So first i tr
I'm trying to set up my brand new Revolution 7.1 for multichannel
output. What I'd like to do is:
1) Be able to play back surround sound movies/music through all
channels (5.1 or 7.1).
2a) Be able to play back stereo tracks through all channels (route
left to front left and rear left and cent
Hi Jaroslav Kysela,
On Sun, 23 Nov 2003 12:32:38 +0100 (CET) Jaroslav Kysela <[EMAIL PROTECTED]> wrote:
> On Sun, 23 Nov 2003, wwp wrote:
>
> > is it necessary to recompiled sound-related stuff like esound, or xmms
> > when upgrading to ALSA 1.0.0pre? Or does 1.0.0 breaks 0.9.0 library/headers
On Sun, 23 Nov 2003, wwp wrote:
> Hi!
>
>
> is it necessary to recompiled sound-related stuff like esound, or xmms
> when upgrading to ALSA 1.0.0pre? Or does 1.0.0 breaks 0.9.0 library/headers
> compat?
The binary compatibility is kept (so if you have compiled binaries against
old library, they
Hi!
is it necessary to recompiled sound-related stuff like esound, or xmms
when upgrading to ALSA 1.0.0pre? Or does 1.0.0 breaks 0.9.0 library/headers
compat?
Regards,
--
wwp
---
This SF.net email is sponsored by: SF.net Giveback Program.
Hi all, I've tried contacting the maintainer of the project (Andy), but
he never bothered to reply, so now I am taking this question to all of
you out there that might have had exposure to this interesting library.
Does anyone know what is the current status of the whole project anyhow?
Any help on
> Ivica Bukvic wrote:
>
> ... stumbled across the following site:
>
> http://old.lwn.net/1999/0916/a/latency.html
>
> Admittedly, it's quite old but that, if anything speaks only in Linux's
> favor in terms of its pro-audio readiness. At any rate, I was checking
> out the benchmark data and was won
Hi all,
I've had an interesting discussion with a professor and a distinguished
member of the electroacoustic music community regarding audio latencies
which made me realize that I did not understand the issue in its
entirety. Hence, I looked around the net in order to educate myself.
I soon stum
hello list,
i just got alsa up and running on a powerbook g3 500 (using debian sid,
2.4.22 kernel) and am having some difficulties getting the usb soundcard
to load. i ran ./configure for all soundcards, figuring i'd be able to
load and unload whatever module i needed. by default, it seems alsa
lo
Hi everybody, i just want to know a little thing...
did anybody successfully configured rear channels with via 8235 or via 8233 ... with
red-hat, suse, debian ... with any distribution???
Please, i need to know this...
TIA,
--
Lucas Lain
Particular
[EMAIL PROTECTED]
G'day mate!
I'm pretty sure that the 5.1 should be okay, and I'd
suggest using the source code for ALSA and building it
from there, it's not too hard, unless there is kernel
header problems, in which case you'd have some work to
do. ;) Anyway, with source built versions of ALSA, you
can be running
Hello,
I had a problem with my on-board sound (wasn't able to solve it) and
want to buy an additional PCI sound card. The vendor of my computer
does not seem to be well informed about linux compatible sound cards
(he told me that the Soundblaster 128 and Live are no longer available,
but suppo
Title: question
Hello there,
Can someone help me? I have the following chipset.
440MX
Cs4201.
Can you tell be what I need to install the sound. I try the 440MX detail off the web site and it did not work.
Thanks
Thomas Boore
Datalux Technical Support Representative
155 Aviation Dri
Hello:
Wow, after several days and attempts to compile and install various
versions of the drivers, alsa-drivers 0.9.0rc3 worked for me. (neither
alsa-drivers 0.9.0rc2 or the 0.5.10b drivers would work for me. "Stable"
is mis-leading to a newbie).
The mixer and audio, or pcm, and midi work for m
Alan Miles wrote:
> All,
>
> I am new to alsa, so please be patient with me - I had to use alsa to get
> here xawtv using an ATI radeon video card.
>
> I have successfully implemented the following on my Slackware 8.1 Linux
> machine, running the 2.4.19 kernel, using the following:
>
> alsa-dri
bject: Re: [Alsa-user] Question about Alsa and Soundbaster Live!
Platinum and the spdif input
On Mon, Aug 12, 2002 at 06:25:29PM -0500, Mark Rages wrote:
>
> cdparanoia 1- | play -t wav -
>
should be
cdparanoia 1- -- - | play -t wav -
--
On Mon, Aug 12, 2002 at 06:25:29PM -0500, Mark Rages wrote:
>
> cdparanoia 1- | play -t wav -
>
should be
cdparanoia 1- -- - | play -t wav -
---
This sf.net email is sponsored by: Dice - The leading online job board
for high-tech professio
On Mon, Aug 12, 2002 at 07:53:46PM -0300, Alan Miles wrote:
> All,
>
> I am new to alsa, so please be patient with me - I had to use alsa to get
> here xawtv using an ATI radeon video card.
>
> I have successfully implemented the following on my Slackware 8.1 Linux
> machine, running the 2.4.19
All,
I am new to alsa, so please be patient with me - I had to use alsa to get
here xawtv using an ATI radeon video card.
I have successfully implemented the following on my Slackware 8.1 Linux
machine, running the 2.4.19 kernel, using the following:
alsa-driver-0.9.0rc2
alsa-lib-0.9.0rc2
alsa-
Hi,
I am a newbie in recording sound on a pc.
So if this is not the place please for my question let me know.
The problem:
I am using Suse 8.0. and install alsa, alsamixergui and braodcast2000.
The only thing want to do is recording voice. I play a while with the program and I
was able to reco
Hi all,
I've been trying to get the Crystal Sound (CS4205) notebook (Dell
Inspiron 8200) soundcard to work with both OSS and Alsa (although I
would prefer to get Alsa working rather than OSS), but it seems that
both drivers have insufficient info about this card to get it to work. I
did get it to
Hi all,
I've been trying to get the Crystal Sound (CS4205) notebook (Dell
Inspiron 8200) soundcard to work with both OSS and Alsa (although I
would prefer to get Alsa working rather than OSS), but it seems that
both drivers have insufficient info about this card to get it to work. I
did get it to
Hi,
I've had an ESS1938 soundcard which works perfectly except in quake3. I could play
more than 1 sound file at the same time.
Now I've buyed a not so cheap soundcard, a CS4624. Everything works wonderful but when
I try to play more than 1 sound file at the same time I get a "device buisy"
Why?
On Thu, 4 Apr 2002, Kuball, Martin wrote:
> On Thu, 4 Apr 2002 Joy Ping wrote:
> >On Thu, 4 Apr 2002, Kuball, Martin wrote:
> >
> >> Can somebody explain to me the difference between igain and line settings
> >
> >igain = Incoming gain, line = Line out
> >
> >> for capturing. What are they doing
On Thu, 4 Apr 2002 Joy Ping wrote:
>On Thu, 4 Apr 2002, Kuball, Martin wrote:
>
>> Can somebody explain to me the difference between igain and line settings
>
>igain = Incoming gain, line = Line out
>
>> for capturing. What are they doing with respect to the hardware?
>
Yes, but what is going on i
On Thu, 4 Apr 2002, Kuball, Martin wrote:
> Can somebody explain to me the difference between igain and line settings
igain = Incoming gain, line = Line out
> for capturing. What are they doing with respect to the hardware?
>
> Martin Kuball
>
>
> ___
Can somebody explain to me the difference between igain and line settings
for capturing. What are they doing with respect to the hardware?
Martin Kuball
___
Alsa-user mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/alsa-use
Hi all!
I have a quick question regarding the latest CrystalClear soundcard that
is found in Dell Inspirons and other laptops (model name CS4205).
My understanding is that the maker of this DSP chip is rather Linux
friendly, so my question is does the driver for this soundcard (which I
believe i
]
Subject: [Alsa-user] Question regarding current ESS Maestro 3M soundcard
support
Hi all!
I have an Dell Inspiron 8K and my question is whether the current
Maestro M3 chip is fully supported or does it currently only furnish
SB16 compatibility mode (I might be talking nonsense here, but this is
Hi all!
I have an Dell Inspiron 8K and my question is whether the current
Maestro M3 chip is fully supported or does it currently only furnish
SB16 compatibility mode (I might be talking nonsense here, but this is
what I heard a while ago, or something like it and my understanding is
that the cur
r card settings.
>
>you can also do a
>
>alsactl -f /etc/asound.conf restore
>
>>-Original Message-
>>From: Dan Frost [mailto:[EMAIL PROTECTED]]
>>Sent: February 8, 2002 5:43 AM
>>To: [EMAIL PROTECTED]
>>Subject: Re: [Alsa-user] questi
IL PROTECTED]
> Subject: Re: [Alsa-user] question about asound.conf
>
>
> Dear all,
>
> I have also had some problems with asound.conf - there isn't
> one on my machine.
> I'm running a Hoontech with an Envy?? chip (can't remember
> the numbers). my
> prob
Dear all,
I have also had some problems with asound.conf - there isn't one on my machine.
I'm running a Hoontech with an Envy?? chip (can't remember the numbers). my
problem, more generally, is that i don't know, and can't find out, the syntax
for alsactl. Are there any resources for this that i
Hi !
I have some problems configuring alsa. I'm using a Hercules Gamesurround
Fortissimo II with a CS4236 chip. After starting the tool alsaconf, the
correct chip is detected. But when alsaconf tries to load the driver,
the following error message appears:
Loading driver:
Starting sound driver
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