Re: wanted Ubuntu Studio hardware advice
Am 27.02.2011 15:30, schrieb Ralf: Ancillary to Mike Holstein, IMO for audio it's important that the graphics is passiv, no fan, no noise. Even for 3D animation any slow 3D support is fast enough. The power supply should have a large and slow fan. Take care to buy silent HHDs. I've got a question too. I'm searching for an audio device. I've got two Terratec EWX 24/96 PCI cards and I don't like the muddy sound. For sure, it might not only be the cards that produce this sound, I guess it also has to do with issues for Linux audio, but OTOH those issues might have to do with a less good driver, jackd or something else for Envy24 cards, I dunno. Every envy24-based card I used in the last 9 years under Linux worked perfectly well for me. They need to be set up with a somewhat complicated mixer though (envy24control) but once done, the cards provide at least the same sound-quality as my Presonus Firebox, with a homeopathic lesser distortion and at least the same dynamics/headroom. As long as ALSA and Jack are concerned, the ICE1712-driver for these cards is the best one I every used under Linux. All features available, perfectly stable, latency below 5ms is no problem. Only Pulse Audio does not work well with ICE1712... If you want something better, go for a Hammerfall, I dare to doubt, that any lesser beast will deliver listenable better results. best regs HZN Perhaps the audio device should cost less than 1000,- EUR or better less, than 500,- EUR. I would prefer 4 or more IOs, but just 2 IOs would be ok too. The most important things to me are - no issues with Linux - a good sound quality, at least as good as good consumer hifi equipment - very, very, low latency to fight jitter for MIDI recordings - if possible 4 IOs or more, but 2 IOs are ok, if the sound and handling is ok -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Hello Ralf! Firstly thank you for all your information and suggestions for all your mails! >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from the > repositories seems to be stable since I > > - build a kernel-rt by the attached script rt4us_[snip] > (Note: for running the kernel-rt the package rtirq-init needs to be > installed and the user has to be member of the group > 'audio', /etc/security/limits.d is set up >automatically by the packages) > If you're booted to the current kernel 2.6.35-25-generic, you only > need to push enter all the times. Does this script build the same kernel with the one if I just run sudo apt-get install linux-rt linux-headers-rt ? I mean, is this script essential for my real-time performance? Is this a better kernel for audio production? Thanks once again! Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Sound devices - was: wanted Ubuntu Studio hardware advice
Hi :) I won't capture another ones thread, especially because I'm interested in an audio device only. On Sun, 2011-02-27 at 09:38 -0500, Mike Holstein wrote: > On Sun, Feb 27, 2011 at 9:30 AM, Ralf > wrote: [snip] > > - no issues with Linux > > - a good sound quality, at least as good as good consumer > > hifi equipment > > - very, very, low latency to fight jitter for MIDI > > recordings > > - if possible 4 IOs or more, but 2 IOs are ok, if the sound > > and handling is ok > [snip] > thats great you are looking for an interface upgrade.. i have a > presonus firepod, which is out of the box, and not bad at all (i would > like better preamps)... the upgrade im looking into is > http://www.focusrite.com/products/saffire/saffire_pro_40/ lots of bang > for the buck, and minimally fiddly to setup... Wow, the price is ok. http://www.thomann.de/gb/focusrite_saffire_pro_40.htm "High Quality 24-bit/96kHz Firewire Interface Features high quality A-D / D-A conversion and JetPLL™ jitter elimination technology; pristine audio quality and reliable synchronisation are guaranteed." But is Linux compatibility guaranteed too? Is the sound ok? Btw. since month everything is connected to compare the analog IOs of my sound cards with the digital IOs connected to one of my DAT recorders. At least the D/A, A/D audio quality of my consumer DAT Sony DTC-670 is at good enough hifi quality to fit to my needs. I wonder if this could be a temporary solution regarding to the sound quality. On Sun, 2011-02-27 at 15:49 +0100, Victor henri wrote: [snip] > I'm using a Fast Track Audio Pro from M-Audio and i'm happy with it. I have less than 5 msec latency Hm? USB = jitter for MIDI, is it perfect for audio? I could keep my audio + MIDI PCI cards for MIDI, even if it might be complicated to use several audio devices at the same time. http://www.thomann.de/gb/maudio_fast_track_pro.htm I could go without mic pre-amps, phantom power etc., because I'll connect the card to an analog mixer. Cheers! Ralf > > -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Virtual MIDI CC faders
I need virtual MIDI CC faders, wheels, knobs. Is there an app for Linux? Cheers! Ralf -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: wanted Ubuntu Studio hardware advice
> Subject: Re: wanted Ubuntu Studio hardware advice > From: ralf.mard...@alice-dsl.net > To: ubuntu-studio-users@lists.ubuntu.com > Date: Sun, 27 Feb 2011 15:30:22 +0100 > > Ancillary to Mike Holstein, IMO for audio it's important that the > graphics is passiv, no fan, no noise. Even for 3D animation any slow 3D > support is fast enough. > > The power supply should have a large and slow fan. > Take care to buy silent HHDs. > > I've got a question too. I'm searching for an audio device. > > I've got two Terratec EWX 24/96 PCI cards and I don't like the muddy > sound. For sure, it might not only be the cards that produce this sound, > I guess it also has to do with issues for Linux audio, but OTOH those > issues might have to do with a less good driver, jackd or something else > for Envy24 cards, I dunno. > > Perhaps the audio device should cost less than 1000,- EUR or better > less, than 500,- EUR. I would prefer 4 or more IOs, but just 2 IOs would > be ok too. The most important things to me are > > - no issues with Linux > - a good sound quality, at least as good as good consumer hifi equipment > - very, very, low latency to fight jitter for MIDI recordings > - if possible 4 IOs or more, but 2 IOs are ok, if the sound and handling > is ok I'm using a Fast Track Audio Pro from M-Audio and i'm happy with it. I have less than 5 msec latency Victor > > > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: wanted Ubuntu Studio hardware advice
On Sun, Feb 27, 2011 at 9:30 AM, Ralf wrote: > Ancillary to Mike Holstein, IMO for audio it's important that the > graphics is passiv, no fan, no noise. Even for 3D animation any slow 3D > support is fast enough. > > The power supply should have a large and slow fan. > Take care to buy silent HHDs. > > I've got a question too. I'm searching for an audio device. > > I've got two Terratec EWX 24/96 PCI cards and I don't like the muddy > sound. For sure, it might not only be the cards that produce this sound, > I guess it also has to do with issues for Linux audio, but OTOH those > issues might have to do with a less good driver, jackd or something else > for Envy24 cards, I dunno. > > Perhaps the audio device should cost less than 1000,- EUR or better > less, than 500,- EUR. I would prefer 4 or more IOs, but just 2 IOs would > be ok too. The most important things to me are > > - no issues with Linux > - a good sound quality, at least as good as good consumer hifi equipment > - very, very, low latency to fight jitter for MIDI recordings > - if possible 4 IOs or more, but 2 IOs are ok, if the sound and handling > is ok > > > hehe, yeah, ralph, in the original thread i suggested looking into home theatre PC cases since the needs are similar (powerful yet quiet)... thats great you are looking for an interface upgrade.. i have a presonus firepod, which is out of the box, and not bad at all (i would like better preamps)... the upgrade im looking into is http://www.focusrite.com/products/saffire/saffire_pro_40/ lots of bang for the buck, and minimally fiddly to setup... > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > -- MH http://opensourcemusician.libsyn.com/ http://wnclug.ourproject.org/ -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: wanted Ubuntu Studio hardware advice
Ancillary to Mike Holstein, IMO for audio it's important that the graphics is passiv, no fan, no noise. Even for 3D animation any slow 3D support is fast enough. The power supply should have a large and slow fan. Take care to buy silent HHDs. I've got a question too. I'm searching for an audio device. I've got two Terratec EWX 24/96 PCI cards and I don't like the muddy sound. For sure, it might not only be the cards that produce this sound, I guess it also has to do with issues for Linux audio, but OTOH those issues might have to do with a less good driver, jackd or something else for Envy24 cards, I dunno. Perhaps the audio device should cost less than 1000,- EUR or better less, than 500,- EUR. I would prefer 4 or more IOs, but just 2 IOs would be ok too. The most important things to me are - no issues with Linux - a good sound quality, at least as good as good consumer hifi equipment - very, very, low latency to fight jitter for MIDI recordings - if possible 4 IOs or more, but 2 IOs are ok, if the sound and handling is ok -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: wanted Ubuntu Studio hardware advice
On Sun, Feb 27, 2011 at 8:30 AM, Mike Holstein wrote: > > On Feb 27, 2011 8:01 AM, "Peter Nodiff" > wrote: > > > > Wanted: Ubuntu Studio hardware advice to build a PC (from New Egg or > similar) especially video card... Pete > > > > -- > > Ubuntu-Studio-users mailing list > > Ubuntu-Studio-users@lists.ubuntu.com > > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > > Intel > actually, to continue the thread "To build a PC, what hardware to run Ubuntu Studio fast without overspending?", intel is usually well supported out of the box... you dont really need a crazy fast graphics card for any of the audio stuff, and most of the video stuff too id say... i would avoid VIA... if it were me, i would look at my needs, for example, do i want 3D support out of the box, with my workflow is a proprietary driver OK (proprietary drivers with realtime kernels can be problematic), do i need dual monitors?... i would find a list of devices at newegg or whatever, and start googling... you dont need to google "ubuntustudio NVIDIA Quadro NVS 3100M"... searching "ubuntu NVIDIA Quadro NVS 3100M" will return more results... i think most of us use free-cycled gear, so you might not find a lot of folks with experience with the latest and greatest in graphics cards... folks who need the fanciest newest graphics cards are typically gamers, and the gaming community is arguably only recently able to consider linux for gaming... if you are waiting for someone to link a card from newegg and say "get this one", that might take a while... but, if you find a particular device, you might find someone with experience using it, or be able to find a kernel dev online in the IRC, and ask how the support is... -- MH http://opensourcemusician.libsyn.com/ http://wnclug.ourproject.org/ -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 14:38 +0100, Victor henri wrote: > > > > Date: Sun, 27 Feb 2011 11:47:24 +0100 > > Subject: Re: Kubuntu 10.10 and real-time kernel > > From: abog...@ubuntu.com > > To: ubuntu-studio-users@lists.ubuntu.com > > > > Hi, > > > > 2011/2/26 Hartmut Noack : > > [...] > > > Kernel and System-Setup are really important. If a capable > basic-system is > > > set up carefully, the desktop-system does not matter much. > > [...] > > > > I agree, definitely. > > > > Please note that Ubuntu Studio don't offer that level of setup at > the moment. > > Hello, > > Could you please be more specific on what is missing in Ubuntu Studio > to get that level of setup? > > This what I know already : > > - Ubuntu Studio already automatically configure > the /etc/security/limits.d/audio.conf by adding the lines : > > @audio - rtprio 95 > @audio - memlockunlimited rtprio should be 99 and I bet it is 99, there should be an additional file: edubuntu@edubuntu:/home/music/edubuntu$ cat /etc/security/limits.d/audio.conf # Provided by the jackd package. # # Changes to this file will be preserved. # # If you want to enable/disable realtime permissions, run # #dpkg-reconfigure -p high jackd @audio - rtprio 95 @audio - memlockunlimited #@audio - nice -19 edubuntu@edubuntu:/home/music/edubuntu$ cat /etc/security/limits.d/ubuntustudio-audio-rtprio.conf # Installed by the ubuntustudio-audio package @audio - rtprio 99 edubuntu@edubuntu:/home/music/edubuntu$ > > You just have to add yourself in the 'audio' group manually. > > - However, there seem to be a problem if you use a generic kernel in > Ubuntu 10.10, because in Ubuntu 10.10 the "RT_GROUP-SCHED" option in > the kernel is activated. As far as I understand, this means that doing > the previous manipulation (ie configuring > the /etc/security/limits.d/audio.conf and adding yourself in the audio > group) won't allow real-time erformance for JAck... Yes, RT_GROUP-SCHED has to be not set. > > "The RT_GROUP_SCHED option overrides everything that may have been > configured in limits.conf and makes it very complex for regular users > to get access to the realtime scheduling that JACK works best with. " > > This comes from Jack-audio-connection-kit FAQ > http://jackaudio.org/linux_group_sched > > Ok so the only option is to use a precompiled real-time kernel, or a > preemnt kernel having that RT_GROUP_SCHED option disabled (for example > in Alessio Bogani's ppa), (or a "home-compiled" kernel, which is what > i'm doing), or use other solutions like it is said in the jack FAQ > page I mentioned . Or even a generic with RT_GROUP-SCHED disabled. > > - The rtirq-init script has to be used; Not necessarily, it doesn't have much effect, but it can't harm to use it. > > Is there something else in Ubuntu Studio that has to be set up? You e.g. can run ALSA MIDI latency test and compare settings, e.g. make an USB port head of the USB ports by editing rtirq and see if latency/jitter will decrease etc. ... Remove any unneeded deamon, AppAmor, Firewalls etc. ... I didn't do that for 10.10, but remember a DAW isn't a washing machine, multi-user server or toaster, it's a DAW. > > Thank you very much. > > Victor > > > > > > Ciao, > > Alessio > > > > -- > > Ubuntu-Studio-users mailing list > > Ubuntu-Studio-users@lists.ubuntu.com > > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 15:24 +0200, Alexandros Bitoulas wrote: > Στις Κυρ 27 Φεβ 2011 12:47:24 Alessio Igor Bogani γράψατε: > > Hi, > > > > 2011/2/26 Hartmut Noack : > > [...] > > > > > Kernel and System-Setup are really important. If a capable basic-system > > > is set up carefully, the desktop-system does not matter much. > > > > [...] > > > > I agree, definitely. > > > > Please note that Ubuntu Studio don't offer that level of setup at the > > moment. > > > > Ciao, > > Alessio > > Hello Alessio! > > [to Hartmut also:] So, what what can I do to set-up my system "carefully", > What do you mean by that? > > I have just upgraded my vanilla Ubuntu 10.04 to the vanilla Kubuntu 10.10 and > then added from the repositories all the audio applications that I needed. Is > this ok? I can't say anything about the version update, but installing audio packages is ok. At the moment you should avoid to choose 3rd party packages to keep your Linux stable and don't forget to backup your Linux. > > [(maybe) off-topic:] Alesio, which in your opinion is the best distro or > system > to use for audio production in terms of "system/kernel set-up"? Ralf: "64 Studio 3.3 is the best distro if you won't tweak yourself, unfortunately it's much too old now, but a new version might be released in April." http://www.64studio.com/ Note: They do OEM stuff for music, so no pulseaudio and other annoying desktop stuff by default. AV Linux and Planet CCRMA should be good too, avoid Suse, openArtist ... Debian and Suse are good distros too, but they aren't easy to set up to become a DAW if you don't have much knowledge. > > Thanks, > > Alex > -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Kubuntu 10.10 and real-time kernel
> Date: Sun, 27 Feb 2011 11:47:24 +0100 > Subject: Re: Kubuntu 10.10 and real-time kernel > From: abog...@ubuntu.com > To: ubuntu-studio-users@lists.ubuntu.com > > Hi, > > 2011/2/26 Hartmut Noack : > [...] > > Kernel and System-Setup are really important. If a capable basic-system is > > set up carefully, the desktop-system does not matter much. > [...] > > I agree, definitely. > > Please note that Ubuntu Studio don't offer that level of setup at the moment. Hello, Could you please be more specific on what is missing in Ubuntu Studio to get that level of setup? This what I know already : - Ubuntu Studio already automatically configure the /etc/security/limits.d/audio.conf by adding the lines : @audio - rtprio 95 @audio - memlockunlimited You just have to add yourself in the 'audio' group manually. - However, there seem to be a problem if you use a generic kernel in Ubuntu 10.10, because in Ubuntu 10.10 the "RT_GROUP-SCHED" option in the kernel is activated. As far as I understand, this means that doing the previous manipulation (ie configuring the /etc/security/limits.d/audio.conf and adding yourself in the audio group) won't allow real-time erformance for JAck... "The RT_GROUP_SCHED option overrides everything that may have been configured in limits.conf and makes it very complex for regular users to get access to the realtime scheduling that JACK works best with. " This comes from Jack-audio-connection-kit FAQ http://jackaudio.org/linux_group_sched Ok so the only option is to use a precompiled real-time kernel, or a preemnt kernel having that RT_GROUP_SCHED option disabled (for example in Alessio Bogani's ppa), (or a "home-compiled" kernel, which is what i'm doing), or use other solutions like it is said in the jack FAQ page I mentioned . - The rtirq-init script has to be used; Is there something else in Ubuntu Studio that has to be set up? Thank you very much. Victor > > Ciao, > Alessio > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: wanted Ubuntu Studio hardware advice
On Feb 27, 2011 8:01 AM, "Peter Nodiff" wrote: > > Wanted: Ubuntu Studio hardware advice to build a PC (from New Egg or similar) especially video card... Pete > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users Intel -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 14:21 +0100, Ralf wrote: > On Sun, 2011-02-27 at 15:09 +0200, Alexandros Bitoulas wrote: > > > On Sat, Feb 26, 2011 at 2:52 PM, Scott Lavender > > wrote: > > > Oh, I forgot to mention that JACK now asks you if you want to enable -rt > > > privileges. > > > > > > If you answer 'yes' and the user is in the 'audio' group then you should > > > have better performance. > > Once again Scott to confirm, I still can answer yes even at the case that I > > don't use the realtime kernel? I suppose the answer is no, isn't it? > > > > > If you didn't answer 'yes' you may still be able to uninstall JACK > > > completely and resinstall and answer again. Ok, perhaps you are able to answer y if you answered n before, but hopefully it won't work the other way round. Imagine upgrades done automatically. > > This is only for the group audio. You can add or delete groups later. > You can add or remove users from groups later. > Even if you shouldn't need a group audio it has no negative impact to > your system, if there is such a group and if there should or shouldn't > be users member of this group. > > Btw. I don't think reinstalling and giving a different answer will > switch bag the settings. At least I don't wish to have a package that > will remove something I might have set up manually before. > > Anyway. You should answer yes. Security limits, resp. a group for > security limits won't break functionality for your OS, even if you are > booted to a non-rt kernel. > > Cheers! > > Ralf > > > > > > > Hope this helps. > > > > > -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Στις Κυρ 27 Φεβ 2011 12:47:24 Alessio Igor Bogani γράψατε: > Hi, > > 2011/2/26 Hartmut Noack : > [...] > > > Kernel and System-Setup are really important. If a capable basic-system > > is set up carefully, the desktop-system does not matter much. > > [...] > > I agree, definitely. > > Please note that Ubuntu Studio don't offer that level of setup at the > moment. > > Ciao, > Alessio Hello Alessio! [to Hartmut also:] So, what what can I do to set-up my system "carefully", What do you mean by that? I have just upgraded my vanilla Ubuntu 10.04 to the vanilla Kubuntu 10.10 and then added from the repositories all the audio applications that I needed. Is this ok? [(maybe) off-topic:] Alesio, which in your opinion is the best distro or system to use for audio production in terms of "system/kernel set-up"? Thanks, Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 15:09 +0200, Alexandros Bitoulas wrote: > > On Sat, Feb 26, 2011 at 2:52 PM, Scott Lavender > wrote: > > Oh, I forgot to mention that JACK now asks you if you want to enable -rt > > privileges. > > > > If you answer 'yes' and the user is in the 'audio' group then you should > > have better performance. > Once again Scott to confirm, I still can answer yes even at the case that I > don't use the realtime kernel? I suppose the answer is no, isn't it? > > > If you didn't answer 'yes' you may still be able to uninstall JACK > > completely and resinstall and answer again. This is only for the group audio. You can add or delete groups later. You can add or remove users from groups later. Even if you shouldn't need a group audio it has no negative impact to your system, if there is such a group and if there should or shouldn't be users member of this group. Btw. I don't think reinstalling and giving a different answer will switch bag the settings. At least I don't wish to have a package that will remove something I might have set up manually before. Anyway. You should answer yes. Security limits, resp. a group for security limits won't break functionality for your OS, even if you are booted to a non-rt kernel. Cheers! Ralf > > > > Hope this helps. > > -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Στις Κυρ 27 Φεβ 2011 00:17:23 Hartmut Noack γράψατε: > Am 26.02.2011 21:52, schrieb Scott Lavender: > > On Sat, Feb 26, 2011 at 2:16 PM, Alexandros Bitoulaswrote: > >> Hello everybody! > > > > Hi Alexandros! > > > >> I run kubuntu 10.10 with 2.6.35-25-generic kernel and I am very pleased > >> and enthusiast about it's aesthetic feel. > >> > >> However, I want to record live my guitar. With this kernel, the latency > >> that I > >> get in Jack, (with 512 frames/period, 44100 Sample Rate and 2 > >> Periods/Buffer) > >> is 23.2 msec which is a little bit annoying. If I lower the Frames to > >> 256 I get 11.6 but I have many Xruns. > > > > it would be helpful to know what you audio interface is to perhaps help > > you get better performance. > > > > Also, in some cases (and yours might be one) if you add the user to the > > 'audio' group it helps performance as well. > > > >> So, I am thinking to install the realtime kernel. The question is: are > >> Kubuntu > >> 10.10 and real-time kernel full compatible with each other? Do I need to > >> make > >> any considerations/modifications in my system before installing the > >> real-time > >> kernel. Did anyone had any problems with Kubuntu 10.10 and real-time > >> kernel? > > > > Good question. But since it's all based on Ubuntu I wouldn't expect much > > deviation in performance except in specific, restricted cases. > > > >> I searched on the web and I only found some generic comments like "that > >> KDE isn't suitable for audio production", but with no serious support > >> that validate those comments. > > > > I think many people would argue with that position. > > KDE is not as "light" in terms of memory/CPU-usage as Fluxbox but if one > disabeles the desktop-search-system, KDE will have little impact on the > audio-performance. > Kernel and System-Setup are really important. If a capable basic-system > is set up carefully, the desktop-system does not matter much. Running > KDE instead of Fluxbox will not have much more impact than another Synth > started in a session. > > I use to run KDE4.3 under Suse 11.2 with jengelh-RT-kernel on my > quad-core workstation and tested the same system with Fluxbox and LXDE > also. I did not see any improvement of performance so I stuck with KDE > for convenience ;-) > > best regs > > HZN > Hello Hartmut! All right, this is valuable information/experience! Thanks for sharing! Alex > > A good friend created and maintains that KXStudio distro which is based > > on Ubuntu Studio and uses KDE. It's brilliant and beautiful and > > includes a -realtime kernel I believe. It's a live DVD so I would > > highly recommend researching it. You can find it here: > > http://kxstudio.sourceforge.net/ > > > >> I am looking forward to your replies and comments! > >> > >> Thank you in advance, > >> > >> Alex > >> > >> -- > >> Ubuntu-Studio-users mailing list > >> Ubuntu-Studio-users@lists.ubuntu.com > >> Modify settings or unsubscribe at: > >> https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > > > > ScottL -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
> On Sat, Feb 26, 2011 at 2:52 PM, Scott Lavender wrote: > Oh, I forgot to mention that JACK now asks you if you want to enable -rt > privileges. > > If you answer 'yes' and the user is in the 'audio' group then you should > have better performance. Once again Scott to confirm, I still can answer yes even at the case that I don't use the realtime kernel? I suppose the answer is no, isn't it? > If you didn't answer 'yes' you may still be able to uninstall JACK > completely and resinstall and answer again. > > Hope this helps. -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
wanted Ubuntu Studio hardware advice
Wanted: Ubuntu Studio hardware advice to build a PC (from New Egg or similar) especially video card... Pete -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
> On Sat, Feb 26, 2011 at 2:16 PM, Alexandros Bitoulas wrote: > > Hello everybody! > > Hi Alexandros! > Hello Scott, thanks for your reply! > > I run kubuntu 10.10 with 2.6.35-25-generic kernel and I am very pleased > > and enthusiast about it's aesthetic feel. > > > > However, I want to record live my guitar. With this kernel, the latency > > that I > > get in Jack, (with 512 frames/period, 44100 Sample Rate and 2 > > Periods/Buffer) > > is 23.2 msec which is a little bit annoying. If I lower the Frames to 256 > > I get 11.6 but I have many Xruns. > > it would be helpful to know what you audio interface is to perhaps help you > get better performance. My on board card is (if I run lspci:) 00:09.0 Audio device: nVidia Corporation MCP73 High Definition Audio (rev a1) And to record my guitar I have recently bought this (cheapest) T.BONE USB-1G (http://www.thomann.de/gb/the_tbone_usb1g.htm?sid=a939dfae3529d54ead5d2523ae73a789) where with lsusb I take: Bus 002 Device 005: ID 0d8c:0008 C-Media Electronics, Inc. Since I am new with (ubuntu) audio/studio software and hardware, I do not know how to further appreciate and make use this information with regard to your comments! Any further comments or thoughts on that are more than welcome! > Also, in some cases (and yours might be one) if you add the user to the > 'audio' group it helps performance as well. Should I add my user name to the 'audio' group even with the 2.6.35-25-generic kernel, or you are referring to the case that I install the realtime kernel? > > So, I am thinking to install the realtime kernel. The question is: are > > Kubuntu > > 10.10 and real-time kernel full compatible with each other? Do I need to > > make > > any considerations/modifications in my system before installing the > > real-time > > kernel. Did anyone had any problems with Kubuntu 10.10 and real-time > > kernel? > > Good question. But since it's all based on Ubuntu I wouldn't expect much > deviation in performance except in specific, restricted cases. > > > I searched on the web and I only found some generic comments like "that > > KDE isn't suitable for audio production", but with no serious support > > that validate those comments. > > I think many people would argue with that position. > > A good friend created and maintains that KXStudio distro which is based on > Ubuntu Studio and uses KDE. It's brilliant and beautiful and includes a > -realtime kernel I believe. It's a live DVD so I would highly recommend > researching it. You can find it here: > http://kxstudio.sourceforge.net/ Well, to be honest I don't feel the need to migrate to another desktop environment currently, but yes I will give it a try researching it! Thanks! > > I am looking forward to your replies and comments! > > > > Thank you in advance, > > > > Alex > > > > -- > > Ubuntu-Studio-users mailing list > > Ubuntu-Studio-users@lists.ubuntu.com > > Modify settings or unsubscribe at: > > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > > ScottL P.S. Scott, sorry for double sending this message, I forgot to c.c to the ubuntu-studio users list mail! Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 11:47 +0100, Alessio Igor Bogani wrote:
> Hi,
>
> 2011/2/26 Hartmut Noack :
> [...]
> > Kernel and System-Setup are really important. If a capable basic-system is
> > set up carefully, the desktop-system does not matter much.
> [...]
>
> I agree, definitely.
>
> Please note that Ubuntu Studio don't offer that level of setup at the moment.
>
> Ciao,
> Alessio
>
On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor
BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA
GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from the
repositories seems to be stable since I
- build a kernel-rt by the attached script rt4us_[snip]
(Note: for running the kernel-rt the package rtirq-init needs to be
installed and the user has to be member of the group
'audio', /etc/security/limits.d is set up
automatically by the packages)
If you're booted to the current kernel 2.6.35-25-generic, you only
need to push enter all the times.
- to run the kernel build script 1. install the packages
fakeroot, build-essential, crash, kexec-tools, makedumpfile,
kernel-wedge
2. run 'sudo apt-get build-deb linux'
3. then install the packages git-core, libncurse5, libncurse5-dev,
libelf-dev, asciidoc, binutils-dev, kernel-package, make-kpkg
Not all packages might be needed for this way of building a kernel and
perhaps some basic packages are missing, or they'll be dependencies
that automatically will be installed too.
- for Envy24 cards you need to edit /usr/share/alsa/cards/ICE1724.conf,
see or copy and paste the attached script (perhaps you need to do some
settings for KDE too, I'm using GNOME).
- fluidsynth-dssi is broken, this can be fixed by adding
'deb http://ftp.de.debian.org/debian wheezy main' to Synaptic's
repository list (ignore messages regarding to the keyring), then
reload and upgrade/install fluidsynth, libfluidsynth1,
libfluidsynth-dev and liblash2 ONLY. Keep liblash3 additionally.
After doing this, DISABLE all repository for Wheezy, e.g. the source
repository too. Don't use Wheezy repositories for anything else.
- If you've got issues with a NVIDIA graphics, simply use 3D for non-rt
kernels only. Btw. it's said that it anyway should be better to use the
nv driver for kernel-rt.
Add 2 xorg.conf to /etc/X11 (xorg.conf.nv and xorg.conf.nvidia) and the
attached script to /etc/rcS.d/
Take care to run it before X is started, e.g. list (ls) /etc/X11:
/etc/rcS.d/README /etc/rcS.d/S25brltty/etc/rcS.d/S47lm-sensors
/etc/rcS.d/S69switch_xorg.conf
/etc/rcS.d/S13pcmciautils /etc/rcS.d/S37apparmor /etc/rcS.d/S55urandom
/etc/rcS.d/S70x11-common
I guess the 'exit 0' line can be deleted.
On my Edubuntu Studio 10.10 at the moment just the mouse wheel (strange)
seems to be not working, but anything else seems to be ok.
FWIW, until now beside the kernel-rt I only build rubber band, dssi and
qtractor myself, anything else is from the repositories.
+ 2 Cents
Hth,
Ralf
--
Asalaam alikum sisters and brothers of Bikini Bottom,
do the Bob attack today, http://www.wmata.com/rail/schedules.cfm.
Allah is great.
N.S. Al Ineeater
rt4us_nv+restore_grub.cfg_disabled
Description: application/shellscript
#
# Configuration for the ICE1712 (Envy24) chip
#
# default with dmix & dsnoop
ICE1712.pcm.default {
@args [ CARD ]
@args.CARD {
type string
}
type asym
playback.pcm {
type plug
slave.pcm {
@func concat
strings [ "dmix:" $CARD ",FORMAT=S32_LE" ]
}
}
capture.pcm {
type plug
slave.pcm {
@func concat
strings [ "dsnoop:" $CARD ",FORMAT=S32_LE" ]
}
}
}
ICE1712.pcm.front.0 {
@args [ CARD ]
@args.CARD {
type string
}
type route
ttable.0.0 1
ttable.1.1 1
slave.pcm {
type hw
card $CARD
}
fix PA issue
slave.format S32_LE
slave.channels 10
##
}
ICE1712.pcm.surround40.0 {
@args [ CARD ]
@args.CARD {
type string
}
type route
ttable.0.0 1
ttable.1.1 1
ttable.2.2 1
ttable.3.3 1
slave.pcm {
type hw
card $CARD
}
}
ICE1712.pcm.surround51.0 {
@args [ CARD ]
@args.CARD {
type string
}
type route
ttable.0.0 1
ttable.1.1 1
ttable.2.2 1
ttable.3.3 1
ttable.4.4 1
ttable.5.5 1
slave.pcm {
type hw
card $CARD
}
}
ICE1712.pcm.iec958.0 {
@args [ CARD AES0 AES1 AES2 AES3 ]
@args.CARD {
type string
}
@args.AES0 {
type integer
}
@args.AES1 {
type integer
}
@args.AES2 {
type integer
}
@args.AES3 {
type integer
}
type asym
playback.pcm {
type hooks
slave.pcm {
type route
ttable.0.8 1
ttable.1.9 1
slave.pcm {
type hw
card $CARD
}
slave.format S32_LE
slave.channels 10
}
hooks.0 {
type ctl_elems
hook_args [
{
interface PCM
name "IEC958 Playback PCM Stream"
lock true
preserve true
value [ $AES0 $AES1 $AES2 $AES3 ]
}
]
}
}
capture.pcm {
type route
ttable.0.8 1
ttable.1.9 1
slav
Re: Kubuntu 10.10 and real-time kernel
Hi, 2011/2/26 Hartmut Noack : [...] > Kernel and System-Setup are really important. If a capable basic-system is > set up carefully, the desktop-system does not matter much. [...] I agree, definitely. Please note that Ubuntu Studio don't offer that level of setup at the moment. Ciao, Alessio -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
