Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
At Sun, 27 Apr 2008 02:38:06 +0300, Sergei Steshenko wrote: On Sat, 26 Apr 2008 10:10:46 +0200 Takashi Iwai [EMAIL PROTECTED] wrote: At Fri, 25 Apr 2008 20:45:03 +0300, Sergei Steshenko wrote: On Fri, 25 Apr 2008 16:23:06 +0200 Takashi Iwai [EMAIL PROTECTED] wrote: At Fri, 25 Apr 2008 16:19:38 +0200, I wrote: At Thu, 27 Mar 2008 01:58:50 +0100, Rene Herman wrote: On 26-03-08 23:57, Bill Unruh wrote: On Wed, 26 Mar 2008, Helge Fredriksen wrote: Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav AFAIK, alsa frequency conversion is pretty primative ( linear interpolation) which produces a huge amount of noise/distortion. The default is, but if you install the alsa-plugins package (and libsamplerate) and add a line defaults.pcm.rate_converter samplerate Or speexrate. This is usually much faster. And forgot to write: you don't have to add anything to asoundrc for speexrate plugin. Install it, then alsa-lib will pick it up automatically. Takashi After some web search I see that there are several quality settings for speexrate. How does one choose/change the quality settings ? Use speexrate_best instead of speexrate, for example. See alsa-plugins/doc/speexrate.txt for details. Takashi Thanks. I've just read /usr/share/doc/packages/alsa-plugins/speexrate.txt file and I understand its contents, specifically, the Or, more easily, define a global variable defaults.pcm.rate_converter, which is used as the default converter type by plug and rate plugins: defaults.pcm.rate_converter speexrate Write the above in your ~/.asoundrc or /etc/asound.conf. part this way: I can edit /etc/asound.conf file and add, say, defaults.pcm.rate_converter speexrate_best line anywhere in the /etc/asound.conf file, Is this understanding correct ? Yes. I read the file on my SUSE 10.3. laptop, hope it's good enough version. ... I've just discovered there is no /etc/asound.conf file on my laptop: [EMAIL PROTECTED]:~ ls /etc/asound* /etc/asound.state [EMAIL PROTECTED]:~ . Should I create /etc/asound.conf ? Should it contain just one defaults.pcm.rate_converter speexrate_best line ? Yes. But I guess you barely notice the difference of output quality from the default speexrate (although you'll notice the difference of CPU usage :) Takashi - This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
At Fri, 25 Apr 2008 20:45:03 +0300, Sergei Steshenko wrote: On Fri, 25 Apr 2008 16:23:06 +0200 Takashi Iwai [EMAIL PROTECTED] wrote: At Fri, 25 Apr 2008 16:19:38 +0200, I wrote: At Thu, 27 Mar 2008 01:58:50 +0100, Rene Herman wrote: On 26-03-08 23:57, Bill Unruh wrote: On Wed, 26 Mar 2008, Helge Fredriksen wrote: Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav AFAIK, alsa frequency conversion is pretty primative ( linear interpolation) which produces a huge amount of noise/distortion. The default is, but if you install the alsa-plugins package (and libsamplerate) and add a line defaults.pcm.rate_converter samplerate Or speexrate. This is usually much faster. And forgot to write: you don't have to add anything to asoundrc for speexrate plugin. Install it, then alsa-lib will pick it up automatically. Takashi After some web search I see that there are several quality settings for speexrate. How does one choose/change the quality settings ? Use speexrate_best instead of speexrate, for example. See alsa-plugins/doc/speexrate.txt for details. Takashi - This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
On Sat, 26 Apr 2008 10:10:46 +0200 Takashi Iwai [EMAIL PROTECTED] wrote: At Fri, 25 Apr 2008 20:45:03 +0300, Sergei Steshenko wrote: On Fri, 25 Apr 2008 16:23:06 +0200 Takashi Iwai [EMAIL PROTECTED] wrote: At Fri, 25 Apr 2008 16:19:38 +0200, I wrote: At Thu, 27 Mar 2008 01:58:50 +0100, Rene Herman wrote: On 26-03-08 23:57, Bill Unruh wrote: On Wed, 26 Mar 2008, Helge Fredriksen wrote: Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav AFAIK, alsa frequency conversion is pretty primative ( linear interpolation) which produces a huge amount of noise/distortion. The default is, but if you install the alsa-plugins package (and libsamplerate) and add a line defaults.pcm.rate_converter samplerate Or speexrate. This is usually much faster. And forgot to write: you don't have to add anything to asoundrc for speexrate plugin. Install it, then alsa-lib will pick it up automatically. Takashi After some web search I see that there are several quality settings for speexrate. How does one choose/change the quality settings ? Use speexrate_best instead of speexrate, for example. See alsa-plugins/doc/speexrate.txt for details. Takashi Thanks. I've just read /usr/share/doc/packages/alsa-plugins/speexrate.txt file and I understand its contents, specifically, the Or, more easily, define a global variable defaults.pcm.rate_converter, which is used as the default converter type by plug and rate plugins: defaults.pcm.rate_converter speexrate Write the above in your ~/.asoundrc or /etc/asound.conf. part this way: I can edit /etc/asound.conf file and add, say, defaults.pcm.rate_converter speexrate_best line anywhere in the /etc/asound.conf file, Is this understanding correct ? I read the file on my SUSE 10.3. laptop, hope it's good enough version. ... I've just discovered there is no /etc/asound.conf file on my laptop: [EMAIL PROTECTED]:~ ls /etc/asound* /etc/asound.state [EMAIL PROTECTED]:~ . Should I create /etc/asound.conf ? Should it contain just one defaults.pcm.rate_converter speexrate_best line ? Thanks, Sergei. - This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
At Thu, 27 Mar 2008 01:58:50 +0100, Rene Herman wrote: On 26-03-08 23:57, Bill Unruh wrote: On Wed, 26 Mar 2008, Helge Fredriksen wrote: Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav AFAIK, alsa frequency conversion is pretty primative ( linear interpolation) which produces a huge amount of noise/distortion. The default is, but if you install the alsa-plugins package (and libsamplerate) and add a line defaults.pcm.rate_converter samplerate Or speexrate. This is usually much faster. Takashi - This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
At Fri, 25 Apr 2008 16:19:38 +0200, I wrote: At Thu, 27 Mar 2008 01:58:50 +0100, Rene Herman wrote: On 26-03-08 23:57, Bill Unruh wrote: On Wed, 26 Mar 2008, Helge Fredriksen wrote: Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav AFAIK, alsa frequency conversion is pretty primative ( linear interpolation) which produces a huge amount of noise/distortion. The default is, but if you install the alsa-plugins package (and libsamplerate) and add a line defaults.pcm.rate_converter samplerate Or speexrate. This is usually much faster. And forgot to write: you don't have to add anything to asoundrc for speexrate plugin. Install it, then alsa-lib will pick it up automatically. Takashi - This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav Then alsa do the conversion for you... Strange though that giving hw the argument -r 48000 didn't seem to work either. Credit to Florian Bomers for helping me out. Regards, Helge Fredriksen On Wed, Mar 19, 2008 at 8:41 PM, Darrell Bellerive [EMAIL PROTECTED] wrote: Helge Please document what ever you do and post it here. There are others with these cards who would also like to read configuration how-to's. Darrell On Wednesday 19 March 2008 03:29, Helge Fredriksen wrote: I just bought a couple of MAudio cards to test out (Revolution 5.1 and Audiophile 2496). I'm trying to test the sound using arecord and aplay, but no matter which format I choose I get the message: -- Darrell Bellerive - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
On Wed, 26 Mar 2008, Helge Fredriksen wrote: Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav AFAIK, alsa frequency conversion is pretty primative ( linear interpolation) which produces a huge amount of noise/distortion. See www.theory.physics.ubc.a/soundcard/resample.html for a comparison of various rate conversion routines on a sound sample roughly similar to real music (pink noise type spectrum) The problem is that better conversion routines require a longer time and thus have a longer latency than the simplest techniques. Mind you I have no idea how the sound cards with hardware conversion do it either, so they might be just as nasty as the linear software routines. Then alsa do the conversion for you... Strange though that giving hw the argument -r 48000 didn't seem to work either. Credit to Florian Bomers for helping me out. Regards, Helge Fredriksen On Wed, Mar 19, 2008 at 8:41 PM, Darrell Bellerive [EMAIL PROTECTED] wrote: Helge Please document what ever you do and post it here. There are others with these cards who would also like to read configuration how-to's. Darrell On Wednesday 19 March 2008 03:29, Helge Fredriksen wrote: I just bought a couple of MAudio cards to test out (Revolution 5.1 and Audiophile 2496). I'm trying to test the sound using arecord and aplay, but no matter which format I choose I get the message: -- Darrell Bellerive - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user -- William G. Unruh | Canadian Institute for| Tel: +1(604)822-3273 PhysicsAstronomy | Advanced Research | Fax: +1(604)822-5324 UBC, Vancouver,BC | Program in Cosmology | [EMAIL PROTECTED] Canada V6T 1Z1 | and Gravity | www.theory.physics.ubc.ca/ - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
Helge Fredriksen wrote: Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav Then alsa do the conversion for you... Strange though that giving hw the argument -r 48000 didn't seem to work either. Credit to Florian Bomers for helping me out. Regards, Helge Fredriksen Are you using any kind of sound server? I have a Rev5.1 and I use direct library calls to set the internal hardware frame rate to one supported in hardware without any problems whatsoever, *unless* something else has taken over the card. I use plughw because it does format conversions automatically which is handy but no frame rate conversion is done unless required. 48000 is a framerate that the card supports, so there should be no conversion required (others are 44100, 64000, 88200, 96000, 176400, 192000) . When you use hw instead of plughw, you are taking responsibility for all conversions to the cards internal representation. The Rev5.1 uses signed 32 bit integers internally. Most wav files are signed 16 bit integer files. plughw will convert, hw won't. At least that's my understanding. Could be wrong. :-) - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
On Thu, 27 Mar 2008, Rene Herman wrote: On 26-03-08 23:57, Bill Unruh wrote: On Wed, 26 Mar 2008, Helge Fredriksen wrote: Ok, here's what I found out: Since these cards seem to lack the support for doing frequency conversion in HW, you simply need to use the alsa plugin plughw instead of hw when referring to the card: arecord -Dplughw:0 test.wav aplay -Dplughw:0 test.wav AFAIK, alsa frequency conversion is pretty primative ( linear interpolation) which produces a huge amount of noise/distortion. The default is, but if you install the alsa-plugins package (and libsamplerate) and add a line defaults.pcm.rate_converter samplerate in /etc/alsa.conf or ~/.asoundrc, things should be better (untested advice). The question is how much latency does that introduce. Rene. -- William G. Unruh | Canadian Institute for| Tel: +1(604)822-3273 PhysicsAstronomy | Advanced Research | Fax: +1(604)822-5324 UBC, Vancouver,BC | Program in Cosmology | [EMAIL PROTECTED] Canada V6T 1Z1 | and Gravity | www.theory.physics.ubc.ca/ - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Trying to get arecord/aplay to work with M-Audio
Hello! I just bought a couple of MAudio cards to test out (Revolution 5.1 and Audiophile 2496). I'm trying to test the sound using arecord and aplay, but no matter which format I choose I get the message: aplay: set_params:900: Sample format non available Best regards, Helge Fredriksen - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
Hi! I suppose the best way to start might be to create some pcm-device in your .asoundrc or asound.conf. There you know exactly how many channels you have. Only other thing _I_ can imagine might help is: startup alsamixer, see how many playback channels you have, look for the setting of your card's internal clock and then try again. If you don't have to rely on alsa, you could try it with jack. It's much simpler because you see all channels, listed as ports and then you can connect them as you wish. HTH. Kindest regards Julien Music was my first love and it will be my last (John Miles) FIND MY WEB-PROJECT AT: http://ltsb.sourceforge.net the Linux TextBased Studio guide === AND MY PERSONAL PAGES AT: === http://www.juliencoder.de - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
On Wed, Mar 19, 2008 at 11:34 AM, Julien Claassen [EMAIL PROTECTED] wrote: Hi! I suppose the best way to start might be to create some pcm-device in your .asoundrc or asound.conf. Ouch, have tried to dig into the asound configuration a couple of times, but had little success understanding the overall design principles. There you know exactly how many channels you have. Only other thing _I_ can imagine might help is: startup alsamixer, see how many playback channels you have, look for the setting of your card's internal clock and then try again. Found it to be 44100 it seems (multitrack internal clock). However, this frequency didn't work either. If you don't have to rely on alsa, you could try it with jack. It's much simpler because you see all channels, listed as ports and then you can connect them as you wish. Sorry, that is not an option due to JavaSound bindings on top of ALSA. Helge - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
Helge Fredriksen wrote: I just bought a couple of MAudio cards to test out (Revolution 5.1 and Audiophile 2496). I'm trying to test the sound using arecord and aplay, but no matter which format I choose I get the message: aplay: set_params:900: Sample format non available Use aplay -v something.wav, then look into what format it gets converted. HTH Clemens - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Trying to get arecord/aplay to work with M-Audio
Helge Please document what ever you do and post it here. There are others with these cards who would also like to read configuration how-to's. Darrell On Wednesday 19 March 2008 03:29, Helge Fredriksen wrote: I just bought a couple of MAudio cards to test out (Revolution 5.1 and Audiophile 2496). I'm trying to test the sound using arecord and aplay, but no matter which format I choose I get the message: -- Darrell Bellerive - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
