Hi! I didn't see you trying the following command, which, in contrary to the commands below, should work: speaker-test -c -Dsurround51 This plays a 6 channel audio stream on a 6 channel device. The commands below played 2 channel streams on 6 channel devices or 6 channel streams on 2 channel devices, which both result in only front left/right producing sound. If you want your stereo sound to be played back on all the 6 channels available, you have to do upmixing. I admit that the wiki page is not linked to very well. Anyway, here it is: http://alsa.opensrc.org/Playing_stereo_on_surround_sound_setup_(Howto) The "ch51dup" device explained there does stereo to 5.1 upmixing using the surround51 device a playback device, which should be able to produce 6 channel sound. Regards, Ingo Sorin Peste schrieb: > Hello, > > I've got an issue with the M-Audio Revolution 5.1 card. Basically, I can > only get it to output 2.0 stereo; the LFE, center, and surround channels > are silent. > > ALSA 1.0.13, OpenSUSE 10.1 stock RPMs. > > I ran alsaconf and configured the card with the ice1724 driver (I > previously had an onboard nForce2 AC97 card configured). Test sound > played ok as 2.0 stereo. I've got nothing written in either ~/.asoundrc > or /etc/asound.conf . > > $aplay foo.wav > (works, 2.0) > > $ aplay foo.wav -Dsurround51 > Playing WAVE 'foo.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Stereo > aplay: set_params:904: Sample format non available > > $ speaker-test -c 6 > (only outputs to front L-R.) > > $ speaker-test -Dsurround51 > speaker-test 1.0.13 > > Playback device is surround51 > Stream parameters are 48000Hz, S16_LE, 1 channels > Using 16 octaves of pink noise > Sample format not available for playback: Invalid argument > Setting of hwparams failed: Invalid argument > > > I read in the ALSA Wiki that this board may only be capable of S32 > Little Endian format, so I tried > > $ aplay foo.wav -Dsurround51 -f S32_LE > Warning: format is changed to S16_LE > Playing WAVE 'foo.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Stereo > aplay: set_params:904: Sample format non available > > > $ mplayer some.mp3 -ao alsa:device=plug=surround51 -channels 6 > (only output is to front and playback is too fast) > > > > I wasn't able to troubleshoot my problem by using Google or the ALSA > wiki. I'm not an audio expert, I just want to listen to some music and > play some games with surround sound. If I can provide you with > additional info, please let me know. Thanks. > > Sorin ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
