Hi,
On Tue, Feb 16, 2010 at 04:35:29PM +0000, Pedro Ribeiro wrote:
ALSA information script output is here http://www.alsa-project.org/db/?f=fe4cc3eda2df49c6055f55d4cef935524124d1a1 and my .asoundrc is here http://pastebin.com/m3f70572d
Currently my .asoundrc has 4 devices:
- Audio4DJ_A (combines channels 1 and 2)
- Audio4DJ_B (combines channels 3 and 4)
- Audio4DJ (combines Audio4DJ_A and Audio4DJ_B)
- ttable is a device for JACK according to this
http://alsa-project.org/main/index.php/Asoundrc#Virtual_multi_channel_device...
My goal is to have a separate ALSA soundcard for each pair of channels, an ALSA soundcard for 4 channels and a JACK device for all 4 channels.
Running speaker-test -c2 -D plughw:Audio4DJ,0,X -twav -l1 with X=0 and X=1 correctly outputs to each channel. Also, pcm.Audio4DJ_A and pcm.Audio4DJ_B correctly work through both ALSA and JACK for each pair of channels.
However, if I try to use the pcm.Audio4DJ (which combines both pcm.Audio4DJ_A and pcm.Audio4DJ_B), I get correct output through channels 1 and 2, but channels 3 and 4 have a lot of garbage - you can hear the track playing but it is at a very high pitch and distorted.
Could you first try to playback audio without all your quirks using the following commands, please.
For channel 1&2: aplay -D plughw:Audio4DJ,0,0 test.wav For channel 3&4: aplay -D plughw:Audio4DJ,0,1 test.wav
If that works, we can exclude driver issues. I'm very confident that will work btw, as this is the way I tested the driver.
I admittedly have no clue about JACK ;)
Daniel