Hello Takashi

the output of

cat /proc/asound/card0/cmipci

when thwe rear channels are noisy is:

C-Media PCI CMI8738-MC6 (model 55) at 0x9400, irq 22

00: 00 00 02 00 04: 14 fc 00 00 08: 0f 00 09 80 0c: 00 00 02 0a 10: 80 00 00 00 14: 00 80 00 80 18: a0 80 c0 0a 1c: 00 00 ee ee 20: 10 40 f8 00 24: 02 3e ff 00 28: ff ff ff ff 2c: ff ff ff ff 30: 00 00 00 00 34: 00 00 00 00 38: 00 00 00 00 3c: 00 00 00 00

after restarting the vdr-xineliboutput client the rear channels were ok. Then the output was

C-Media PCI CMI8738-MC6 (model 55) at 0x9400, irq 22

00: 00 00 02 00 04: 14 fc 00 00 08: 0f 00 09 80 0c: 00 00 02 0a 10: 80 00 00 00 14: 00 80 00 80 18: a0 80 c0 0a 1c: 00 00 ee ee 20: 10 40 f9 00 24: 02 3e ff 00 28: ff ff ff ff 2c: ff ff ff ff 30: 00 00 00 00 34: 00 00 00 00 38: 00 00 00 00 3c: 00 00 00 00

A diff off these outputs found als only difference the line starting with '20:'.

In advance, thank you for your help!

Felix

On Monday 06 August 2007 14:07:54 you wrote:

At Sat, 4 Aug 2007 20:19:04 +0200,

Felix Rauscher wrote:

...

Hello,

I have a Hercules Muse 5.1 DVD (C-Media PCI CMI8738-MC6). I have a problem when a running xine (e.g xineliboutput from vdr) switches from 2.0 to 5.1 output. Then the sound quality of the rear speakers is terrible. There is a noise on the rear speakers.

If I start the xineliboutput-client when vdr already plays a programme with a 5.1 sound track, the quality is ok. It looks like the switching between 2.0 to 5.1 is a problem.

So far, I have no clue what could be wrong there. Maybe you can see significant difference in /proc/asound/card0/cmipci proc file between the working and the non-working states.

Takashi