[alsa-devel] Fwd: surround51 lfe/center/front channel cross-talk with intel8x0 board

[Clemens Ladisch]

Matt Hirsch wrote:
> I have an AC'97 based onboard sound card in my system (snd_intel8x0
> driver). I'm using it in 6ch mode to drive two front speakers, two
> rear speakers and a subwoofer and center channel. Using speaker-test
> with the surround51 plug (or any other alsa program with that plug) to
> send audio to channel 5 (center in alsamixer) produces an attenuated
> signal on channel 2 (right front in alsamixer) and likewise, sending
> audio to channel 6 (lfe in alsamixer) produces an attenuated signal on
> channel 1 (left front in alsamixer).

This looks like a flaw in your hardware.

What codec are you using? (see /proc/asound/cards)


Regards,
Clemens