Jaroslav Kysela wrote:

Can you tell me your hardware and software used for tests?

Hardware: Asus P4B533 MB Pentium P4 2.00GHz TerraTec DMX6Fire 24/96

Software:
Redhat 9 with kernel 2.6.0-bk3 + alsa-bk-2003-12-30.patch
Alsa driver 1.0.1, libs etc.: 1.0.0rc2
No Jack or aRts

All kinds of "internal" playback (aplay, Alsaplayer, xmms, ...) produce a periodic, heavily distorted sound on all of the 6 PCM Outs and 2 S/PDIF Ins, when routed to H/W Out 1/2. It sounds somewhat like a bad feedback loop.

The respective volume indicators (PCM Out 1-6, S/PDIF In R/L) in the Monitor Mixer tab of envy24control are to their upper limits then.

What works:
External playback from CD In or Line In, when routed to H/W Out 1/2, sounds nice without any distortion.


Hope this helps to narrow it down a bit.
Klaus



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