[Alsa-user] cmi8738 & spdif recording

[Klaus <kl...@gm...>]

Hi!

I bought a "Trust - Sound Expert Digital Surround 5.1" a few
Days ago. First i've tried the kernel driver of 2.4.17
for 8738 chipsets. It works but has completly wrong
mixer section and spdif works a bit strange too.

So i got the alsa drivers. First i was quite confused
with it but now something gets clearer :-). I'm working
with the CVS version now. With 0.5 spdif playback did not
work at all.

With the latest CVS version spdif playback works but
not together with analog output. But this seems to
be normal for some cards as far as i've read.

A more important problem is the distortion while
monitoring oder recording spdif sources with 48kHz.
44.1 kHz sounds a bit better but "too fast" at playback.
(how is this possible? Wrong sampling frequency althought
correct one displayed?)

Is anybody out there for whom spdif recording works?

My spdif Source is a Sony DAT.

Hm, another issue:

The Sony Dat obviously uses a relay to switch
sampling frequency while recording (or DAC only).
While in "spdif out mode" it clicks every time
i open the audio device or even if i play the
next song in xmms or change playing position.
Does the driver changes the Frequency on every
device open?
I've done a workaround in NAS now and set
ReleaseDevice to "no" but that's not so nice :-).

Any suggestions?


Klaus