Hi folks,
for months now I have big problems getting surround sound and microphone
input to work with my Aureon Sky 5.1 and hope someone on this list can
and is willing to help me, now. I would like to put all of the collected
information and tips on the alsa wiki afterwards.
That's what I did so far:
I've read all the scanty information concerning the ice1724 chip, the available
alsa documentation, postings of different forums and mailinglists and also
got in contact with Simon Oosthoeck (-> alsaWiki).
The only "handmade" solution I've found so far is the following:
~/.asoundrc:
--------------------------------
pcm.!default {
type plug
slave ice1724_S32_LE;
}
pcm.surround {
type route;
slave.pcm {
type hw;
card 0;
device 0;
}
slave.channels 6
ttable.0.0 1;
ttable.1.1 1;
ttable.0.2 1;
ttable.1.3 1;
ttable.0.4 1;
ttable.1.5 1;
}
pcm_slave.ice1724_S32_LE {
pcm surround;
format S32_LE;
}
--------------------------------
Sound out of all 6 speakers but as everybody can imagine I'm not
satisfied with this solution (and microphone input is still not working)
because this is no "real" surround sound, isn't it?
What should work out of the box is to use the "surround51" device
(that's what I thought at the beginning without deeper knowledge of alsa)
but all I get is the following error message:
-----
[EMAIL PROTECTED] andreas $ aplay -Dsurround51 /usr/kde/3.2/share/sounds/pop.wav
Playing WAVE '/usr/kde/3.2/share/sounds/pop.wav' : Signed 16 bit Little Endian, Rate
44100 Hz, Mono
aplay: set_params:827: Sample format non available
-----
The common format problem, but how can this be fixed and why hasn't it already been
fixed in
/usr/share/alsa/cards/ICE1724.conf?
Well, perhaps someone already knows a solution to this problems... nevertheless
here are all the other questions I want to find answers for.
1) What are the following channels (?) in a{lsa}mixer for: IEC958, IEC958 1, IEC958
Output, Multi Track Peak
I can select what I like but can't notice any effect.
2) What are the following options for: PCM Out0, H/W In [0|1], IEC958 I (-nput ?)
What are the differences? "Which to use for what purpose"?
3) What is the "right" way to get surround sound with the ice1724 chip?
Do exist different or partial solutions to this problem?
Should (n't) it work right "out of the box" with the standard configs?
4) How can I get microphone input to work?
5) Are OSS modules needed anyway?
6) More to come perhaps...
================================
My setup is the following:
- Terratec Aureon Sky 5.1
- Philipps A3.600 Surround System
- Gentoo Linux, Kernel 2.6.3-wolk1.0
- Alsa Version 1.0.2c (used the kernel modules not alsa-driver)
- Alsa [Lib|Utils] Version 1.0.3
- Alsa Oss Version 1.0.3a
================================
In suspense expectation,
Andreas
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