Hi folks,
this is my first attemp and question to a mailing list, so please be
patient with me. :)
Now to the problem:
I have a SoundBlaster Live! 24-Bit (7.1) with the ca0106 chip. Since
this damned chip does not support hardwaremixing I'm forced to use DMIX.
Yesterday I found the "ch51dup" route, a stereo upmix to "surround51".
It's working fine, at least with Beep-Media-Player. (MPlayer and XMMS
seem to have some problems with it, anyways, I didn't test that much.)
First problem: since CH51DUP doesn't go through DMIX it's blocking my
soundcard, this is not really that, what I wanted.
Second problem: DMIX can only be connected to the sound card. (Crappy
though, since I simply could route DMIX through CH51DUP and solve this
problem, since CH51DUP ends up in the generic device "surround51" and
therefore in the sound card, but well...)
Third problem: taking CH51DUP as default device and then forwarding to
DMIX won't work, too.
So, as you see, I do not have any clue how to solve it. I hope somebody
can help me solving this issue.
Ok, and here's my .asoundrc:
.-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|# Die Soundkarte wird festgelegt.
|pcm.snd_card {
| type hw
| card 0
|}
|
|# Das dmix-Plugin wird definiert.
|pcm.dmixer {
| type dmix
| ipc_key 1024
| ipc_perm 0666 # Andere Benutzer können ebenfalls dmix
gleichzeitig nutzen ( geil! :) )
| slave.pcm "snd_card"
| slave.channels 6
| slave {
| # buffer_size kann bei Problemen der jeweiligen Karte angepasst
werden.
| #channels 6
| period_time 0
| period_size 1024
| buffer_size 32768
| # bei Störungen kann die Konvertierung auf die Rate 44100
eingeschaltet werden.
| # rate 44100
| }
| bindings {
| 0 0
| 1 1
| }
|}
|
|# Dies definiert unser dmix-Plugin als Standard für alle ALSA-Programme.
|pcm.!default {
| type plug
| slave.pcm "dmixer"
| #route_policy ch51dup
| #slave.channels 6
|}
|
|########
|# AOSS #
|########
|
|# DSP wird simuliert und benutzt das dmix-Plugin.
|pcm.dsp "dmixer"
|pcm.dsp1 "dmixer"
|
|# OSS-Steuerung für dsp0 (falls es benötigt wird...)
|ctl.dsp {
| type plug
| slave.pcm "snd_card"
|}
|
|# OSS-Steuerung für dsp0 (falls es benötigt wird...)
|ctl.mixer {
| type plug
| slave.pcm "snd_card"
|}
|
|pcm.ch51dup {
| type route
| slave.pcm "surround51"
| slave {
| buffer_size 32768
| }
| slave.channels 6
| ttable.0.0 1
| ttable.1.1 1
| ttable.0.2 1
| ttable.1.3 1
| ttable.0.4 0.5
| ttable.1.4 0.5
| ttable.0.5 0.5
| ttable.1.5 0.5
|}
|
|#pcm.surround51 {
|# type route
|# slave.pcm "snd_card"
| #slave.channels 6
|#}
*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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