[linux-audio-user] Re: [Alsa-user] Terratec PHASE 28 - Linux-audio-user

15 Nov 2005

Hello Petr, 

I think, we both are the only ones, who use this card... and try to configure 
that card. 

Further, I'm not sure, if the card is full supported from alsa. maybe we both 
can figure that out. My expierence is that playing is fine on the terratec.
First, you should try aplay -I  wavefile, to specify, if it is possible to 
select one channel.  

Am Montag 14 November 2005 10:13 schrieb Petar Nedyalkov:
...
  Hello list,

 I've successfully installed ALSA drivers 1.0.10rc3 on my server, having two
 Terratec PHASE 28 cards. Each Terratec PHASE 28 has 8 audio outs, which can
 be combined into 4 stereo out channels. I want to configure ALSA in such a
 manner that will allow me to play different sound in each of the four
 stereo channels. I.e. I want to combine the 8 outs into pairs and use them
 separately.

 I think I've solved it, but:

 1. I'm puzzled why the amixer output for each card doesn't show I have four
 stereo out channels but have Front, Rear and Side as stereo, and Center and
 LFE as mono. Does this concern the ice1724 module?

My insight into the mixer controls are, that there are 8 mono channels. (H/W 0 
- 7 ) and not 4 stereo channels . this can seen with  
soundroom@funnjoy:~$ amixer scontrols
Simple mixer control 'Master',0
Simple mixer control 'PCM',0
Simple mixer control 'Front',0
Simple mixer control 'Center',0
Simple mixer control 'LFE',0
Simple mixer control 'Side',0
Simple mixer control 'IEC958',0
Simple mixer control 'IEC958 Output',0
Simple mixer control 'IEC958',1
Simple mixer control 'ADC Oversampling',0
Simple mixer control 'DAC Deemphasis',0
Simple mixer control 'H/W',0
Simple mixer control 'H/W',1
Simple mixer control 'H/W',2
Simple mixer control 'H/W',3
Simple mixer control 'H/W',4
Simple mixer control 'H/W',5
Simple mixer control 'H/W',6
Simple mixer control 'H/W',7
Simple mixer control 'Multi Track Internal Clock',0
Simple mixer control 'Multi Track Peak',0
Simple mixer control 'Multi Track Rate Locking',0
Simple mixer control 'Multi Track Rate Reset',0
Simple mixer control 'Rear',0

and this will be supported from the jack_lsp command 

...
  2. When I play sound through the newly configured PCM
devices it's volume
 is low even if I've configured it with amixer to 100%. how do you play sound ??

...

 Can you please tell me if my configuration is correct - does it combine
 each of the 8 out channels into 4 pcm devices?
 i don't know this .asoundrc thing, since i use jack. 

...
  Does each of these 4 pcm devices represent one of the
Front, Rear, Side,
 Center/LFE channels (I want to control the volume through amixer).

 I want to use it with mplayer - for instance `mplayer -ao
 alsa:device=card11 song1.mp3` and `mplayer -ao alsa:device=card12
 song2.mp3`, etc.

why dont you use jack. this is more easy and you can connect it by hand.

sorry, for replying my answer again. is recording possible for you. 
and do you know, whatfor this item thing after each mixer control are. 
i mean this 

Simple mixer control 'H/W',5
  Capabilities: enum
  Items: 'PCM Out' 'H/W In 0' 'H/W In 1' 'IEC958 In L'
'IEC958 In R'
  Item0: 'PCM Out'

sizu c~