[linux-audio-user] Quattro: part two of mail :-/

[Denis de Leeuw Duarte]

Well, in that respect, can you clear up something for me about your 
.asoundrc file? I am not that familiar with ALSA's internals, so perhaps 
this is a silly question, but here goes..

The .asoundrc comments say that quattro1 is pcm0, but what exactly is pcm0? 
Is that outputs 1 and 2 viewed as a stereo card?  I also don't really 
understand what all the other things are for, like quattro, q4, and q4b or 
how I could do practical things like record or play on one specific 
in/ouptut. Would you consider rewriting your comments in the file so they 
are more understandable to those not familiar with the intricacies of 
asoundrc and low level alsa stuff? It would be very helpful. Some practical 
hints along these lines would be great:

"quattro1 is the physical input 1 and 2 and output 1 and 2 working as one 
stereo device. It has a maximum samplerate of foo."

"To record or play a mono channel on a specific input/output using (for 
example) arecord, do 'bar'"

..and something similar to explain the differences between the q4, q4b and 
quattro entries. It would be great if you would want to do this, because it 
would save people the time of having to grok the whole .asoundrc syntax 
themselves.

Thank you for writing the thing in the first place by the way!! :-)


>From: Patrick Shirkey <pshirkey at boosthardware.com>
>Reply-To: linux-audio-user at music.columbia.edu
>To: linux-audio-user at music.columbia.edu
>Subject: Re: [linux-audio-user] Quattro: part two of mail :-/
>Date: Fri, 13 Jun 2003 19:14:28 +0900
>
>Denis de Leeuw Duarte wrote:
>>..sorry, I just sent half an e-mail by accident.
>>
>>I was about to describe how I tried recording with my quattro:
>>
>>   arecord -d quattro1 -r 44100 -c 1 -f S16_LE test.wav
>>   arecord -d quattro1 -r 48000 -c 1 -f S16_LE test.wav
>>   arecord -d quattro1 -r 48000 -c 2 -f S24_LE test.wav
>>
>>..and a few others. The sound is very much like it was sampled at a very 
>>low samplerate and/or bitrate. Can someone paste me a known good arecord 
>>line for the quattro, or does anyone know about this problem?
>>
>
>I've been unable to record throught e inputs 1/2 for a couple of months 
>now. 3,4 work perfectly though.
>
>
>--
>Patrick Shirkey - Boost Hardware Ltd.
>Http://www.boosthardware.com
>Http://www.djcj.org - The Linux Audio Users guide
>========================================
>
>Being on stage with the band in front of crowds shouting, "Get off! No! We 
>want normal music!", I think that was more like acting than anything I've 
>ever done.
>
>Goldie, 8 Nov, 2002
>The Scotsman
>

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