[alsa-devel] how to configure .asoundrc to make arecord use a default device

[Jelle de Jong]

On 29/07/09 19:51, stan wrote:
> On Wed, 29 Jul 2009 19:14:46 +0200
> Jelle de Jong<jelledejong at powercraft.nl>  wrote:
>
>> Hi Stan thanks for helping out.
> <snip>
>> I am no asourdrc specialist and I always have got issues
>
> Neither am I!  Ditto with the issues.  There are experts around.
>
>> understanding the syntax when it comes down to more complicated
>> setups. I know I need to make the audiodevice0 the default device.
>> But how can I do this without losing my mixing support, how I
>> configure it so it has dmix and dsnoop as default devices?
>>
>> An example how to fix my asoundrc would be really helpful.
>
> You're asking the wrong guy!  I just use the page I pointed you to, web
> search, and trial and error to get an .asoundrc that works.  I don't
> actually use one right now.
>
> I notice that your USB device is actually interpreted as 4 cards.  Are
> they each of different functionality?  You could try (as a wild guess):
>
>> pcm.!default {
>>      type plug{
>>         slave.pcm dmixer
>           slave.pcm drecord
>        }
>> }
>> pcm.dmixer {
>>      type dmix
>>      ipc_key 1024
>>      slave.pcm hw:audiodevice0
>> }
>   pcm.drecord {
>       type dsnoop
>       ipc_key 1025
>       slave.pcm hw:audiodevice0
>   }
>> ctl.!default {
>>       type hw
>>       card audiodevice0
>> }
>> ctl.dmixer {
>>      type hw
>>      card audiodevice0
>> }
>> ctl.drecord {
>>      type hw
>>      card audiodevice0
>> }
>> pcm.dsp {
>>       type plug {
>>         slave.pcm dmixer
>>         slave.pcm drecord
>         }
>> }
>> ctl.mixer {
>>       type hw
>>       card audiodevice0
>> }
>
> All this is supposition on my part.  Maybe it will give you enough of a
> hint in some way to get it working.

I don't know how you got it working but i tried several similar setups, 
and I ether get syntax error, working recording with broken playing, or 
working playing with broken recording. :( see:
http://debian.pastebin.com/m37d09000

I really hope somebody can show a cut and paste .asoundrc that I can use 
for testing.

Thanks in advance,

Jelle