On Tue, Apr 14, 2009 at 10:39:55AM +1200, Eliot Blennerhassett wrote:
> without a default alsa.conf, plughw doesn't exist.
> It is composed of the "plug" on top of "hw".
> On my system it is defined in /usr/share/alsa/alsa.conf
>
> you might try
>
> pcm.!default {
> type plug
> slave.pcm {
> type hw
> card 0
> device 0
> subdevice 0
> }
> }
I have a default alsa.conf in the same location as you.
But, your suggestion did work! Thank you.
Now I have another question: my original goal in using just "hw" was
to send "bit perfect" data to the DAC on my soundcard (i.e. no
software-based alteration of the data/feed the soundcard exactly the
raw audio). The data is just CD digital audio, which I believe is
signed 16 bit little endian/44100 Hz. And then I found that my
soundcard doesn't natively support that.
Now that I'm using plughw---which does any necessary format/rate
conversions---am I really any better than using dmix?
In other words, is the only difference between dmix and plughw that
dmix will mix multiple streams? I don't mean to trivialize mixing
multiple streams, but from my perspective, I'm looking for the best
sound quality for only one audio stream.
So, an even more general question, are there any other sound
"purists" out there, trying to directly use "hw" for bit-perfect
audio? What hardware do you have, what has been your experience,
etc?
Thanks,
Matt
------------------------------------------------------------------------------
This SF.net email is sponsored by:
High Quality Requirements in a Collaborative Environment.
Download a free trial of Rational Requirements Composer Now!
http://p.sf.net/sfu/www-ibm-com
_______________________________________________
Alsa-user mailing list
Alsa-user@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/alsa-user
