Re: ALSA plugins

[Dan Ritter <dsr@randomstring.org>]

Miroslav Skoric wrote: 
> On 11/22/21 1:04 AM, Dan Ritter wrote:
> 
> ... and here is what I got after adding the secondary sound-card device:
> 
> ham@localhost:~$ aplay -L|grep dmix
> dmix:CARD=Intel,DEV=0
> dmix:CARD=Audio,DEV=0
> ham@localhost:~$ arecord -L|grep dsnoop
> dsnoop:CARD=Intel,DEV=0
> dsnoop:CARD=Audio,DEV=0
> ham@localhost:~$

That's good.

> Btw, there was no ~/.asoundrc in personal directory, and also no
> /etc/asoundrc (either before or after attaching the second card). Each sound
> card works well on its own, running different amateur radio protocols. The
> plan is to make the second card 'sharing' its function in between the
> protocol (application) it uses now *and* another one protocol that shall be
> also sent to the same card. However, up to now that added
> protocol/application returns an error msg telling that either record or
> playback device is already busy or not accessible in that card.
> 
> And then someone suggested me to check for dmix and dsnoop, as those plugins
> shall overcome that 'application sharing' issue.

Next you need to tell your applications to use the dmix devices
instead of their defaults.

This is application-specific; read the manual and look for "ALSA
device".

-dsr-