On Sat, 13 Nov 2010, r w wrote:

> Hello.
> Googling on subject, only two solutions raising : to use sound server as jack 
> or
> pulseaudio, or turn on hardware switch responsible for that. Since I want to 
> insert
> few ladspa plugins between in and out, jack is less or more acceptable. But 
> more less
> than more.
> Anyway, first coming in mind to solve this is to make plug or directly ladspa 
> slave of
> hw device . I've tried that with no result, but restarting alsa show no 
> errors, so is
> such configuration meaningful? Another way looking potential, is to use file 
> plugin,
> something like this:

Use the alsaloop utility (it's in the latest alsa-utils snapshot). Some 
program must copy the input stream to the output stream.

                                                Jaroslav

-----
Jaroslav Kysela <[email protected]>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.


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