[gst-devel] adder, tee and two sinks -- second try

[Christophe Dehais]

Hello and sorry if this is of no interests here ...

Having 2 sound cards, I split up any sound produced by gstreamer
application thanks to a gconfaudiosink profile that is:

audioconvert ! audioresample ! tee name=t t.src1 ! queue ! alsasink
sync=false device=ymfpci t.src2 ! queue ! alsasink sync=false
device=default

What has to be noticed is the 'sync=false' parameter. Without it I
also got crackling sound in one of the sound cards.

hope this help,
Christophe


On 3/21/07, Mathis Hofer <mathis.hofer at dreamlab.net> wrote:
> sorry forgot to copy...
>
>
> Hallo René
>
> > Try whether the following command runs correctly:
> >
> > gst-launch-0.10 audiotestsrc ! audioconvert ! alsasink device=hw:0 \
> >  audiotestsrc ! audioconvert ! alsasink device=hw:1
> With this pipeline I get exactly the same effect like with my example
> pipeline. The second alsasink always makes a crackling noise, no matter
> which one it is.
>
> > If this fails with the same symptoms, I'd suspect you trigger a problem
> > with alsasink.
> Okay?
>
> > You could also try to replace the alsasinks in your test program with
> > wavenc ! filesink, sending each output to an own wav file which you can
> > inspect afterward.
> This is interesting. When sending each output to a wav file, everything
> seems okay, no crackling noise. You may be right, it looks like a
> problem with alsasink...
>
> Mathis
>
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