Plugin exposing an ALSA device

Antonio Ospite ao2 at
Wed Oct 14 03:52:28 PDT 2015

On Wed, 14 Oct 2015 12:21:07 +0200
Robert Bielik <robert.bielik at> wrote:

> Reading your comment again, would it be possible to use a loop device and:
> gst-launch-1.0 alsasrc device="hw:Loopback,0,0" ! audioconvert ! alsasink
> ?

you can read from "hw:Loopback,1,0":

  gst-launch-1.0 alsasrc device="hw:Loopback,1,0" ! audioconvert ! autoaudiosink

and let the ALSA apps write to the input device "hw:Loopback,0,0".

I did this once to bring into GStreamer synthesized MIDI notes:

BTW I think I was confused by the use of the word "expose" referred to
an input :)


Antonio Ospite

A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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