VLC without video

[Guest]

Hi,

I want to stream the audio of the /dev/dsp device without video.
Unfortunately using this command:

vlc v4l:adev=/dev/dsp --sout "#duplicate{dst=std{access=rtp,mux=ts,url=239.20.30.40:1234}}"

vlc interferes with an other vlc instance that use the default video4linux device.

Does a way to solve this problem exist?

[Guest]

I forgot:
same problem with the --no-video option and transcoding the audio stream.

Thanks