gstreamer pipeline to mix three audio source?

Question

This mixing of the two files:

gst-launch uridecodebin uri=file:///tmp/file1.mp3 ! adder name = m ! autoaudiosink uridecodebin uri=file:///tmp/file2.mp3 ! audioconvert ! m.

How to mix the 3 files ?

Answer 1

gst-launch-1.0 uridecodebin uri=file:///tmp/file1.mp3 ! audioconvert ! adder name = m ! audioconvert ! autoaudiosink \
               uridecodebin uri=file:///tmp/file2.mp3 ! audioconvert ! m. \
               uridecodebin uri=file:///tmp/file3.mp3 ! audioconvert ! m.

Answer 2

gst-launch-0.10 adder name=mix ! alsasink filesrc location=file1.wav ! wavparse ! audioconvert ! mix. filesrc location=file2.wav ! wavparse ! audioconvert ! mix. filesrc location=file3.wav ! wavparse ! audioconvert ! mix.

Surely isn't the best way. But, is a little start.

Answer 3

将“ alsasink”替换为“ wavenc！filesink location = output.wav”？