"mix-matrix" is not working at audioconvert
I'm trying to play a stereo sound file as a mono sound.
In fact, I'd like to just play only one specific channel such as left or right channel.
I've tried following pipeline structure to achieve:
gst-launch-1.0 -v filesrc location=stereo.wav ! wavparse ! audioconvert mix-matrix="<<(float)1.0, (float)0.0>, <(float)1.0, (float)0.0>>" ! audioresample ! autoaudiosink
But it seems not work.
The playback-sound heard just like it used to be.