I would like to mix two audio files using avconv. In the documentation I found the following way of implementing this:
avconv -i INPUT1 -i INPUT2 -filter_complex amix=inputs=2:duration=first:dropout_transition=3 OUTPUT
However, when I'm trying to run this I get the following errors:
Unrecognized option 'filter_complex'
Failed to set value 'amix=inputs=2:duration=first:dropout_transition=3' for option 'filter_complex'
I have been searching for a solution for quite some time, but couldn't find anything.
I have version 0.8.3-4:0.8.3-0ubuntu0.12.04.1 of avconv. Do I need to change anything in the configurations or use a different version of avconv? Is there another way in which I could mix the audio files?
Thank you for your help.