How to convert stereo sound to mono with FFmpeg?

Question

I use the FFmpeg library for a personnal project and I need help about one thing. I have a music file in stereo sound and I want to convert this stereo sound to mono sound ? Is it possible with this library ? Is there a function inside to do this job ? My project is in C/C++.

I searched on the Doxygen documentation on the FFmpeg website and on this forum but I didn't find something interesting.

Thanks for reading !

Answer 1

You can just use ffmpeg. Direct command is present for the purpose-

ffmpeg -i stereo.flac -ac 1 mono.flac 

Would convert your stereo file into mono channel. For more details, you can look at this page-

https://trac.ffmpeg.org/wiki/AudioChannelManipulation