Audacious can't play some m4a files, but vlc can play it

Question

I have some audio files with m4a format. But some of the file can't be played with Audacious but can be played with VLC. Why did it happen?

Answer 1

This issue has been mentioned in a bug report on the Audacious bug tracker:

Certain .m4a files do not play

To play these files in Audacious you will need to have use ffaudio: make sure your copy of Audacious is using the 'FFmpeg Plugin'.

See the image below which demonstrates the FFmpeg Plugin selected in the Audacious Settings:

And then all should be well...