_hot_: Avidemux+cannot+use+that+file+as+audio+track

You’ve selected an external audio file (like an MP3, WAV, or AAC) to replace or merge with your video’s audio, but Avidemux refuses to cooperate. Why? And more importantly, how do you fix it?

If you don't have a video, you may need to use a different tool like Alternative Tool: FFmpeg (Command Line) avidemux+cannot+use+that+file+as+audio+track

Has anyone found a reliable workaround? Is there a specific format Avidemux expects? You’ve selected an external audio file (like an

: He went to the Audio menu and chose Select Track . If you don't have a video, you may

Ensure you are using the latest nightly build or stable release from the official Avidemux website 4. The "Dummy Video" Trick If you are trying to save

Instead of using Audio > Select Track , try a different workflow to merge audio:

: Avidemux cannot invoke demuxers for external audio tracks. If you try to add an .m4a or .mp4 file as an external track, it will fail because these are containers, not raw streams.