: Convert them to WAV or MP3 . If you must use AAC, ensure it is exported as a raw ADTS stream rather than an .m4a container.
The most common culprit is attempting to import an or OGG file directly into a project where the output is set to copy, or simply because the internal decoder is failing to read the file header.
Use Handbrake to encode the video and audio together into a standard MP4 container, and then use Avidemux for final, precise cutting. Conclusion avidemux cannot use that file as audio track
If you don’t want to re-encode (to preserve quality), change the output container to one that supports your audio format.
If the audio file was downloaded from the internet or converted using a low-quality tool, it might have missing structural metadata that Avidemux requires to read the file timeline. How to Fix the Error : Convert them to WAV or MP3
Don't worry; we've got several solutions to help you resolve the "Avidemux cannot use that file as audio track" error.
Avidemux fails to import an external audio track due to three primary reasons: 1. The Audio is Wrapped in a Container Use Handbrake to encode the video and audio
might be supported for re-encoding internal tracks but cannot be imported as external files. avidemux.org How to Fix It
In short, an is usually okay. An M4A file needs stream extraction via FFmpeg. A FLAC file needs conversion to WAV.
Avidemux does not support .m4a as an external track because it is a container, not a raw stream.
The error message typically occurs when you attempt to add an external audio file that is in an unsupported container format or has incompatible metadata. Avidemux is strict about the types of external streams it accepts during the "Select Track" process. Common Causes of the Error