Avidemux is a popular, open-source video editing tool used for cutting, filtering, and encoding. However, users frequently encounter a frustrating error message:
If you just need to merge an audio file with a video without re-encoding, MKVToolNix is often more robust for "multiplexing" external tracks into MKV files without these strict format restrictions. Correct Workflow in Avidemux Once you have a compatible raw file (like a .wav ): How to add audio to a muted/silent video with avidemux avidemux cannot use that file as audio track
Files like .m4a are actually .mp4 containers containing an AAC audio track. Avidemux cannot read external tracks buried inside these containers. Avidemux is a popular, open-source video editing tool
The "Avidemux cannot use that file as audio track" error can usually be resolved by checking and possibly converting your audio file to a compatible format or adjusting settings within Avidemux. If issues persist, consider seeking help from Avidemux forums or communities for more specific advice. Avidemux cannot read external tracks buried inside these
The software expects a "raw" stream. For example, AAC files must be in a raw ADTS or LATM format to bypass the error.
Ensure the audio is standard (e.g., 44.1kHz or 48kHz). Non-standard bit rates or float formats sometimes cause the importer to crash or reject the file.