Change the setting from Dummy or Win32 to , PulseAudio , or WASAPI (depending on your operating system). Restart Avidemux and attempt to load the audio file again. Step-by-Step: Adding the Audio Correctly
Sometimes Avidemux prefers it if you don't use the "Select Track" menu immediately.
In short, Avidemux (like MP4, M4A, MKV, or WebM) when adding them externally. It needs the raw, "naked" audio stream to work with.
Export your audio from a tool like Audacity as a 16-bit PCM WAV file before adding it in Avidemux. This almost always works, as WAV is a very basic and well-supported raw format that Avidemux handles reliably. The official forum suggests adding an external track as an uncompressed .wav file and encoding it when saving the video. You can also export as MP3 or AAC using the methods below, but WAV is the most foolproof. avidemux+cannot+use+that+file+as+audio+track
However, this error isn't random. Understanding why it happens is the key to fixing it, and once you know the rules, the solution is usually simple. This guide is a complete breakdown of everything you need to know to conquer the "Cannot use that file as audio track" error in Avidemux.
Fortunately, this problem is easy to bypass once you understand why it happens. Here is a comprehensive guide to understanding and fixing this error. Why Does This Error Happen?
A "Smart Audio Transcode & Inject" mechanism that automatically detects incompatible audio inputs and offers to convert them into a safe, editable format on the fly without leaving the Avidemux interface. Change the setting from Dummy or Win32 to
This feature leverages the existing decoders already present in Avidemux. It essentially automates the "Save Audio" -> "Convert to WAV" -> "Load Audio" loop that advanced users currently do manually.
: Files with complex metadata (e.g., Traktor ID3 tags in MP3s) can confuse Avidemux, causing it to misread the sampling rate and reject the file.
ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3 Use code with caution. Alternative Workflow: Remuxing Outside of Avidemux In short, Avidemux (like MP4, M4A, MKV, or
ffmpeg -i input.m4a -c:a copy -bsf:a aac_adtstoasc output.aac Use code with caution. Import this new output.aac file directly into Avidemux. For Truncating MP3 Metadata Headers:
For example, a file with the .m4a extension is actually just an MP4 container that has an AAC audio track but no video track. The extension .m4a is only a human-readable hint. From Avidemux's perspective, it's still an unsupported container.
If you keep getting the error, bypass it entirely: