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

: While it supports common formats like WAV (16/24-bit) , MP2 , MP3 , AC3 , and DTS , it may struggle with certain AAC encodings unless they are in an ADTS or LATM envelope.

You are trying to add an external audio track while the is set to Copy . The original video may have a damaged or variable audio interleave (A/V interleave). avidemux+cannot+use+that+file+as+audio+track

: You might be trying to import an uncompressed .wav or raw .mp3 into a video container (like MP4 or MKV) that expects specific stream formats. : While it supports common formats like WAV

Launch Avidemux and drag-and-drop your main video file into the workspace. avidemux+cannot+use+that+file+as+audio+track

Older versions of Avidemux had fewer audio formats supported. Solutions to Fix "Cannot Use That File as Audio Track"