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

In Audio > Main Track , check Shift and Delay . Don't change them; just toggle the checkbox. Sometimes this forces Avidemux to recalculate the duration. Alternatively, use Audacity to trim/silence the audio to exactly match the video length (down to the millisecond).

Avidemux's demuxers are built to parse container formats that contain both audio and video streams. They rely on the presence of a video track to properly initialize and read the file's structure. An audio-only file breaks this assumption, causing the demuxer to fail. avidemux+cannot+use+that+file+as+audio+track

By following these steps, you should be able to resolve the "Cannot use that file as audio track" error in Avidemux and successfully add the audio file to your video project. In Audio > Main Track , check Shift and Delay

ffmpeg -i input_audio.wav -c:a aac -b:a 192k -ar 48000 input_audio_fixed.aac Use code with caution. Alternatively, use Audacity to trim/silence the audio to