ffmpeg -i input.mp3 -c:a aac -b:a 192k -ar 48000 output.m4a Sometimes the file itself is fine, but the header is messy. Use FFmpeg to "remux" the file without changing quality.
Avidemux is a beloved, free, and open-source video editor, primarily used for simple cutting, filtering, and encoding tasks. Its lightweight nature and non-linear workflow make it a go-to tool for quick edits. However, users frequently encounter a frustrating roadblock: the dreaded red error message at the bottom of the interface: "Cannot use that file as audio track." avidemux cannot use that file as audio track
Avidemux operates on a principle by default. This means it tries to copy audio data directly from the source file (or external track) to the output without re-encoding. For this to work, the audio format must be compatible with the video container (MKV, MP4, AVI) you are using. ffmpeg -i input