: External tracks must generally be "raw" bitstreams. For example, while standard MP3s often work, AAC files must be in an ADTS- or LATM-encapsulated format, not a standard .m4a file.
Go to Format dropdown in the main toolbar and select MKV V2 or MKV . Then try adding your external audio track again. avidemux+cannot+use+that+file+as+audio+track
: Ensure you are using the latest version (e.g., Avidemux 2.8.1 or newer), as some file handling bugs are fixed in nightly builds. : External tracks must generally be "raw" bitstreams
Avidemux is a beloved tool in the video editing world for one simple reason: it’s fast, free, and perfect for cutting, filtering, and re-encoding video without the bloat of professional suites like Premiere Pro or DaVinci Resolve. However, its simplicity has a downside. When something goes wrong, the error messages can be cryptic, unhelpful, and infuriating. Then try adding your external audio track again
Repair or re-download if file is corrupted