Avidemux might have issues with certain sampling rates or bit depths.
Specific formats, like Vorbis ( .ogg ), are only supported during active video re-encoding, not as simple external audio track injections. 💻 Step-by-Step Fixes to Resolve the Error Method 1: Convert to Raw Audio via Audacity
Must be in an ADTS envelope (raw .aac file), not a .m4a container. AC3/E-AC3: Standard Dolby Digital formats. 2. Re-wrap with FFmpeg (Advanced) avidemux cannot use that file as audio track
If you have a file that Avidemux won't take, you can use FFmpeg to "strip" the container and extract just the raw stream:
: Large ID3 tags or specific metadata (like Traktor tags) at the start of an MP3 file can confuse Avidemux, causing it to misinterpret audio frame headers and reject the file. Avidemux might have issues with certain sampling rates
This error halts your workflow, but understanding why it appears is the first step to fixing it.
The error message typically occurs when you attempt to add an external audio file that is in an unsupported container format or has incompatible metadata. Avidemux is strict about the types of external streams it accepts during the "Select Track" process. Common Causes of the Error AC3/E-AC3: Standard Dolby Digital formats
When you're saving your project in Avidemux, you'll see an option for with choices like "Copy" or various encoders (AAC, MP3, etc.). A common mistake is trying to use the "Copy" mode when the original audio format isn't compatible with your chosen output container (e.g., MP4). If you get an error at this stage, the solution is to re-encode the audio to a compatible codec like AAC instead of using the "Copy" mode.
ffmpeg -i input.m4a -c copy output.aac