However, when you try to add an external audio file, Avidemux isn't expecting a box. It's expecting just the raw music CD itself. If you hand it a box (an MP4 file) with a CD inside, it will reject it. But if you take the CD out of the box (extract the raw AAC audio stream), Avidemux will accept it without issue.
Once your file is converted or remuxed, follow these exact steps to add it to your video project without errors:
💡 : Always ensure you are using the latest version of Avidemux, as newer builds include updated FFmpeg libraries that handle more audio formats natively.
If you have the audio and video as two separate files, try opening the video first, then go to (though this is primarily for joining files, it can sometimes bypass header checks). 4. The "Muxer" Workaround avidemux+cannot+use+that+file+as+audio+track
Avidemux differs from Non-Linear Editors (NLEs) like Premiere Pro or DaVinci Resolve. In those programs, the software automatically converts audio to match the project settings. Avidemux, however, is designed to be a "direct stream copy" editor. It prefers not to re-encode data unless absolutely necessary.
If you're using a correct raw stream like an MP3 file and still get the error, the issue is often more specific, stemming from how the audio file was created.
user wants a comprehensive, long-form article about the Avidemux error "cannot use that file as audio track". This requires diagnosing causes and providing solutions. To cover this effectively, I need to gather information from multiple sources. I'll search for general solutions, context about audio codecs, container compatibility, and specific instructions for using external audio tracks. A broad search strategy is needed. search results have provided a wealth of information from the official Avidemux forums, which are highly authoritative. The results cover various aspects: general solutions, external audio track limitations, supported codecs, container issues, and specific error instances. I have opened several relevant forum threads to gather detailed information. Now, I need to synthesize this information into a comprehensive article. The article will likely need to explain the error's meaning, outline common causes (container issues, codec incompatibility, file corruption, incorrect workflow), and provide practical solutions for each, along with a step-by-step guide and best practices for audio preparation. I will continue to open more relevant results to ensure comprehensive coverage. search results provide a solid foundation. I have gathered information from numerous forum threads, all from the official Avidemux site, which is highly authoritative. The results cover the error's definition, common causes (container issues, codec incompatibility, file corruption), and solutions (updating software, using raw audio streams, converting files). I will structure the article to introduce the error, explain its causes, provide step-by-step solutions, discuss best practices, and offer alternative tools. The article will be comprehensive and practical. Now, I will proceed to write the article. you've ever tried to add an external audio track to a video in Avidemux, you've probably seen this error message: "." However, when you try to add an external
Match sample rate / channels
The absolute most reliable fix is to run the problematic audio file through (a free, open-source audio editor). Audacity strips out bad metadata and rewrites a perfectly clean header that Avidemux will accept without issue. Download and open Audacity .
ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3 Use code with caution. Alternative Workflow: Remuxing Outside of Avidemux But if you take the CD out of
An .m4a file is actually an MPEG-4 container wrapping an AAC audio stream. Because Avidemux cannot invoke a demuxer for an external track, it fails to open it. It requires a raw AAC stream wrapped in an ADTS envelope instead.
: Avidemux cannot use audio stored in an MP4 container (like
This error typically appears when you try to add an external audio file (e.g., MP3, AAC, AC3, WAV) to a video file via the menu.
The audio file may have a sample rate or header structure that doesn't align with the video file.
Choose (for highest compatibility) or Export as MP3 .
