Avidemux Cannot Use That File As | Audio Track

Fixing Avidemux "Cannot Use That File as Audio Track" Error Avidemux is a popular, free, and open-source video editor designed for simple cutting, filtering, and encoding tasks. It is beloved for its ability to handle video without re-encoding, making it incredibly fast. However, one of the most common and frustrating hurdles users face is the error message:

The audio is packed within an unsupported container, such as a high-definition video container (e.g., .mkv or .ts) that contains only audio.

If the error persists, consider pre-processing your files before loading them into Avidemux:

Think of an audio container file, like an MP4 or MKV, as a shipping box. Inside the box is the actual audio stream, but the box has its own complex labeling and structure. Avidemux's audio muxer is designed to directly pick up the raw audio product on the factory floor, not to unpack a box that's been taped shut first.

In this article, we will explore why this error happens and provide three distinct methods to fix it so you can finish your project. avidemux cannot use that file as audio track

Files with VBR can sometimes cause header errors during the import process.

are actually MP4 containers containing only audio. Avidemux cannot "peel" the audio out of these when they are chosen as an external source. Unsupported Codecs : Certain codecs like

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:

To help tailor the best solution for your project, please let me know: What is your original audio file (MP3, WAV, M4A)? Did you download the audio file, or record it yourself? Fixing Avidemux "Cannot Use That File as Audio

If you are comfortable with command-line tools, FFmpeg is the fastest way to fix file container issues.

Use ffmpeg (command line) or Audacity to convert:

ffmpeg -i input_audio.m4a -acodec copy -absf adts output_audio.aac Use code with caution.

If the audio file was downloaded or recorded improperly, the metadata may be unreadable. ✅ How to Fix the Error 1. Convert the Audio to WAV If the error persists, consider pre-processing your files

, a very common format, Avidemux cannot use an AAC file inside an MP4 container. It specifically requires an ADTS-encapsulated AAC stream. ADTS (Audio Data Transport Stream) is a simple way to packetize AAC for streaming or direct muxing, and it's the only AAC container Avidemux can handle for external tracks.

| Possible Cause | Explanation | |----------------|-------------| | | Avidemux expects PCM (uncompressed) or specific compressed formats (MP2, AC3, AAC). Some MP3 or AAC files with exotic encoding settings may be rejected. | | Sample rate mismatch | Avidemux internally works with certain sample rates (e.g., 44.1 kHz, 48 kHz). Rare rates (8 kHz, 96 kHz) may cause failure. | | File structure corruption or non-standard headers | Not all WAV or MP3 files strictly follow standard headers (e.g., WAV with extra chunks). | | Multi-channel layout not supported | Avidemux has limited support for 5.1/7.1 channels when adding external audio; stereo/mono is safest. | | Container-wrapped audio | Using a video file (e.g., MKV with audio) as the “audio track” will fail unless the internal stream is truly raw-audio compatible. | | File permissions or path issues | Non-ASCII characters in path, network drive with slow access, or read-only attribute. |

Certain MP3 files with specialized metadata (like Traktor tags) can confuse the software, causing it to misinterpret the file's structure.