Avidemux+cannot+use+that+file+as+audio+track [exclusive] Jun 2026

| Supported Format | Raw Stream Type | How to Prepare/Notes | | :--- | :--- | :--- | | | Raw PCM | Usually works. Best to use 16-bit PCM as a reliable choice for external tracks to avoid issues. | | MP3 | Raw MP3 | Supported, can be finicky. If you get the error, re-encode or extract with FFmpeg. | | AC3 & E-AC3 | Raw AC3/E-AC3 | Well supported for external tracks. | | AAC | ADTS/LATM-encapsulated | Requires extraction: ffmpeg -i input.m4a -c copy output.aac . | | Unsupported | Audio in container | Convert: e.g., M4A/MP4 → extract raw AAC with FFmpeg; OGG/FLAC → convert to WAV or MP3. |

The most reliable way to fix this error is to convert the audio file into a format that Avidemux supports flawlessly, such as or standard CBR MP3 . Tool: Use Audacity or FFmpeg. Steps: Open the problematic audio file in Audacity. Go to File > Export > Export as WAV .

Check , then check Play another media synchronously . Click Extra media and add your external audio file.

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If you prefer a graphical user interface, use the open-source editor Audacity to strip out confusing metadata and containers. the problematic audio file into Audacity. Go to File > Export Audio .

This error typically happens when there is a mismatch between the audio container format, the underlying codec, or the project sample rate. Why This Error Happens

This is the most common and dependable fix because it directly addresses the root cause: the file being in an unsupported container format. | Supported Format | Raw Stream Type |

Convert your audio file to one of the following formats, which are natively supported as external tracks: (Constant Bit Rate is most stable). AC3 . WAV (16-bit or 24-bit PCM). Raw AAC (ADTS-encapsulated). 2. Use FFmpeg for Quick Remuxing

In the case of AAC, it's even more specific: Avidemux needs it encapsulated in an (Audio Data Transport Stream) or LATM (Low-Overhead Audio Transport Multiplex) stream. This is essentially a thin wrapper that presents the AAC data in a stream-ready format.

Certain formats like .ogg or Vorbis are often supported for re-encoding but may not be accepted as external input tracks. If you get the error, re-encode or extract with FFmpeg

If you answer these three questions correctly, Avidemux will work beautifully. If you ever get stuck, switch to and Audio Output = PCM – that combination will save you every time.

In short, Avidemux (like MP4, M4A, MKV, or WebM) when adding them externally. It needs the raw, "naked" audio stream to work with.

: Older versions of Avidemux have more limited support for modern external audio streams. Using the latest release (e.g., version 2.8.1 or later) is often recommended as a first step to resolve these bugs. How to Fix the Error

ffmpeg -i video.mp4 -vn -ar 48000 -ac 2 audio_for_avidemux.wav

Thanks!