avidemux+cannot+use+that+file+as+audio+track

Avidemux+cannot+use+that+file+as+audio+track May 2026

The error message "Cannot use that file as audio track" in Avidemux typically occurs because the software expects a raw, elementary audio stream rather than a file wrapped in a container. Common Causes

Container Incompatibility: Avidemux often cannot import audio files that are themselves inside containers like .mp4, .m4a, or .ogg as external tracks.

Unsupported Formats: While it supports common formats like WAV (16/24-bit), MP2, MP3, AC3, and DTS, it may struggle with certain AAC encodings unless they are in an ADTS or LATM envelope.

Version Issues: Older versions may have bugs with specific codecs that are fixed in newer nightly builds. Recommended Solutions Cannot use mp3 as audio track - avidemux.org

The error message "Cannot use that file as audio track" in Avidemux typically occurs because the software expects raw audio streams rather than audio stored within a container like MP4 or M4A when importing external tracks. Primary Causes of the Error

Unsupported Container Format: Avidemux cannot invoke demuxers for external audio tracks. If you try to add an .m4a or .mp4 file as an external track, it will fail because these are containers, not raw streams.

Encapsulation Issues: For AAC files, Avidemux specifically requires the audio to be in a raw ADTS or LATM envelope. Standard M4A files from iTunes or Audacity are often rejected for this reason.

Bitrate and Bit-Depth Restrictions: External audio tracks may fail if they use incompatible bit rates; specifically, some users find that audio rendered at 16-bit or lower works more reliably.

Metadata Corruption: Excess metadata at the head of a file (common in files from Traktor or similar DJ software) can confuse Avidemux, causing it to misinterpret frame headers and reject the file.

Version Mismatch: 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

To resolve this, you must provide Avidemux with a compatible raw audio format. 1. Convert to a Supported Raw Format

Convert your audio file to one of the following formats, which are natively supported as external tracks: MP3 (Constant Bit Rate is most stable). AC3. WAV (16-bit or 24-bit PCM). Raw AAC (ADTS-encapsulated). 2. Use FFmpeg for Quick Remuxing

If you have an M4A or MP4 file and want to strip it to a raw stream for Avidemux, you can use the FFmpeg command line tool:

# To extract raw AAC from an M4A container ffmpeg -i input.m4a -acodec copy -bsf:a aac_adtstoasc output.aac Use code with caution. Copied to clipboard 3. Adjust Metadata avidemux+cannot+use+that+file+as+audio+track

If you suspect metadata is the issue, you can try "cleaning" the file by running it through a simple converter or a metadata stripper. Removing the first several bytes of a file that contains Traktor metadata has been known to fix rejection issues.

Part 3: Step-by-Step Troubleshooting Workflow

Follow this exact sequence when you see the error.

Alternative: Replace Audio Without Avidemux’s “External Track”

If you keep getting the error, bypass it entirely:

  1. In Avidemux:

    • Video → Copy
    • Audio → Track 1 → Copy (keep original video audio as placeholder)
    • Output format: MP4 Muxer or MKV Muxer
    • Save as temp_video.mkv

  2. Use FFmpeg to replace the audio:

ffmpeg -i temp_video.mkv -i fixed_audio.wav -c:v copy -map 0:v:0 -map 1:a:0 -c:a aac -shortest final_video.mp4

This avoids Avidemux’s external audio limitation completely.

When to ask for help / what to provide

If these steps fail, provide:

  • The audio file’s MediaInfo output (codec, container, sample rate, channels).
  • The Avidemux version and OS.
  • Exact steps you took and the full error message or screenshot.

This will let others give a precise fix or a one-line ffmpeg command tailored to your file.

The error message "Cannot use that file as audio track" in Avidemux typically occurs because the software cannot decode the specific audio format or the file lacks a valid header for external synchronization.

How to Fix "Cannot Use That File as Audio Track" in Avidemux

Avidemux is a powerful, lightweight tool for quick video editing, but it can be picky about external audio sources. If you are trying to add a music bed or a voiceover and hit this wall, it is usually a compatibility issue. 🛠 Quick Fixes 1. Convert to WAV

Avidemux has the highest compatibility with uncompressed PCM WAV files. Use a tool like Audacity or an online converter. Export your audio as WAV (Microsoft) 16-bit PCM.

In Avidemux, go to Audio > Select Track and try adding the WAV file. 2. Check Sample Rates The error message "Cannot use that file as

Avidemux sometimes struggles if the audio sample rate doesn't match standard video frequencies. Ensure your audio is set to 44100 Hz or 48000 Hz.

Non-standard rates (like 22050 Hz) can trigger the "cannot use" error. 3. Strip Metadata

Files with heavy ID3 tags or embedded album art can confuse Avidemux's simple parser. Save a "clean" version of the audio without any metadata. Simple export tools often strip these automatically. 📂 Common Causes

Unsupported Codecs: While Avidemux supports MP3 and AAC, specific variable bitrate (VBR) versions can cause failures.

Missing Headers: If the file was recorded on a mobile device, it might be missing the header information Avidemux needs to calculate the track length.

Container Mismatch: Attempting to use a .m4a or .ogg file directly often fails; these should be converted to .mp3 or .wav first. 🚀 Advanced Method: Using Command Line (FFmpeg)

If you have many files or want a guaranteed fix, use FFmpeg to "clean" the audio track for Avidemux:

ffmpeg -i input_audio.mp3 -vn -acodec pcm_s16le -ar 44100 output_audio.wav This command: Removes video data (-vn) Converts to standard PCM 16-bit (-acodec pcm_s16le) Sets the rate to 44.1kHz (-ar 44100)

💡 Pro Tip: 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’ve run into the "Cannot use that file as audio track" error in Avidemux, it usually means the software is struggling with the file's container format or a sample rate mismatch, even if the audio itself seems fine.

Here is a quick guide to understanding why this happens and how to fix it. Why it happens

Avidemux is picky about external audio tracks. The error typically triggers for two reasons:

Format Incompatibility: While Avidemux supports many codecs (like MP3 or AAC), it often fails to "mux" (combine) them if they are wrapped in certain containers or have unusual headers. In Avidemux:

Sampling Rate Issues: If your video is 44.1kHz and your audio track is 48kHz, Avidemux sometimes rejects the link to prevent sync issues. How to fix it 1. Standardize the Audio File

The most reliable fix is to convert your audio file into a "clean" version before importing it.

Use a tool like Audacity or an online converter to export the audio as a WAV (uncompressed) or a standard MP3.

WAV files have the highest success rate because they lack the complex metadata that often confuses Avidemux. 2. Check the "Audio Configuration"

Before importing the external file, ensure your video's audio output is set correctly:

In the left-hand sidebar, under Audio Output, try changing "Copy" to MP3 (lame) or AAC (lav).

Click Filters under Audio Output and ensure the Resampling checkbox is either off or matches your source file’s bitrate. 3. Use the "Append" Method

Sometimes Avidemux prefers it if you don't use the "Select Track" menu immediately.

If you have the audio and video as two separate files, try opening the video first, then go to File > Append (though this is primarily for joining files, it can sometimes bypass header checks). 4. The "Muxer" Workaround

If Avidemux simply won't cooperate, use a dedicated muxing tool like MKVToolNix. Drag your video and your audio file into MKVToolNix. Uncheck the original audio and keep the new audio. Hit "Start multiplexing."

Once you have this new file, open it in Avidemux to do your final edits.

Pro Tip: Always make sure the audio file duration matches your video duration before importing, or you’ll end up with a "drifting" sync error that’s much harder to fix later.

Based on the search query avidemux+cannot+use+that+file+as+audio+track, the user is experiencing a specific limitation where Avidemux rejects an audio file (likely due to format incompatibility, codec support, or indexing issues) when trying to add it to a video project.

Here is a feature proposal to solve this problem directly within the application:

4. Update Avidemux

Make sure you're using the latest version of Avidemux. Visit the official website to download the latest version, which may include bug fixes or support for additional audio formats.