Avidemux+cannot+use+that+file+as+audio+track [upd] — Plus & Recent

This is a story about a filmmaker named Elias who encounters a stubborn technical error while finishing his masterpiece.

The clock in Elias’s studio ticked toward 3:00 AM, the rhythmic sound mockingly keeping pace with the pulsing vein in his temple. He was one click away from finishing The Silent Echo, a documentary three years in the making. All he needed to do was mux the final, remastered orchestral score into the video container.

He opened Avidemux, selected his video file, and navigated to the "Select Track" menu for the audio. He located the high-fidelity file he’d spent weeks perfecting, clicked "Open," and waited for the familiar green light of progress.

Instead, a cold, grey dialogue box appeared like a tombstone on his screen: "Cannot use that file as audio track."

Elias blinked. He tried again. The same blunt rejection stared back at him. He checked the format—it was a standard WAV file. He checked the sample rate—48kHz, perfectly normal. He even tried renaming the file, as if the software simply didn't like the name "Final_Score_v27_REAL_FINAL."

"Come on," he whispered to the glowing monitor. "I’ve given you everything. Why won't you take it?"

The silence of the room felt heavier. He began a frantic dance of troubleshooting. He converted the audio to MP3, then to AAC, then back to a different flavor of WAV. Each time, Avidemux remained an unyielding gatekeeper. It wasn't just a technical glitch; it felt like a personal snub from the machine he had trusted with his vision.

Desperate, he dove into the digital underworld of forum threads from 2012. He scrolled through endless pages of "Me too!" and "Fixed it by restarting," until he found a cryptic post by a user named CodecGhost.

“Avidemux is a picky eater,” the post read. “Sometimes it hates the metadata more than the data. If the header is bruised, the door stays locked.”

Elias realized he had been exporting the audio with complex "extensible" headers from his professional workstation. He stripped the file down to its barest essentials—no tags, no metadata, just raw, unadorned pulse-code modulation.

With trembling fingers, he loaded the stripped file. He clicked "Open."

The dialogue box stayed hidden. The track appeared in the slot, ready and waiting. Elias hit "Save," and watched the progress bar sprint toward 100%. As the sun began to bleed through his blinds, the "File saved successfully" notification appeared—the most beautiful sentence he had ever read.

: Avidemux is most stable with uncompressed PCM (WAV) files. Use a tool like to convert your audio file to a 16-bit PCM WAV before importing. Check the Sampling Rate

: Ensure the audio file's sampling rate (e.g., 44100Hz or 48000Hz) matches the video's properties. Incompatibilities here often trigger the error. Re-mux with MKVToolNix : If you are trying to add a track to an MKV, use MKVToolNix

instead. It is far more robust for multiplexing audio and video than Avidemux. Step-by-Step Troubleshooting Guide 1. Verify File Compatibility Avidemux often struggles with compressed formats like AAC, M4A, or variable bitrate MP3s when imported as external tracks. .m4a, .wma, or .flac. Preferred: .wav (PCM) or .mp3 (Constant Bitrate). 2. How to "Fix" the Audio File

If Avidemux rejects your file, the most reliable fix is converting it to a standard format: Open the audio file in File > Export > Export as WAV WAV (Microsoft) signed 16-bit PCM In Avidemux, go to Audio > Select Track , check the "Enabled" box, click the dropdown, and select Add audio track to point to your new WAV file. 3. Update Avidemux

Older versions of Avidemux have known bugs with specific audio headers.

Ensure you are using the latest nightly build or stable release from the official Avidemux website 4. The "Dummy Video" Trick If you are trying to save

audio or combine audio with a still image and getting this error:

Ensure a video file is actually loaded first. Avidemux cannot handle an "Audio Track" without a video stream to "attach" it to.

If you don't have a video, you may need to use a different tool like Alternative Tool: FFmpeg (Command Line)

If Avidemux continues to fail, you can force the audio into the video container using this simple command (replace filenames accordingly):

ffmpeg -i video.mp4 -i audio.wav -c:v copy -c:a aac output.mp4 : Keeps the video quality identical. avidemux+cannot+use+that+file+as+audio+track

To fix the "Cannot use that file as audio track" error in Avidemux, you typically need to convert your audio into a raw format or a simpler container. Avidemux often fails to import audio tracks that are already muxed into modern containers like avidemux.org 1. Unsupported File Containers

Avidemux often cannot invoke demuxers for external audio tracks that are already inside a container avidemux.org : You are likely trying to add an file that is technically a "video container without video" avidemux.org to export the audio as a file before importing it into Avidemux avidemux.org 2. Required Audio Formats

Avidemux has specific requirements for external tracks depending on the version and the intended use avidemux.org Supported Formats : MP3, WAV (PCM), AC3, and MP2 avidemux.org AAC Requirement : If using AAC, it must be (ADTS- or LATM-encapsulated), not inside an avidemux.org Secondary Tracks : If you are adding a audio track, it must be (Constant Bit Rate), such as MP3 CBR or AC3 3. Outdated Software

The error is more common in older versions that lack support for certain modern codecs. : Ensure you are using at least Avidemux 2.8.1 or the latest nightly build avidemux.org 4. Step-by-Step Replacement Guide If you need to swap the audio in your video file: New user getting "Cannot use that file as audio track"

The error "Cannot use that file as an audio track" in Avidemux typically occurs because the software is highly specific about the containers and formats it accepts for external audio. Unlike standard media players, Avidemux often requires "raw" streams rather than audio wrapped in common containers like MP4. Why This Happens

Container Conflict: Avidemux cannot use audio that is already muxed into a container like .m4a or .mp4 as an external track. It expects the raw stream (e.g., ADTS-encapsulated AAC).

Unsupported Formats: Certain formats like .ogg or Vorbis are often supported for re-encoding but may not be accepted as external input tracks.

Bit-Depth Issues: High bit-depth files (e.g., 32-bit WAV) can trigger errors; Avidemux generally prefers 16-bit or 24-bit WAV. Quick Fixes

Convert to WAV (16-bit): Use a tool like Audacity to export your audio as a 16-bit PCM WAV file. This is the most "universally acceptable" format for Avidemux.

Use Raw Streams for AAC: If you are using AAC, ensure it is in a raw format like .aac (ADTS-encapsulated) rather than an .m4a container.

Update Avidemux: Ensure you are using at least version 2.8.1 or a recent nightly build, as newer versions have improved demuxer support.

Alternative Tool: For quickly swapping audio tracks without re-encoding, MKVToolNix is often more flexible than Avidemux for handling various audio containers. How to Properly Add the Track

New user getting "Cannot use that file as audio track" - avidemux.org

The error message " cannot use that file as audio track " in Avidemux typically occurs when the software's demuxer cannot properly parse the external audio file you are trying to add. This often stems from container incompatibility, metadata issues, or outdated software versions. avidemux.org Common Causes & Solutions Container Incompatibility (M4A/MP4/MKV)

: Avidemux cannot use audio that is already inside a container (like : You must provide the "raw" audio stream (e.g., ) or convert the file to a standard before importing. Metadata Interference

: Files from certain sources (like Traktor) may have metadata headers that confuse Avidemux, leading it to misread the file's sample rate or format.

: Use a tool to strip metadata or "clean" the audio file by re-saving it in a basic audio editor. Unsupported Bit Depth or Codecs

: Avidemux may reject specific high-fidelity formats, such as 24-bit WAV : Convert the audio to 16-bit WAV at 44.1kHz or 48kHz for the best compatibility. Outdated Software Version

: Older versions of Avidemux (e.g., 2.7.x) had known bugs related to external audio track recognition. : Upgrade to the latest stable release (e.g.,

or newer) or try a nightly build, which often includes fixes for these parsing errors. avidemux.org How to Correctly Add an External Track Cannot use mp3 as audio track - avidemux.org

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: This is a story about a filmmaker named

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.

Here’s a post you can use on forums like Reddit, VideoHelp, or Super User:

Title: Avidemux error: "Cannot use that file as audio track" – how to fix?

Post:

Hi everyone,

I’m trying to replace or add an external audio track in Avidemux, but when I go to Audio → Select Track and choose my file (MP3 or M4A), I get the error:

Cannot use that file as audio track

Both the video file and the audio file play fine in other players. I’ve tried:

Converting the audio to WAV and PCM
Using MP3 in CBR mode
Matching sample rates (48 kHz)
Loading audio through Audio → Main track → External

Has anyone found a reliable workaround? Is there a specific format Avidemux expects?

Thanks!

If you want a shorter version for social media (e.g., Twitter/Mastodon):

Getting "cannot use that file as audio track" in Avidemux when adding external audio. File plays fine elsewhere. Tried WAV, MP3 CBR, matching sample rate. Any fix? #Avidemux

Troubleshooting Avidemux: "Cannot use that file as audio track" Error

Avidemux is a popular, open-source video editing software that allows users to edit and manipulate video files. While it's a powerful tool, users can encounter errors, such as the frustrating "Cannot use that file as audio track" message. In this article, we'll explore the possible causes of this error and provide step-by-step solutions to help you resolve the issue.

What does the error message mean?

When you try to add an audio file to your project in Avidemux, you may encounter the "Cannot use that file as audio track" error. This message indicates that Avidemux is unable to read or import the audio file you've selected. There are several reasons why this might happen, and we'll discuss them below.

Possible causes of the error

Incompatible audio format: Avidemux supports a wide range of audio formats, but it's not compatible with all of them. If your audio file is in an unsupported format, you may encounter this error.
Corrupted or damaged audio file: If your audio file is corrupted or damaged, Avidemux may not be able to read it, resulting in the error message.
Incorrect file path or permissions: If the audio file is located in a directory with restricted access or has incorrect permissions, Avidemux may not be able to read it.
Audio file not supported by Avidemux: Some audio files, such as those with DRM protection, may not be supported by Avidemux.
Outdated Avidemux version: If you're using an outdated version of Avidemux, it may not support certain audio formats or have bugs that cause this error.

Solutions to the "Cannot use that file as audio track" error

To resolve the issue, try the following solutions:

Step 6: Convert the Audio File Externally

Download Audacity (free) or use FFmpeg. Convert the file to:

Standard WAV (16-bit, 48kHz) – This is the universal key to Avidemux.
Save the file as clean_audio.wav.

Now retry Step 5 with the WAV file. Avidemux will always accept a standard WAV file when Audio Output is set to PCM or Copy (if the container allows it). This will let others give a precise fix

User Benefits

Workflow Continuity: Eliminates the need to exit the application and use external tools like Audacity or FormatFactory.
Reduced Frustration: Turns a "hard stop" error into a solvable "one-click" step.
Frame Accuracy: By converting to WAV/PCM internally, the audio becomes easier to cut and sync, avoiding the "audio drift" issues common with compressed formats.

Example with FFmpeg (fastest):

ffmpeg -i your_audio.mp3 -ar 48000 -ac 2 -c:a pcm_s16le output.wav

Or to CBR MP3:

ffmpeg -i your_audio.opus -ar 48000 -b:a 192k output_cbr.mp3

Bottom Line

“Cannot use that file as audio track” = Avidemux’s polite way of saying “I don’t like this file’s format, sample rate, or codec.”
The universal fix: Convert to 48 kHz WAV (PCM 16‑bit) and retry. If still fails, use FFmpeg to mux externally.

Here’s a social media post (optimized for Reddit, forums, or Twitter) addressing the common Avidemux error: “Cannot use that file as audio track”.

Option 1: Reddit / Forum Style (Helpful & Detailed)

Title: Fix for Avidemux error: "Cannot use that file as audio track"

Post: Spent 20 minutes fighting this today. If you're trying to add an external audio track in Avidemux and getting the red error "Cannot use that file as audio track" — here’s why and how to fix it.

🔍 Why it happens:
Avidemux is very picky about audio formats for external tracks. It often rejects MP3, AAC, or M4A files, especially if the sample rate or codec doesn't match the video’s expected container.

✅ Solutions that work:

Re-wrap the audio (fastest fix)
Use ffmpeg (or Audacity) to convert the audio to WAV (16-bit PCM) or AC3.
FFmpeg command:
ffmpeg -i input_audio.m4a -c:a pcm_s16le output_audio.wav
Then load the WAV file in Avidemux → Audio → Select Track → External Track.
Use “Save as WAV” in Audacity
Import your audio → export as 16-bit PCM WAV. Works every time.
Match the video’s audio format
Go to Audio → Main Track → External Track, then choose Copy or Convert to PCM (not “Copy” if using MP3/AAC externally).
Don’t load the audio first
Open the video → Audio → Main Track → External Track → browse for your audio file. Never drag/drop an audio file first.

💡 Pro tip: Avidemux works best with PCM WAV or AC3 for external tracks. MP3/M4A almost always triggers that error.

Hope this saves someone the headache! 🎬

Option 2: Twitter / Mastodon (Short & Punchy)

Getting “cannot use that file as audio track” in Avidemux?

Fix: Convert your audio to 16-bit WAV first (Audacity or ffmpeg). Avidemux hates MP3/M4A as external tracks.

Also: Add via Audio → Main Track → External Track — never drag & drop.

#Avidemux #VideoEditing #LinuxVideo

Option 3: Quick troubleshooting checklist (for a forum reply)

Fix “cannot use that file as audio track” in Avidemux:

Convert audio to PCM WAV (16-bit)

In Avidemux: Audio → Main Track → External Track

Set Audio Output to “Copy” or “PCM”

Avoid MP3, AAC, M4A, OGG as external tracks

Make sure video container isn’t set to “Copy” for audio when using external

1. The "Soft" Error Handler (UI Change)

Instead of the current hard error modal dialog, the new behavior would be:

Current Behavior: User clicks "Select File" -> Error: "Cannot use that file as audio track." -> Action: User clicks OK and is stuck.
New Behavior: User clicks "Select File" -> Warning Dialog: "The file 'audio.flac' uses a codec not supported for direct editing. Would you like Avidemux to convert it to a compatible format?"
- [Convert & Load] (Recommended)
- [Cancel]