Avidemux Cannot Use That File As Audio Track -

The audio file format (e.g., FLAC, OGG, or a specialized AAC container) is not supported, even if the file extension looks standard [1].

The "Cannot use that file as audio track" error is a sign of a fundamental incompatibility, not a bug. By understanding that Avidemux works with raw, elementary audio streams and not container files, you can easily resolve the issue. The simplest and most reliable fix is to convert your audio file to a compatible 16-bit WAV file using a free tool like FFmpeg or Audacity. This process ensures your project can proceed and that your final video will have the audio you intended. For many users, the even simpler alternative is to bypass the issue entirely and use a tool like MKVToolNix to mux the files together without any conversion. With these solutions at hand, that frustrating error message will be a thing of the past.

$$ffmpeg -i input.mp3 -c:a aac output.aac$$ avidemux cannot use that file as audio track

Import this new file into Avidemux via Audio -> Select Track . 2. Change the Audio Muxer Settings

Fortunately, while the list is specific, Avidemux does support several reliable audio formats for use as external tracks. These include: The audio file format (e

The "Avidemux cannot use that file as audio track" error can usually be resolved by checking and possibly converting your audio file to a compatible format or adjusting settings within Avidemux. If issues persist, consider seeking help from Avidemux forums or communities for more specific advice.

Click the button under the Muxer dropdown and ensure the settings match the properties of your audio file. 3. Use the "Audio Process" Workaround The simplest and most reliable fix is to

While Avidemux supports many formats, certain modern or proprietary versions of AAC or Opus can occasionally cause issues depending on your version of the software. Step-by-Step Solutions 1. Convert the Audio to a Standard Format

If Avidemux rejects your current audio file, the easiest workaround is to transcode it into a standard, constant-bitrate (CBR) format that Avidemux natively accepts.

occasionally triggers a generic rejection if the header information is malformed. Compressed vs. Uncompressed: