Avidemux Cannot Use | That File As Audio Track __top__

Solved: "Avidemux Cannot Use That File as Audio Track"

• Incompatible Sample Rate: Avidemux requires the external audio track to have the same sample rate as the video’s current audio track (or the project’s output setting). Common mismatches: video uses 48 kHz, external audio uses 44.1 kHz.
• Compressed or Variable Bitrate (VBR) Audio: Avidemux works best with PCM (uncompressed) or constant bitrate (CBR) audio. Many MP3 and AAC files use VBR, which Avidemux cannot reliably synchronize.
• Non-zero Start Time (Offset): If the external audio file does not start exactly at 0.0 seconds (e.g., it has leading silence trimmed elsewhere), Avidemux may reject it.
• Unsupported Codec in Container: The container format (e.g., M4A with ALAC, or OGG with Vorbis) may not be supported for external tracks. Avidemux prefers raw PCM (WAV) or CBR MP3.
• Channel Count Mismatch: Rarely, a mono external track with a stereo video project may cause rejection, though Avidemux usually handles this.

MP3 (MP2 also works well)

The most reliable way to fix this error is to convert your external audio file into a format Avidemux loves: . While AAC is technically supported, Avidemux can be finicky with raw AAC files. Converting to MP3 almost always resolves the issue.

Solution 2: Verify Audio File Integrity

Result:

Import this new file into Avidemux via Audio -> Select Track . 2. Change the Audio Muxer Settings avidemux cannot use that file as audio track

If your video’s original audio is 48 kHz (standard for video), but your external audio file is 44.1 kHz (standard for CD audio), Avidemux sometimes refuses to combine them without resampling. Since Avidemux does not resample on the fly, it triggers an error. Solved: "Avidemux Cannot Use That File as Audio Track"