If you are trying to use a FLAC or Opus file as an external track, you must change your output format to MKV . MP4 does not support FLAC natively.
Avidemux’s mode hates Variable Bitrate (VBR) MP3 files. When you cut video on keyframes, VBR audio loses sync because the bitrate fluctuates. Avidemux is old-school; it prefers Constant Bitrate (CBR).
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
Avidemux works reliably with:
If you are trying to use a FLAC or Opus file as an external track, you must change your output format to MKV . MP4 does not support FLAC natively.
Avidemux’s mode hates Variable Bitrate (VBR) MP3 files. When you cut video on keyframes, VBR audio loses sync because the bitrate fluctuates. Avidemux is old-school; it prefers Constant Bitrate (CBR). avidemux+cannot+use+that+file+as+audio+track
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 If you are trying to use a FLAC
Avidemux works reliably with: