... | ... | @@ -23,4 +23,4 @@ If you really want to strech or shorten an audio track you have two options: |
|
|
1. Use mkvmerge's `--sync` option or mmg's corresponding controls `delay` and `stretch by`. For example, if your movie is 2h long and your audio track with the track ID 1 is too short by 30s then you can stretch it by the factor `movie_length / audio_length` or the equivalent `movie_length / (movie_length - audio_too_short)`. For our example you could use `--sync 1:7200/7170`.
|
|
|
2. Use a proper audio processing application like e.g. [Audacity](http://audacity.sourceforge.net/). Such applications can stretch the audio track by inserting new samples in between the old ones (or leave some out in case of shrinking). This is the safer bet, even though it degrades audio quality a bit.
|
|
|
|
|
|
Categories: [merging](Category-merging) |
|
|
Categories: [merging](FAQ#category-merging) |