[Bf-funboard] video and audio sync from multiple sources

Daniel Pocock daniel at pocock.pro
Thu May 14 17:50:54 CEST 2015



This question is about video editing rather than animation.

Let's say that a user has a video recording and they have audio
recordings in separate files, collected by separate devices.

Does Blender provide a convenient way to align the audio files with the
video?  Is this documented anywhere?

When I tried searching for details, Google finds a lot of pages about
the playback sync setting (where audio plays faster than the video),
that is not what I'm looking for.

Does Blender need timestamps embedded in the files or if they exist, can
it use them?  Some professional recording equipment embeds millisecond
timestamps.

Can Blender automatically align audio strips based on analysis of the
content?  I can see this would be possible to do manually by displaying
the waveforms and trying to align the peaks.

Can Blender use EXIF data from video?  My DSLR embeds the time a movie
starts, but it does not have milliseconds, so this is only useful for
getting a rough alignment with audio.


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