[Cin] Audio Offset Finder

Stefan de Konink stefan at konink.de
Sat May 18 20:20:24 CEST 2024


Op 5/18/24 om 16:49 schreef Andrea paz via Cin:
> A nice command-line tool that reads the offset between two audio
> tracks, thus allowing them to be manually synchronized.
> Unfortunately it is made with Python, but I was wondering if it is
> possible to import it into "i" shell commands, so as to provide sync
> information of the various assets. It has the Apache license.
> https://github.com/bbc/audio-offset-finder

I had starred this project as well. There are also some alternatives in 
C. From my perspective this kind of work should be separated from the 
editing workflow. I think what we "poor people without timecode" want is 
our assets to be timecoded and be available aligned in a project where 
we would just throw all our content in.

So while the ideal would be "everything is timecoded". I think my focus 
would be to get everything in OpenTimelineIO as some sort of container / 
EDL format. Have that in some way related towards each other and 
pseudo-timecode them. OpenTimelineIO to Cinerella is an option, having 
the timecoded content handled in Cinerella should be(?) already supported.

What I then would like to have in my editor: the ability to ALWAYS be 
able to sync up the content. Hence select two clips (could be audio, or 
video) on the timeline, press "sync up" and it would do it by timecode.

To me the whole process of syncing up content within the editor does not 
make sense. Why would you want to load the editor up with stuff that 
requires all kind of heuristics and specialistic work, while that 
editors job is to make an EDL?

What Cinelerra is missing (even for existing containerized assets) is 
the "sync up" button. And we all know how easy it is to have the audio 
track to move by a little so slightly by our own inability to lock some 
track when editing. Or worse: when align to frame is not enabled.

-- 
Stefan

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