вс, 29 янв. 2023 г., 14:31 Andrew Randrianasulu <randrianasulu@gmail.com>:


вс, 29 янв. 2023 г., 13:35 Andrea paz <gamberucci.andrea@gmail.com>:
>  2. having some tooling that can do macro alignment, independent of metadata (for example by audio fingerprinting)
> for kdenlive someone also made an external tool <https://www.youtube.com/watch?v=mypKKK-Se7A>

Alignment using timecodes for Professional productions was addressed
in MantisBT 448
(https://www.cinelerra-gg.org/bugtracker/view.php?id=448). The "Align
timecodes" tool came into being there. But the pro who created the
issue concluded:
"I have tested the 'align timecodes' function in the new version and
am very happy to say that is working wonderful! Along with the 'To
clip' function I can now make synced up subclips. I believe that to my
knowledge Cinelerra GG is now the first FLOSS video editing program to
support timecode syncing with subclip functionality: that's a big
premiere! Thanks to everyone involved and especially PhyllisSmith.

Few notes for further improvements:
- A batch function would be great, especially to already sync up the
clips from the 'Resources' window.
- When I use the 'align timecodes' function the timecode of the whole
sequence changes to the timecode of the clip I'm syncing. I have not
seen this in other editing programs and don't think this is a useful
feature, I think it would be better if the timecode of the sequence
stays untouched and the clips stays in place."

It would be nice to be able to do alignment of various audio/video
tracks with an external audio track in batch, all at once, in the
Resources window, before getting to the timeline.
Question: is it possible to modify and use the script linked by Stefan in CinGG?

I think it uses kdenlive specific editing functions? And I do not know enough about xml generated by cingg for making it work for us or guide its author to do it..


but there are some python projects on github



in java



https://github.com/alopatindev/sync-audio-tracks


also this. Uses same process as kdenlive related program , but compiles into standalone program and including scripts use it + ffmpeg (downsample audio for faster processing) for calculating delay, but between two files only ....




none of them (?) works as is for providing timecode offset for embedding in media files so align via timecode will work, for example.

I'll keep searching! (there is related problem of aligning text with its audio, but this is another area of research, it just showed up initially  via github search,)



> 4. export this in either some EDL format or multitrack format being NLE independent.

As for interchange between various programs, I don't think CMX3600 is
viable; it is too limited and not well supported by modern programs.
Nowadays AAF (https://en.wikipedia.org/wiki/Advanced_Authoring_Format)
is used as an interchange format; I believe it is based on Avid MXF.