Pitch compensation on speed effect doesn't seem to work

Eugen Mohr eugen.mohr at gmx.net
Sat Feb 15 16:06:37 GMT 2020


The rubberband lib integration into MLT is not proper done so far. You
have to manually do the following:

lib/pkgconfig/fftw.pc rename to fftw3.pc

compile rubberband

compile vamp-plugin-sdk

compile ladspa-sdk

On the end compile and merge MLT again. This should enable rubberband in
MLT which will handle the pitch compensation.

Or you wait until the rubberband integration is done correctly.

Am 15.02.2020 um 16:02 schrieb Alistair Riddoch:
> I was really happy to see this commit a couple of days ago:
> 402c251eae642ff3352bb4b8895ee882503eddfc
> Add pitch compensation to speed effect (requires MLT git)
> My videos depend on having pitch compensated audio for time
> accelerated video, and the only way I've been able to do it is by
> exporting the audio, and modifying the tempo in Audacity. I'm really
> thankful this has been added, but I don't seem to be able to get it to
> work. The audio pitch is not affected by the setting.
> I've rebuilt mlt from git master, verifying
> that bmatherly/pitch_compensate is included.
> I've rebuilt kdenlive from git master, completely from a clean tree.
> What could I be missing, and what more information is needed to work
> out why?
> Al
> --
> Alistair Riddoch
> alriddoch at googlemail.com <mailto:alriddoch at googlemail.com>
> http://alistairriddoch.org/
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