Pitch compensation on speed effect doesn't seem to work

farid abdelnour snd.noise at gmail.com
Sat Feb 15 16:28:30 GMT 2020

Do note that the fftw renaming is not necessary on Arch based systems
though. Just install rubberband, vamp-plugin-sdk and ladspa, then compile
mlt from git master...

Em sáb., 15 de fev. de 2020 às 13:06, Eugen Mohr <eugen.mohr at gmx.net>

> Hello
> 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
> http://alistairriddoch.org/

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