Cannot load mod-ptichshifter plugins

Getting Stuff Done How do I .... ?
#1

I’ve installed mod-pitchshifter from the KXStudio repositories in Debian (Sid/Unstable):

mod-pitchshifter:
  Installed: 5:20191001.5
  Candidate: 5:20191001.5
  Version table:
 *** 5:20191001.5 500
        500 http://ppa.launchpad.net/kxstudio-debian/plugins/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status

It provides a few different plugins, which I can load in Carla, but not in Ardour. For instance, 2Voice give the following error:

URI: http://moddevices.com/plugins/mod-devel/2Voices
Bundle: file:///usr/lib/lv2/mod-2voices.lv2/
Unsupported required LV2 feature: 'http://lv2plug.in/ns/ext/buf-size#fixedBlockLength'.
Unsupported required LV2 feature: 'http://lv2plug.in/ns/ext/buf-size#powerOf2BlockLength'.

Any ideas if that can be fixed?

#2

The answer appears to be “No, not by Ardour”

See (Ardour6) Unsupported required LV2 feature - #2 by x42

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#3

Ah, thanks for clarifying.

#4

Doesn’t fix this issue, but…highly recommend the rubberband plugins for pitch shifting. Very intuitive and high quality :slight_smile:

#5

Rubberband is builtin to Ardour, no need for plugins unless you want automation …

#6

Oh haha! I always install rubberband-lv2 on Debian so that I have access to it - what’s the other way to access it?

#7

The plugin isn’t builtin, Rubberband is. Pitch shifting is an editing operation in Ardour.

#8

Ah I see, got it! Is it nondestructive in the same way the plugin is?

#9

There is zero destructive editing in Ardour.

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#10

Maybe destructive was the wrong word. What I meant is that with the plugin, I can easily go back and edit parameters (perhaps I want to try a different pitch - I use this a lot with karaoke tracks) without having to undo and try again.

#11

Fair point. In Ardour it’s what we internally call a “filter” so it writes a new file. The plugin does offer more flexibility by running in realtime …

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