CALF effects, they do not work.

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CALF effects, they do not work.

Permanent link to this post Posted by Gran Francisco » Tue Oct 31, 2017 9:02 pm

After an automatic update of Audacity 2.1.3 on ubuntu 17.10. x86_64, Calf effects, do not apply. The previous listen if it works, but when the effect is applied, no process occurs. language

In Spanish language
Efectos CALF, no funcionan.
Despues de una actualización automática de Audacity 2.1.3 en ubuntu 17.10. x86_64, los efectos Calf, no se aplican. La se escucha previa si funciona, pero cuando se aplica el efecto, no ocurre ningun proceso. lenguaje
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Re: CALF effects, they do not work.

Permanent link to this post Posted by steve » Wed Nov 01, 2017 1:11 pm

There has been an ongoing problem with Calf plug-ins, which is a shame because they are terrific effects. The problem is not unique to Audacity - I'm not sure about the status right now, but there have also been repeated crash issues with Calf plug-ins in Ardour.

I think that the problem is that the Calf developers take an uncompromising approach, and use very recent libraries, which can cause compatibility issues with older libraries in most mainstream Linux distributions. I get the impression that the distribution packagers don't test thoroughly enough and assume that if the effects build and launch, then they are OK (apologies to the Ubuntu packagers if I am misrepresenting).

I've just tested on Ubuntu 16.04 with the Calf LV2 plug-ins from the Ubuntu repository and Audacity 2.1.2, and it seems that most (but not all) of the Calf plug-ins are mostly working correctly. (Note that Audacity does not have all of the features of real-time DAW applications such as Ardour). One problem that I see is that if one of the Calf plug-ins fails, then all Calf plug-ins will fail until Audacity is closed and restarted.

Sorry but I don't know the solution to this, other than perhaps building both Audacity and the Calf plug-ins from source code and then debugging any problems that arise. Both Audacity and the Calf plug-ins are complex software, so not an easy job. If you know of any skilled Linux developers that would be interested in helping, please send them our way.
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Re: CALF effects, they do not work.

Permanent link to this post Posted by Gran Francisco » Wed Nov 01, 2017 2:56 pm

Thank you very much for the explanation Steve.
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