(Pseudo) Time strech

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My question is simple, I just ask:
How do you make a (pseudo) time stretch on LMMS?
Thanks ;)
DidJaws wrote: How do you make a (pseudo) time stretch on LMMS?
What is that?
Do you mean, like stretching an audio file, to a certain length, to fit a certain length in the
piano roll or music composition?

Or are you speaking of changing the Tempo, of a particular sound?
The first proposition, I want to do this result : https://youtu.be/xCd6uzkzUAc
DidJaws wrote: I want to do this result : https://youtu.be/xCd6uzkzUAc
That shows a black cat ?!
Not, the voice was edit on a sampler.