FR: MTransformer

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Feature suggestions for MTransformer.

I want to be able to shift down frequencies above 20.0 KHZ.
I want to retain mangled frequencies above 20.0 KHZ, so that i can see them on spectrograms.

Make aliasing across the whole spectrum appear when frequencies are shifted above the nyquist limit.
Or remove all frequencies that is above 22050Hz, to avoid getting aliasing.

Frequencies should not stack on top of each other between 22049Hz and 22050Hz. if frequencies can't go higher than 22050Hz.

And if frequencies is allowed to go higher than 22050Hz.
Make it generate aliasing + then having a knob to set the oversampling amount and resampling quality.
Or simply remove all frequencies that exceeds the 22050Hz nyquist limit, to avoid getting any aliasing.

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I asked for a similar feature a while ago and Vojtech was kind enough to add the 'Keep above 20khz' button in the globals panel. It doesn't resolve all of the issues, but it should resolve: "I want to retain mangled frequencies above 20.0 KHZ, so that i can see them on spectrograms"... unless I'm misunderstanding what you meant.

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vectorwarrior wrote:but it should resolve: "I want to retain mangled frequencies above 20.0 KHZ, so that i can see them on spectrograms"... unless I'm misunderstanding what you meant.
KEEP ABOVE 20KHZ.
Happens before any semitone pitchshifting takes place.
So the frequencies above 20KHZ is not replaced by original frequencies.

Pitchshifting a sound which only contains the 21148Hz frequency, to be one semitone higher or more.
Simply removes it and not moves it to places which aliasing would do.
vectorwarrior wrote:but it should resolve: "I want to retain mangled frequencies above 20.0 KHZ, so that i can see them on spectrograms"... unless I'm misunderstanding what you meant.
Does not work for the (Transformation graph) since frequencies above 20.0KHZ can't be reached.

And thus the (KEEP ABOVE 20KHZ) feature is working like a highpass filter between the (Transformation graph)
and the (pitch shifter) in:
GLOBALS.

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And about the (GLOBALS).

The (TRANSFORM) parameter in GLOBALS, only morphs the (Transformation graph). Not between 2 different pitchshift settings.

And there is no capability to morph between 2 completely different (GLOBALS) parameter settings.

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Ahh I see, you want to, for example, pitch a sound above 20khz? Where currently it will flat line at 20khz? Yeah, I can see that as a problem.

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vectorwarrior wrote:Where currently it will flat line at 20khz? Yeah, I can see that as a problem.
Good that i am not alone with this.

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Well, sorry folks, that's a no. Too many complications for such a rare thing.
Vojtech
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