FR: MTransformer
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- KVRian
- 847 posts since 20 May, 2010
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.
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.
- KVRian
- 1094 posts since 23 Sep, 2006
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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- KVRian
- Topic Starter
- 847 posts since 20 May, 2010
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.
Happens before any semitone pitchshifting takes place.KEEP ABOVE 20KHZ.
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.
Does not work for the (Transformation graph) since frequencies above 20.0KHZ can't be reached.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.
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.
- KVRian
- 1094 posts since 23 Sep, 2006
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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MeldaProduction MeldaProduction https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=176122
- KVRAF
- 14325 posts since 15 Mar, 2008 from Czech republic
Well, sorry folks, that's a no. Too many complications for such a rare thing.
