Cloning the pitch changes from a sample to another like I used in an old software
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- KVRist
- 495 posts since 18 Aug, 2006 from Italy
Years ago, when I was still using Mac OS 7, I used in a studio a very old Mac Classic audio program (Passport Alchemy) which had an interesting feature. One could open an audio sample with some changes in pitch (a short one), open a "Pitch Envelope" curve (not a MIDI pitch bend, the pitch curve was acting directly on the audio, without MIDI), draw it in order to counteract the changes in pitch until the whole sample was sounding as being stable on the same pitch, invert that "Pitch Envelope" curve (with a simple "Invert" command), copy and paste it onto another audio sample (of approximately the same length), and in this way the original pitch changes were cloned to the other sample. It was rather easy. Do you know of any modern software that can do this? It works a little bit in Reaper, but now I need to insert a pitch shifter as effect, draw the automation for it – which produces a lot of extra points – with the risk of moving or deleting the automation points… not at all as easy as in the old Passport Alchemy!
Last edited by XComposer on Thu Apr 01, 2021 10:14 pm, edited 1 time in total.
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- KVRAF
- 2069 posts since 8 Feb, 2013 from Switzerland
Celemony Melodyne? No sample on an another option. I've just ran a test with a sweep. Modulation 0% (from 100%) then sweep disappears and sample's pitch is stable. But not artifact free.
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- KVRist
- Topic Starter
- 495 posts since 18 Aug, 2006 from Italy
OK, I found it! And they are programs I already own. It works in IRCAM AudioSculpt and also in IRCAM-Flux TS2.
In AudioSculpt you can draw curves, invert them with an "Invert" command and apply them to the other files, including curves controlling pitch changes, amplitude, stretching and other useful sound features. If working on pitch changes, as described in my previous message in this thread, the result can be the same I used to obtain with the old Passport Alchemy. Very well.
In TS2, too, you can draw curves and you can clone the pitch changes to other samples in the same way described above, except that it doesn't have an "Invert" command, so, to invert, you must open the curve in a text editor and put a minus before the positive values, and delete it from the negative values. Not difficult, but I would prefer an "Invert" command, of course.
However, in TS2 it's easier to swap the curves, that is to apply a curve that was originally describing pitch to amplitude, for example, or to formants transposition, or to a function controlling the amount of the noisy part of the sound, or to panning, or to stretching, and so on. Great for me.
Both the programs can save curve files, but it's a pity that the curves files produced by each one of them cannot be read by the other.
In AudioSculpt you can draw curves, invert them with an "Invert" command and apply them to the other files, including curves controlling pitch changes, amplitude, stretching and other useful sound features. If working on pitch changes, as described in my previous message in this thread, the result can be the same I used to obtain with the old Passport Alchemy. Very well.
In TS2, too, you can draw curves and you can clone the pitch changes to other samples in the same way described above, except that it doesn't have an "Invert" command, so, to invert, you must open the curve in a text editor and put a minus before the positive values, and delete it from the negative values. Not difficult, but I would prefer an "Invert" command, of course.
However, in TS2 it's easier to swap the curves, that is to apply a curve that was originally describing pitch to amplitude, for example, or to formants transposition, or to a function controlling the amount of the noisy part of the sound, or to panning, or to stretching, and so on. Great for me.
Both the programs can save curve files, but it's a pity that the curves files produced by each one of them cannot be read by the other.