Raising pitch of audio region without deadening the sound
When I raise the pitch of an audio region, the sound starts to deaden and it gets softer. Why? What can I do to raise pitch without dampening the signal?
MacBook Pro 15″, macOS 10.14
Question marked as
@chameloeon8 Thanks. I dug into Flex Time and Flex Pitch and discovered a solution to my problem.
I'm working with a one-shot percussion hit -- a crash cymbal hit. I just wanted to pitch it up 7 semitones. I don't care if the length of the region gets changed.
There is no way to change the pitch of a region without using Flex. Flex Pitch isn't useful because I only have 1 note and it is really not a note but a noise with a certain texture (the crash of the cymbal). The transpose property, that can be adjusted in the Region Inspector, is only enabled if the "resampling" Flex Time algorithms are select (like Slicing, Monophonic, Polyphonic). And that resampling is destroying the texture of the cymbal crash.
In the end, I enabled Flex and chose the "Speed (FX)" algorithm. That allows me to shorten the region (by dragging the right edge Flex marker) which results in the pitch increasing without loosing the texture (without losing all the different harmonics/signals within the sound of the crash cymbal hit).
But if I have multiple audio regions of different lengths, and if I want to change their pitch by the same amount, then how much to I shorten each interval. In the end I wrote a small tool to calculated the relative amount of shortening was required for each interval and provide it in terms of bar, beat, division and tick. I based that on the 12-tone equal tempermant system (see https://en.wikipedia.org/wiki/Equal_temperament).
So, problem solved. But quite awkward. It would be really helpful if the transposition property of the Region Inspector worked with the Flext Time - Speed (FX) algorithm ... then I could dump my external calculation of the length shift required for each region I want to pitch-change this way.
