JAX P3 - Pitch Shifter III

Name: JAX P3 - Pitch Shifter III
Rating: 3.8 (4 reviews)
Author: Jens Guell

Audio Unit (AUv3)

Free · Designed for iPad

4 Ratings
Ages

4+
Years
Category

Music
Developer

Jens Guell
Language

EN
English
Size

34.8
MB

The (frequency domain) pitch shifter effect (Audio Unit) from our JAX ESSENTIAL SERIES allows to re-pitch audio in realtime, based on semitones and cents of a semitone. Our frequency domain approach for pitch shifting will use the “phase vocoder” method, that effectively is an FFT/inverse FFT. The term “vocoder” is somewhat misleading here, because it has nothing to do with a real “vocoder”. FFT will introduce latency too, but the buffers can be kept relatively small and the input can be shifted by exactly this fixed amount of latency for the final mix internally. Complex mathematical formulas will be used to extract the frequency components from the signal and their corresponding magnitudes. After the frequency is known, it can be modified in controlled manner, thus making pitch and frequency shifting possible in realtime. If the frequency was modified across all magnitudes equally, the inverse FFT is applied, leaving the audio with a changed pitch. Like the time domain approach of JAX ESSENTIAL SERIES P2, this will produce “chipmonkeyfication” effects, because all transients and formants will be shifted this way too, proportional with the fundamental frequency. The frequency domain approach has some side effects too. The audio will be smeared slightly but equally across the entire range. Grainy results are less audible than with the time domain approach. It is not well situated for using with strong transient audio material. Excellent results can be achieved with ambient audio material.

Ratings & Reviews

3.8

out of 5

4 Ratings

The Pitch Shifter I’ve been looking for!!
01/18/2021

Aladdin Wannabe
This app is so easy to use to change the key of an audio file or detune it. Seems to be the only app on ios that can do that smoothly. The other auv3’s for pitch shifting seems to be aimed towards the ones who want to just create a chorus like effect or auto tune singing.I love this app and it took me so long to find it, but please add the feature of typing in the exact number value of the detune.
The Pitch Shifter I’ve been looking for!!
01/18/2021

Aladdin Wannabe

This app is so easy to use to change the key of an audio file or detune it. Seems to be the only app on ios that can do that smoothly. The other auv3’s for pitch shifting seems to be aimed towards the ones who want to just create a chorus like effect or auto tune singing.I love this app and it took me so long to find it, but please add the feature of typing in the exact number value of the detune.
Great but could use optimization
10/20/2024

Lan18
Too processor intensive - should be able to get that way down on apple silicon devices.
Great but could use optimization
10/20/2024

Lan18

Too processor intensive - should be able to get that way down on apple silicon devices.

The product (AudioUnit AUv3) was updated for support of latest Apple technologies and frameworks (architecture: arm64). Minimal iOS target is still 12.0. It also should work on the Vision Pro (compatibility mode).