10.6

268Logic Pro Effects
Use Logic Pro Pitch Shifter
Pitch Shifter is used most effectively when you take a structured approach.
Use pitch shifting
1. In Logic Pro, you can set the amount of transposition, or pitch shift, by dragging the
Semi Tones slider.
2. To set the amount of detuning, drag the Cents slider.
3. Choose the algorithm that best matches the material you are working with from the
Timing pop-up menu.
If you are working with material that does not fit any of these categories, experiment
with each of the algorithms (starting with Speech), then compare the results and use
the one that best suits your material.
Tip: While auditioning and comparing different settings, temporarily set the Mix
parameter to 100% because this makes Pitch Shifter artifacts easier to hear.
Vocal Transformer
Logic Pro Vocal Transformer overview
Vocal Transformer can be used to transpose the pitch of a vocal line, to augment or
diminish the range of the melody, or even to reduce it to a single note that mirrors the
pitches of a melody. No matter how you change the pitches of the melody, the constituent
parts of the signal (formants) remain the same.
You can shift the formants independently, which means that you can turn a vocal track into
a Mickey Mouse voice, while maintaining the original pitch. Formants are characteristic
emphases of certain frequency ranges. They are static and do not change with pitch.
Formants are responsible for the specific timbre of a given human voice.
Vocal Transformer is well suited to extreme vocal effects. The best results are achieved
with monophonic signals, including monophonic instrument tracks. It is not designed
for polyphonic voices—such as a choir on a single track—or other chordal tracks.
See Logic Pro Vocal Transformer parameters and Use Logic Pro Vocal Transformer.