10.6

265Logic Pro Effects
• Response slider and field: Determine how quickly the voice reaches the corrected
destination pitch.
Singers use portamenti and other gliding techniques. If you choose a Response value
that’s too high, seamless portamenti turn into semitone-stepped glissandi, but the
intonation is perfect. If the Response value is too low, the pitch of the output signal
won’t change quickly enough. The optimum setting for this parameter depends on
the singing style, tempo, vibrato, and accuracy of the original performance.
• Detune slider and field: Detune the output signal by the set value.
Logic Pro Pitch Correction effect quantization
Use the normal and low buttons to determine the pitch range that you want to scan for
notes that need correction. Normal is the default range and works for most audio material.
Low should be used only for audio material that contains extremely low frequencies (below
100 Hz), which may result in inaccurate pitch detection. These parameters have no effect
on the sound; they are simply optimized tracking options for the chosen target pitch range.
The Scale pop-up menu allows you to choose different pitch quantization grids. The default
setting is the chromatic scale.
The user scale is the scale that is set manually with the onscreen keyboard in the plug-in
window. If you’re unsure of the intervals used in any given scale, choose it from the Scale
pop-up menu and look at the onscreen keyboard. You can alter any note in the chosen
scale by clicking the keyboard keys. Any such adjustments overwrite the existing user
scale settings.
There is only one user scale per project. You can, however, create multiple user scales and
save them as Pitch Correction plug-in settings files.
Tip: The drone scale uses a fifth as a quantization grid, and the single scale defines
a single note. Neither of these scales is meant to result in realistic singing voices, but try
them if aiming for interesting effects.
Choose the root note of the scale from the Root pop-up menu. You can freely transpose
the major and minor scales and scales named after chords.
Note: If you choose user “scale” or “chromatic” from the Scale pop-up menu, the Root
pop-up menu entries are dimmed.
Exclude notes from pitch correction
You can use the Pitch Correction effect onscreen keyboard to exclude notes from the pitch
quantization grid.
When you first open the effect, all notes of the chromatic scale are selected. This means
that every incoming note is altered to fit the next semitone step of the chromatic scale.
If the intonation of the singer is poor, this might lead to notes being incorrectly identified
and corrected to an unwanted pitch. For example, the singer may have intended to sing an
E, but the note is actually closer to a D#. If you do not want the D# in the song, the D# key
can be disabled on the keyboard. Because the original pitch was sung closer to an E than a
D, it is corrected to an E.
Note: The settings made with the Pitch Correction effect onscreen keyboard are valid for
all octave ranges. Individual settings for different octaves are not provided.