Clicking on any note on this musical staff selects a relative pitch transposition value that will be applied to an audio signal. If the C above middle C is illuminated (the staff is in treble clef), it indicates that no pitch transposition has been selected. If a pitch transposition is selected, the note interval corresponding to the selected transposition value is indicated in yellow. Alt-clicking (Windows) or Option-clicking (Mac) on the staff will set the coarse pitch change value to zero.
This control controls the pitch of a signal in cents (hundredths of a semitone) over a 100 cent range. The range of this slider is –49 to +50 cents. Precise pitch change values are indicated in the Fine field. The flat, natural, and sharp signs below this slider indicate deviation from the nearest semitone.
This control indicates the ratio of transposition between the original pitch and the selected transposition value.
This control adjusts the crossfade length in milliseconds to optimize performance of the Pitch plug-in according to the type of audio material you are processing. The Pitch plug-in performs pitch transposition by replicating or subtracting portions of audio material and very quickly crossfading between these alterations in the waveform of the audio material.
Crossfade length affects the amount of smoothing performed on audio material to prevent audio artifacts such as clicks from occurring as the audio is looped to generate the pitch shift.
In general, small, narrow-range pitch shifts require longer crossfades and large shifts require smaller ones. The disadvantage of a long crossfade time is that it will smooth the signal, including any transients. While this is sometimes desirable for audio material such as vocals, it is not appropriate for material with sharp transients such as drums or percussion.
The default setting for this control is Auto. At this setting, crossfade times are set automatically, according to the settings of the Coarse and Fine pitch controls. The Auto setting is appropriate for most applications. However, you can manually adjust and optimize crossfade times using the Crossfade slider if necessary. For audio material with sharper attack transients, use shorter crossfade times. For audio material with softer attack transients, use longer crossfade times.
This controls sets the minimum fundamental pitch that the Pitch plug-in will recognize when performing pitch transposition. Use this to optimize the Pitch plug-in’s performance by adjusting this control based on the lowest fundamental pitch of the audio material that you want to process.
On audio material with a low fundamental pitch frequency content (such as an electric bass) setting this control to a lower frequency (such as 30 Hz) will improve the Pitch plug-in’s performance. The most important thing to remember when using this control is that the fundamental frequency of audio material you want to process must be above the frequency you set here.
The range of this slider is from 15 Hz to 1000 Hz. The default setting is 60 Hz. Adjustment is tied to the current setting of the Maximum Pitch control so that the minimum range is never less than one octave, and the maximum range never more than five octaves.
This control adjusts the maximum fundamental pitch that the Pitch plug-in will recognize when performing pitch transposition. To optimize the Pitch plug-in’s performance, adjust this setting (and the Minimum Pitch setting) based on the highest fundamental pitch of the audio material that you want to process. The range of this slider is from 30 Hz to 4000 Hz. The default setting is 240 Hz.