P
pan

The panoramic illusion of a sound's placement in space from left to right.

patch

A collection of sound generator or effects parameters; also called a preset.

percussion instruments

Instruments that are generally struck to make sound.

phaser

An effect where the processed audio signal is slightly out of phase or time with the original signal.

pitch

The discrete frequency of a sound where a low-frequency sound is perceived as a low-pitched note and a high-frequency sound is perceived as a high-pitched note.

preset

A stored set of parameters.

punch-in

Recording onto a portion of a previously recorded track. In GarageBand, this refers to region recording.

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