Pitch Shift

Lowers pitch, while the tempo or speed of play remains the same.

Parameter	Description
Rate	The shifting rate. Lower percentages (from 1 to 99) increase the pitch. Higher percentages (above 100) lower the pitch. The tempo is preserved.

Tip:

See also: Apply a Special Effect or Filter
This effect shifts the frequency spectrum of the input signal. It can be used to disguise a person's voice, or make the voice sound like that of the "chipmunks", through to "Darth Vader". It is also used to create harmony in lead passages, although it is an "unintelligent" harmonizer.
The Pitch Shift method cannot accept negative values at all.