# Source:setPitch

Sets the pitch of the Source.

## Function

### Synopsis

    Source:setPitch( pitch )

### Arguments

`number pitch`
  Calculated with regard to 1 being the base pitch. Each reduction by 50 percent equals a pitch shift of -12 semitones (one octave reduction). Each doubling equals a pitch shift of 12 semitones (one octave increase). Zero is not a legal value.

### Returns

Nothing.

## See Also

- Source

##

Category:

- Functions