Pitch Shift

Use this command to change a pitch of the original signals.
You can change the pitch of sound without changing its original length, or you can change the sound length in inverse proportion to the pitch.

Frequency

Click any key on the keyboard in the Pitch Shift window to set how much the pitch should be raised or lowered relative to the default sound (the C note on the center of the keyboard), or type the value in the Frequency box.
When you specify the pitch shift numerically, the resulting pitch will shift to the note on the keyboard closest to the value you specified.

Constant Length

On Pitch will shift without changing the sound length.
Off The sound length will change in inverse proportion to the pitch.
Higher pitch will make the sound shorter, and lower pitch will make the sound longer.
* Constant Length works only when Frequency is set to the value ranging from 0.5 to 2.0 (times).