# Audio Pitch Shifter Effect

> Reference for the Audio Pitch Shifter Effect, which shifts an audio signal up or down in pitch.

The **Audio Pitch Shifter Effect** is used to shift a signal up or down in pitch.

## Properties


**The AudioGroup Inspector displays the configurable properties of an Audio Pitch Shifter Effect.:**
![](/api/media?file=/engine/6000.7/media/images/AudioPitchShifterEffect.png)

| ***Property:***  | ***Function:***                                                                                                                                                                               |
| ---------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Pitch**        | The pitch multiplier (range 0.5 x to 2.0 x, default 1.0 x).                                                                                                                                   |
| **FFT Size**     | The size of the FFT window used to analyze the audio signal during pitch shifting (range 256.0 to 4096.0, default = 1024.0). Higher values reduce smearing but require more processing power. |
| **Overlap**      | How much each successive FFT window overlaps (range 1 to 32, default = 4). Higher values mean smoother transitions, but increasing this property by a value of 2 doubles the CPU usage.       |
| **Max channels** | The maximum number of channels (range 0 to 16, default = 0 channels). This parameter is a `float`.                                                                                            |