# Audio Parametric Equalizer Effect

> Reference for the Audio Parametric Equalizer Effect, which alters the frequency response using linear filters.

The **Audio Param EQ Effect** is used to alter the frequency response of an audio system using linear filters.

## Properties


**The AudioGroup Inspector displays the configurable properties of an Audio Parametric Equalizer Effect.:**
![](/api/media?file=/engine/6000.5/media/images/AudioParamEQEffect.png)

| ***Property:***    | ***Function:***                                                                                                                     |
| ------------------ | ----------------------------------------------------------------------------------------------------------------------------------- |
| **Center freq**    | The frequency in Hertz where the gain is applied (range 20.0 to 22000.0, default = 8000.0 Hz).                                      |
| **Octave Range**   | The number of Octaves over which the gain is applied (Centered on the Center Frequency) (range 0.20 to 5.00, default = 1.0 octave). |
| **Frequency Gain** | The gain applied (range 0.05 to 3.00, default = 1.00 - no gain applied).                                                            |

## Details


**The graph displays the effect of the configured gain over the frequency range of the audio output.:**
![](/api/media?file=/engine/6000.5/media/images/AudioParamEQEffect2.png)