# Audio High Pass Filter

> Reference for the Audio High Pass filter, which passes high frequencies and removes low frequencies.

The **Audio High Pass Filter** passes high frequencies of an AudioSource and cuts off signals with frequencies lower than the **Cutoff Frequency**.

## Properties


**The AudioGroup Inspector displays the configurable properties of an Audio High Pass Filter.:**
![](/api/media?file=/engine/6000.3/media/images/AudioHighPassFilter.png)

| ***Property:***          | ***Function:***                                                               |
| ------------------------ | ----------------------------------------------------------------------------- |
| **Cutoff Frequency**     | Highpass cutoff frequency in Hertz (range 10.0 to 22000.0, default = 5000.0). |
| **Highpass Resonance Q** | Highpass resonance quality value (range 1.0 to 10.0, default = 1.0).          |

## Details

The **Highpass resonance Q** (short for Highpass Resonance Quality Factor) determines how much the filter's self-resonance is dampened. Higher highpass resonance quality indicates a lower rate of energy loss, that is the oscillations die out more slowly.