# Audio Low Pass Effect

> Reference for the Audio Low Pass Effect, which passes low frequencies and removes high frequencies.

The **Audio Low Pass Effect** passes low frequencies of an [AudioMixer](/engine/6000.7/manual/audio/reference/class-audio-mixer.md) group while removing frequencies higher than the **Cutoff Frequency**.

## Properties


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

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

## Details

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