# hfReference

> Reference high frequency in hertz (Hz). Ranges from 1000.0 to 20000.0. Default is 5000.0.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.AudioModule

```csharp
public float hfReference { get; set; }
```