---
title: kReverbParam_FilterFrequency
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kreverbparam_filterfrequency
---

# kReverbParam_FilterFrequency

## Declaration

```swift
var kReverbParam_FilterFrequency: AudioUnitParameterID { get }
```

## See Also

### Constants

- [kReverbParam_FilterBandwidth](audiotoolbox/kreverbparam_filterbandwidth.md)
- [kReverbParam_FilterEnable](audiotoolbox/kreverbparam_filterenable.md)
- [kReverbParam_FilterGain](audiotoolbox/kreverbparam_filtergain.md)
- [kReverbParam_FilterType](audiotoolbox/kreverbparam_filtertype.md)