---
title: kParametricEQParam_CenterFreq
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kparametriceqparam_centerfreq
---

# kParametricEQParam_CenterFreq

## Declaration

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

## See Also

### Constants

- [kParametricEQParam_Gain](audiotoolbox/kparametriceqparam_gain.md)
- [kParametricEQParam_Q](audiotoolbox/kparametriceqparam_q.md)