---
title: kBandpassParam_CenterFrequency
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kbandpassparam_centerfrequency
---

# kBandpassParam_CenterFrequency

## Declaration

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

## See Also

### Constants

- [kBandpassParam_Bandwidth](audiotoolbox/kbandpassparam_bandwidth.md)