---
title: kLowPassParam_CutoffFrequency
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/klowpassparam_cutofffrequency
---

# kLowPassParam_CutoffFrequency

## Declaration

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

## See Also

### Constants

- [kLowPassParam_Resonance](audiotoolbox/klowpassparam_resonance.md)