---
title: kMatrixMixerParam_PrePeakHoldLevelLinear
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kmatrixmixerparam_prepeakholdlevellinear
---

# kMatrixMixerParam_PrePeakHoldLevelLinear

## Declaration

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

## See Also

### Constants

- [kMatrixMixerParam_Enable](audiotoolbox/kmatrixmixerparam_enable.md)
- [kMatrixMixerParam_PostAveragePower](audiotoolbox/kmatrixmixerparam_postaveragepower.md)
- [kMatrixMixerParam_PostAveragePowerLinear](audiotoolbox/kmatrixmixerparam_postaveragepowerlinear.md)
- [kMatrixMixerParam_PostPeakHoldLevel](audiotoolbox/kmatrixmixerparam_postpeakholdlevel.md)
- [kMatrixMixerParam_PostPeakHoldLevelLinear](audiotoolbox/kmatrixmixerparam_postpeakholdlevellinear.md)
- [kMatrixMixerParam_PreAveragePower](audiotoolbox/kmatrixmixerparam_preaveragepower.md)
- [kMatrixMixerParam_PreAveragePowerLinear](audiotoolbox/kmatrixmixerparam_preaveragepowerlinear.md)
- [kMatrixMixerParam_PrePeakHoldLevel](audiotoolbox/kmatrixmixerparam_prepeakholdlevel.md)
- [kMatrixMixerParam_Volume](audiotoolbox/kmatrixmixerparam_volume.md)