---
title: Dynamics Processor Unit Parameters
framework: audiotoolbox
role: collectionGroup
role_heading: API Collection
path: audiotoolbox/1389787-dynamics_processor_unit_paramete
---

# Dynamics Processor Unit Parameters

Parameters for the Dynamics Processor unit.

## Topics

### Constants

- [kDynamicsProcessorParam_AttackTime](audiotoolbox/kdynamicsprocessorparam_attacktime.md)
- [kDynamicsProcessorParam_CompressionAmount](audiotoolbox/kdynamicsprocessorparam_compressionamount.md)
- [kDynamicsProcessorParam_ExpansionRatio](audiotoolbox/kdynamicsprocessorparam_expansionratio.md)
- [kDynamicsProcessorParam_ExpansionThreshold](audiotoolbox/kdynamicsprocessorparam_expansionthreshold.md)
- [kDynamicsProcessorParam_HeadRoom](audiotoolbox/kdynamicsprocessorparam_headroom.md)
- [kDynamicsProcessorParam_InputAmplitude](audiotoolbox/kdynamicsprocessorparam_inputamplitude.md)
- [kDynamicsProcessorParam_MasterGain](audiotoolbox/kdynamicsprocessorparam_mastergain.md)
- [kDynamicsProcessorParam_OutputAmplitude](audiotoolbox/kdynamicsprocessorparam_outputamplitude.md)
- [kDynamicsProcessorParam_ReleaseTime](audiotoolbox/kdynamicsprocessorparam_releasetime.md)
- [kDynamicsProcessorParam_Threshold](audiotoolbox/kdynamicsprocessorparam_threshold.md)
- [kDynamicsProcessorParam_OverallGain](audiotoolbox/kdynamicsprocessorparam_overallgain.md)

## See Also

### Equalizers

- [Parametric EQ Unit Parameters](audiotoolbox/1389950-parametric_eq_unit_parameters.md)
- [Audio Unit Graphic EQ Parameter ID](audiotoolbox/1389932-audio-unit-graphic-eq-parameter.md)
- [Peak Limiter Unit Parameters](audiotoolbox/1389597-peak_limiter_unit_parameters.md)
- [Frequency Response Constants](audiotoolbox/1534092-frequency_response_constants.md)
- [AUSpatializationAlgorithm](audiotoolbox/auspatializationalgorithm.md)