---
title: Parametric EQ Unit Parameters
framework: audiotoolbox
role: collectionGroup
role_heading: API Collection
path: audiotoolbox/1389950-parametric_eq_unit_parameters
---

# Parametric EQ Unit Parameters

Parameters for the Parametric EQ unit.

## Topics

### Constants

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

## See Also

### Equalizers

- [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)
- [Dynamics Processor Unit Parameters](audiotoolbox/1389787-dynamics_processor_unit_paramete.md)
- [Frequency Response Constants](audiotoolbox/1534092-frequency_response_constants.md)
- [AUSpatializationAlgorithm](audiotoolbox/auspatializationalgorithm.md)