<!--
{
  "documentType" : "article",
  "framework" : "AudioToolbox",
  "identifier" : "/documentation/AudioToolbox/1389967-auhighshelffilter_parameters",
  "metadataVersion" : "0.1.0",
  "role" : "collectionGroup",
  "title" : "AUHighShelfFilter Parameters"
}
-->

# AUHighShelfFilter Parameters

Parameters for the High Shelf Filter unit.

## Topics

### Constants

[`var kHighShelfParam_CutOffFrequency: AudioUnitParameterID`](/documentation/AudioToolbox/kHighShelfParam_CutOffFrequency)

[`var kHighShelfParam_Gain: AudioUnitParameterID`](/documentation/AudioToolbox/kHighShelfParam_Gain)



---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)