<!--
{
  "availability" : [
    "iOS: 8.0.0 -",
    "iPadOS: 8.0.0 -",
    "macCatalyst: 13.1.0 -",
    "macOS: 10.10.0 -",
    "tvOS: -",
    "visionOS: 1.0.0 -",
    "watchOS: 2.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AVFAudio",
  "identifier" : "/documentation/AVFAudio/AVAudio3DMixingRenderingAlgorithm/HRTF",
  "metadataVersion" : "0.1.0",
  "role" : "Case",
  "symbol" : {
    "kind" : "Case",
    "modules" : [
      "AVFAudio"
    ],
    "preciseIdentifier" : "c:@E@AVAudio3DMixingRenderingAlgorithm@AVAudio3DMixingRenderingAlgorithmHRTF"
  },
  "title" : "AVAudio3DMixingRenderingAlgorithm.HRTF"
}
-->

# AVAudio3DMixingRenderingAlgorithm.HRTF

A high-quality algorithm that uses filtering to emulate 3D space in headphones.

```
case HRTF
```

## Discussion

The head-related transfer function is a CPU-intensive algorithm.

---

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)