---
title: AVAudio3DMixingRenderingAlgorithm.HRTF
framework: avfaudio
role: symbol
role_heading: Case
path: avfaudio/avaudio3dmixingrenderingalgorithm/hrtf
---

# AVAudio3DMixingRenderingAlgorithm.HRTF

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

## Declaration

```swift
case HRTF
```

## Discussion

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

## See Also

### Rendering Algorithms

- [AVAudio3DMixingRenderingAlgorithm.auto](avfaudio/avaudio3dmixingrenderingalgorithm/auto.md)
- [AVAudio3DMixingRenderingAlgorithm.equalPowerPanning](avfaudio/avaudio3dmixingrenderingalgorithm/equalpowerpanning.md)
- [AVAudio3DMixingRenderingAlgorithm.HRTFHQ](avfaudio/avaudio3dmixingrenderingalgorithm/hrtfhq.md)
- [AVAudio3DMixingRenderingAlgorithm.soundField](avfaudio/avaudio3dmixingrenderingalgorithm/soundfield.md)
- [AVAudio3DMixingRenderingAlgorithm.sphericalHead](avfaudio/avaudio3dmixingrenderingalgorithm/sphericalhead.md)
- [AVAudio3DMixingRenderingAlgorithm.stereoPassThrough](avfaudio/avaudio3dmixingrenderingalgorithm/stereopassthrough.md)