---
title: audioTimePitchAlgorithm
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassetreadertrackoutput/audiotimepitchalgorithm
---

# audioTimePitchAlgorithm

The processing algorithm to use for scaled audio edits.

## Declaration

```swift
var audioTimePitchAlgorithm: AVAudioTimePitchAlgorithm { get set }
```

## Discussion

Discussion See Time pitch algorithm settings for possible values. The system throws an exception if you set this property to a value other than one of the defined constants.