---
title: varispeed
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avaudiotimepitchalgorithm/varispeed
---

# varispeed

A high-quality time pitch algorithm that doesn’t perform pitch correction.

## Declaration

```swift
static let varispeed: AVAudioTimePitchAlgorithm
```

## Discussion

Discussion The pitch varies with the rate, and supports variable rates from 1/32 to 32.

## See Also

### Constants

- [timeDomain](avfoundation/avaudiotimepitchalgorithm/timedomain.md)
- [spectral](avfoundation/avaudiotimepitchalgorithm/spectral.md)
- [lowQualityZeroLatency](avfoundation/avaudiotimepitchalgorithm/lowqualityzerolatency.md)