---
title: rate
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nsspeechsynthesizer/rate
---

# rate

The synthesizer’s speaking rate (words per minute).

## Declaration

```swift
var rate: Float { get set }
```

## Discussion

Discussion The range of supported rates is not predefined by the Speech Synthesis framework; but the synthesizer may only respond to a limited range of speech rates. Average human speech occurs at a rate of 180 to 220 words per minute.

## See Also

### Configuring Speech Synthesizers

- [usesFeedbackWindow](appkit/nsspeechsynthesizer/usesfeedbackwindow.md)
- [voice()](appkit/nsspeechsynthesizer/voice().md)
- [setVoice(_:)](appkit/nsspeechsynthesizer/setvoice(_:).md)
- [volume](appkit/nsspeechsynthesizer/volume.md)