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  "identifier" : "/documentation/AppKit/NSSpeechSynthesizer/pauseSpeaking(at:)",
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  "title" : "pauseSpeaking(at:)"
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# pauseSpeaking(at:)

Pauses synthesis in progress at a given boundary.

```
func pauseSpeaking(at boundary: NSSpeechSynthesizer.Boundary)
```

## Parameters

`boundary`

Boundary at which to pause speech. The supported bound types are listed in [`NSSpeechSynthesizer.Boundary`](/documentation/AppKit/NSSpeechSynthesizer/Boundary).

## Discussion

Pass the constant [`NSSpeechSynthesizer.Boundary.immediateBoundary`](/documentation/AppKit/NSSpeechSynthesizer/Boundary/immediateBoundary) to pause immediately, even in the middle of a word. Pass [`NSSpeechSynthesizer.Boundary.wordBoundary`](/documentation/AppKit/NSSpeechSynthesizer/Boundary/wordBoundary) or [`NSSpeechSynthesizer.Boundary.sentenceBoundary`](/documentation/AppKit/NSSpeechSynthesizer/Boundary/sentenceBoundary) to pause speech at the end of the current word or sentence, respectively.

You can determine whether your application has paused a synthesizer’s speech output by obtaining the [`status`](/documentation/AppKit/NSSpeechSynthesizer/SpeechPropertyKey/status) property through the [`object(forProperty:)`](/documentation/AppKit/NSSpeechSynthesizer/object(forProperty:)) method. While a synthesizer is paused, the speech status information indicates that [`outputBusy`](/documentation/AppKit/NSSpeechSynthesizer/SpeechPropertyKey/StatusKey/outputBusy) and [`outputPaused`](/documentation/AppKit/NSSpeechSynthesizer/SpeechPropertyKey/StatusKey/outputPaused) are both <doc://com.apple.documentation/documentation/Swift/true>.

If the end of the string being spoken is reached before the specified pause point, speech output pauses at the end of the string.

---

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