---
title: isAnyApplicationSpeaking
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsspeechsynthesizer/isanyapplicationspeaking
---

# isAnyApplicationSpeaking

A Boolean value indicating whether any application is currently speaking through the sound output device.

## Declaration

```swift
class var isAnyApplicationSpeaking: Bool { get }
```

## Discussion

Discussion This property is true when another application is producing speech through the sound output device. You usually invoke this method to prevent your application from speaking over speech being generated by another application or system component.