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# isInputMeteringEnabled

A Boolean value that indicates whether the microphone’s sound level is being monitored.

```
var isInputMeteringEnabled: Bool { get set }
```

## Discussion

If <doc://com.apple.documentation/documentation/Swift/true>, your application can read the [`inputMeterLevel`](/documentation/GameKit/GKVoiceChatService/inputMeterLevel) property to monitor the sound level of the microphone. If <doc://com.apple.documentation/documentation/Swift/false>, the value of the [`inputMeterLevel`](/documentation/GameKit/GKVoiceChatService/inputMeterLevel) property is undefined. Default is <doc://com.apple.documentation/documentation/Swift/false>. When your application doesn’t need to monitor the microphone, it should set this property to <doc://com.apple.documentation/documentation/Swift/false> to improve performance.

---

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