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# telephonySpeechMetrics

A sensor that provides data describing speech during phone calls.

```
static let telephonySpeechMetrics: SRSensor
```

## Discussion

The [`sample`](/documentation/SensorKit/SRFetchResult/sample) type for this sensor is [`SRSpeechMetrics`](/documentation/SensorKit/SRSpeechMetrics).

The metrics provide details about the user’s voice, such as tenor, pitch, cadence, and speech timing, which includes words per minute and the average duration between words.

This sensor doesn’t provide raw audio data.

You need to provide a reason to analyze speech by adding the <doc://com.apple.documentation/documentation/BundleResources/Information-Property-List/NSSensorKitUsageDetail/SRSensorUsageSpeechMetrics> dictionary to the <doc://com.apple.documentation/documentation/BundleResources/Information-Property-List/NSSensorKitUsageDetail> key in the information property list.

---

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