---
title: activation
framework: sensorkit
role: symbol
role_heading: Instance Property
path: sensorkit/srspeechexpression/activation
---

# activation

The level of energy or activation of the speaker.

## Declaration

```swift
var activation: Double { get }
```

## Discussion

Discussion This property is a range from -1 to 1, where negative values indicate negative sentiment, and positive values indicate positive sentiment.

## See Also

### Getting speech analytics

- [confidence](sensorkit/srspeechexpression/confidence.md)
- [mood](sensorkit/srspeechexpression/mood.md)
- [valence](sensorkit/srspeechexpression/valence.md)
- [dominance](sensorkit/srspeechexpression/dominance.md)