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# volume

The synthesizer’s speaking volume.

```
var volume: Float { get set }
```

## Discussion

Volumes are expressed in floating-point units ranging from 0.0 through 1.0. A value of 0.0 corresponds to silence, and a value of 1.0 corresponds to the maximum possible volume. Volume units lie on a scale that is linear with amplitude or voltage. A doubling of perceived loudness corresponds to a doubling of the volume. Setting a value outside this range is undefined.

---

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