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# supportedPlaybackRates

The supported playback rates for a media item.

```
var supportedPlaybackRates: [NSNumber] { get set }
```

## Discussion

Contains an array of <doc://com.apple.documentation/documentation/Foundation/NSNumber> objects. Each object is of type `float` and designates a supported playback rate. For example, a value of `2.0` would indicate the media item plays at double speed. Negative values are not supported.

---

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