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# reset()

Resets transitory rendering state to its initial state.

```
func reset()
```

## Discussion

Hosts should call this at the point of a discontinuity in the input stream being provided to an audio unit—for example, when seeking forward or backward within a track. In response, audio units should clear delay lines, filters, etc. Subclasses should call the superclass implementation.

This version 3 method is bridged to the version 2 [`AudioUnitReset(_:_:_:)`](/documentation/AudioToolbox/AudioUnitReset(_:_:_:)) API, in the global scope.

---

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