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# seek(to:completion:)

Advances the sound event’s playback position to a specific time.

```
func seek(to time: Double, completion handler: (@Sendable (PHASESoundEvent.SeekHandlerReason) -> Void)? = nil)
```

```
func seek(to time: Double) async -> PHASESoundEvent.SeekHandlerReason
```

## Parameters

`time`

The playback position to advance to. The framework scales this value by [`unitsPerSecond`](/documentation/PHASE/PHASEEngine/unitsPerSecond).

## Discussion

> Important:
> You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration:
> 
> ```swift
> func seek(to time: Double) async -> PHASESoundEvent.SeekHandlerReason
> ```
> 
> For information about concurrency and asynchronous code in Swift, see <doc://com.apple.documentation/documentation/Swift/calling-objective-c-apis-asynchronously>.

---

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