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# AudioUnitSetParameter(_:_:_:_:_:_:)

Sets the value of an audio unit parameter.

```
func AudioUnitSetParameter(_ inUnit: AudioUnit, _ inID: AudioUnitParameterID, _ inScope: AudioUnitScope, _ inElement: AudioUnitElement, _ inValue: AudioUnitParameterValue, _ inBufferOffsetInFrames: UInt32) -> OSStatus
```

## Parameters

`inUnit`

The audio unit that you want to set a parameter value for.

`inID`

The audio unit parameter identifier.

`inScope`

The audio unit scope for the parameter.

`inElement`

The audio unit element for the parameter.

`inValue`

The value that you want to apply to the parameter.

`inBufferOffsetInFrames`

Set this to 0. To schedule the setting of a parameter value, use the [`AudioUnitScheduleParameters(_:_:_:)`](/documentation/AudioToolbox/AudioUnitScheduleParameters(_:_:_:)) function.

## Return Value

A result code.

## Discussion

---

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