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# NumAudioFileMarkersToNumBytes(_:)

Returns the number of bytes corresponding to a specified number of audio file markers.

```
func NumAudioFileMarkersToNumBytes(_ inNumMarkers: Int) -> Int
```

## Parameters

`inNumMarkers`

The number of audio file markers for which you wish to know the equivalent number of bytes.

## Return Value

The number of bytes required to contain the specified number of audio file markers.

## Discussion

Use this convenience function when you call the [`AudioFileSetProperty(_:_:_:_:)`](/documentation/AudioToolbox/AudioFileSetProperty(_:_:_:_:)) function with the [`kAudioFilePropertyMarkerList`](/documentation/AudioToolbox/kAudioFilePropertyMarkerList) property to calculate the size of buffer needed to hold a specific number of audio file markers.

## See Also

[`AudioFileSetProperty`](/documentation/AudioToolbox/AudioFileSetProperty(_:_:_:_:))

Sets the value of an audio file property


---

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