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# AVCaptureAudioDataOutput

A capture output that records audio and provides access to audio sample buffers as they are recorded.

```
class AVCaptureAudioDataOutput
```

## Topics

### Creating an audio capture output

[`init()`](/documentation/AVFoundation/AVCaptureAudioDataOutput/init())

Creates an instance of audio data output.

[`new`](/documentation/AVFoundation/AVCaptureAudioDataOutput/new)

Provides a convenience initializer to create an instance of audio data output.

### Configuring audio capture

[`audioSettings`](/documentation/AVFoundation/AVCaptureAudioDataOutput/audioSettings)

The settings used to decode or re-encode audio before it’s output.

[`recommendedAudioSettingsForAssetWriter(writingTo:)`](/documentation/AVFoundation/AVCaptureAudioDataOutput/recommendedAudioSettingsForAssetWriter(writingTo:))

Specifies the recommended settings for use with an `AVAssetWriterInput`.

[`spatialAudioChannelLayoutTag`](/documentation/AVFoundation/AVCaptureAudioDataOutput/spatialAudioChannelLayoutTag)

The audio channel layout tag of the audio sample buffers produced by the audio data output.

### Receiving captured audio data

[`setSampleBufferDelegate(_:queue:)`](/documentation/AVFoundation/AVCaptureAudioDataOutput/setSampleBufferDelegate(_:queue:))

Sets the delegate that will accept captured buffers and the dispatch queue on which the delegate will be called.

[`sampleBufferDelegate`](/documentation/AVFoundation/AVCaptureAudioDataOutput/sampleBufferDelegate)

The capture object’s delegate.

[`sampleBufferCallbackQueue`](/documentation/AVFoundation/AVCaptureAudioDataOutput/sampleBufferCallbackQueue)

The queue on which delegate callbacks are invoked

[`AVCaptureAudioDataOutputSampleBufferDelegate`](/documentation/AVFoundation/AVCaptureAudioDataOutputSampleBufferDelegate)

Methods for receiving audio sample data from an audio capture.


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