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# AVAssetReaderAudioMixOutput

An object that reads audio samples that result from mixing audio from one or more tracks.

```
class AVAssetReaderAudioMixOutput
```

## Overview

Read audio data that you mix from one or more asset tracks by adding an audio mix output to an asset reader. You can read the samples in their stored format or you can convert them to an alternative format.

## Topics

### Creating an audio mix output

[`assetReaderAudioMixOutputWithAudioTracks:audioSettings:`](/documentation/AVFoundation/AVAssetReaderAudioMixOutput/assetReaderAudioMixOutputWithAudioTracks:audioSettings:)

Creates an object that reads mixed audio from the specified audio tracks.

[`init(audioTracks:audioSettings:)`](/documentation/AVFoundation/AVAssetReaderAudioMixOutput/init(audioTracks:audioSettings:))

Creates an object that reads mixed audio from the specified audio tracks.

### Configuring audio settings

[`audioMix`](/documentation/AVFoundation/AVAssetReaderAudioMixOutput/audioMix)

The audio mix to use with this output.

[`audioTimePitchAlgorithm`](/documentation/AVFoundation/AVAssetReaderAudioMixOutput/audioTimePitchAlgorithm)

The processing algorithm to use for scaled audio edits.

### Inspecting an output

[`audioTracks`](/documentation/AVFoundation/AVAssetReaderAudioMixOutput/audioTracks)

The tracks from which the output reads audio.

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

The audio settings that the output uses.


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