---
title: AVAssetDownloadTaskMediaSelectionPrefersMultichannelKey
framework: avfoundation
role: symbol
role_heading: Global Variable
path: avfoundation/avassetdownloadtaskmediaselectionprefersmultichannelkey
---

# AVAssetDownloadTaskMediaSelectionPrefersMultichannelKey

A key that indicates whether the task downloads media selections with support for multichannel playback, when available.

## Declaration

```swift
let AVAssetDownloadTaskMediaSelectionPrefersMultichannelKey: String
```

## Discussion

Discussion By default, download tasks retrieve the variant’s stereo audio and the most capable multichannel rendition available. Provide a Boolean value of false to disable this behavior.

## See Also

### Download option keys

- [AVAssetDownloadTaskMinimumRequiredMediaBitrateKey](avfoundation/avassetdownloadtaskminimumrequiredmediabitratekey.md)
- [AVAssetDownloadTaskMinimumRequiredPresentationSizeKey](avfoundation/avassetdownloadtaskminimumrequiredpresentationsizekey.md)
- [AVAssetDownloadTaskMediaSelectionKey](avfoundation/avassetdownloadtaskmediaselectionkey.md)
- [AVAssetDownloadTaskPrefersHDRKey](avfoundation/avassetdownloadtaskprefershdrkey.md)
- [AVAssetDownloadTaskPrefersLosslessAudioKey](avfoundation/avassetdownloadtaskpreferslosslessaudiokey.md)