---
title: CMAudioFormatDescriptionMask
framework: coremedia
role: symbol
role_heading: Type Alias
path: coremedia/cmaudioformatdescriptionmask
---

# CMAudioFormatDescriptionMask

A type for mask bits that represent parts of an audio format description.

## Declaration

```swift
typealias CMAudioFormatDescriptionMask = UInt32
```

## See Also

### Data Types

- [CMVideoDimensions](coremedia/cmvideodimensions.md)
- [CMMediaType](coremedia/cmmediatype.md)
- [CMAudioCodecType](coremedia/cmaudiocodectype.md)
- [CMVideoCodecType](coremedia/cmvideocodectype.md)
- [CMTextDisplayFlags](coremedia/cmtextdisplayflags.md)
- [CMTextJustificationValue](coremedia/cmtextjustificationvalue.md)
- [Media Type Constants](coremedia/media-type-constants.md)
- [Muxed Stream Types](coremedia/muxed-stream-types.md)
- [Audio Codec Types](coremedia/audio-codec-types.md)