---
title: AudioChannelBitmap
framework: coreaudiotypes
role: symbol
role_heading: Structure
path: coreaudiotypes/audiochannelbitmap
---

# AudioChannelBitmap

The supported channel bitmaps to use when defining channel layouts.

## Declaration

```swift
struct AudioChannelBitmap
```

## Topics

### Left

- [bit_Left](coreaudiotypes/audiochannelbitmap/bit_left.md)
- [bit_LeftCenter](coreaudiotypes/audiochannelbitmap/bit_leftcenter.md)
- [bit_LeftSurround](coreaudiotypes/audiochannelbitmap/bit_leftsurround.md)
- [bit_LeftSurroundDirect](coreaudiotypes/audiochannelbitmap/bit_leftsurrounddirect.md)
- [bit_LeftTopFront](coreaudiotypes/audiochannelbitmap/bit_lefttopfront.md)
- [bit_LeftTopMiddle](coreaudiotypes/audiochannelbitmap/bit_lefttopmiddle.md)
- [bit_LeftTopRear](coreaudiotypes/audiochannelbitmap/bit_lefttoprear.md)
- [bit_TopBackLeft](coreaudiotypes/audiochannelbitmap/bit_topbackleft.md)
- [bit_VerticalHeightLeft](coreaudiotypes/audiochannelbitmap/bit_verticalheightleft.md)

### Center

- [bit_Center](coreaudiotypes/audiochannelbitmap/bit_center.md)
- [bit_CenterSurround](coreaudiotypes/audiochannelbitmap/bit_centersurround.md)
- [bit_CenterTopFront](coreaudiotypes/audiochannelbitmap/bit_centertopfront.md)
- [bit_CenterTopMiddle](coreaudiotypes/audiochannelbitmap/bit_centertopmiddle.md)
- [bit_CenterTopRear](coreaudiotypes/audiochannelbitmap/bit_centertoprear.md)
- [bit_TopBackCenter](coreaudiotypes/audiochannelbitmap/bit_topbackcenter.md)
- [bit_TopCenterSurround](coreaudiotypes/audiochannelbitmap/bit_topcentersurround.md)
- [bit_VerticalHeightCenter](coreaudiotypes/audiochannelbitmap/bit_verticalheightcenter.md)

### Right

- [bit_Right](coreaudiotypes/audiochannelbitmap/bit_right.md)
- [bit_RightCenter](coreaudiotypes/audiochannelbitmap/bit_rightcenter.md)
- [bit_RightSurround](coreaudiotypes/audiochannelbitmap/bit_rightsurround.md)
- [bit_RightSurroundDirect](coreaudiotypes/audiochannelbitmap/bit_rightsurrounddirect.md)
- [bit_RightTopFront](coreaudiotypes/audiochannelbitmap/bit_righttopfront.md)
- [bit_RightTopMiddle](coreaudiotypes/audiochannelbitmap/bit_righttopmiddle.md)
- [bit_RightTopRear](coreaudiotypes/audiochannelbitmap/bit_righttoprear.md)
- [bit_TopBackRight](coreaudiotypes/audiochannelbitmap/bit_topbackright.md)
- [bit_VerticalHeightRight](coreaudiotypes/audiochannelbitmap/bit_verticalheightright.md)

### Low-Frequency Effects

- [bit_LFEScreen](coreaudiotypes/audiochannelbitmap/bit_lfescreen.md)

### Initializers

- [init(rawValue:)](coreaudiotypes/audiochannelbitmap/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [OptionSet](swift/optionset.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [SetAlgebra](swift/setalgebra.md)

## See Also

### Accessing the Data

- [mChannelBitmap](coreaudiotypes/audiochannellayout/mchannelbitmap.md)
- [mChannelDescriptions](coreaudiotypes/audiochannellayout/mchanneldescriptions.md)
- [mChannelLayoutTag](coreaudiotypes/audiochannellayout/mchannellayouttag.md)
- [AudioChannelLayoutTag](coreaudiotypes/audiochannellayouttag.md)
- [Audio Channel Layout Tags](coreaudiotypes/audio-channel-layout-tags.md)
- [mNumberChannelDescriptions](coreaudiotypes/audiochannellayout/mnumberchanneldescriptions.md)
- [AudioChannelLayoutTag_GetNumberOfChannels(_:)](coreaudiotypes/audiochannellayouttag_getnumberofchannels(_:).md)