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# AudioChannelBitmap

The supported channel bitmaps to use when defining channel layouts.

```
struct AudioChannelBitmap
```

## Topics

### Left

[`kAudioChannelBit_Left`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_Left)

The left channel.

[`kAudioChannelBit_LeftCenter`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_LeftCenter)

The left center channel.

[`kAudioChannelBit_LeftSurround`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_LeftSurround)

The left surround channel.

[`kAudioChannelBit_LeftSurroundDirect`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_LeftSurroundDirect)

The left surround direct channel.

[`kAudioChannelBit_LeftTopFront`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_LeftTopFront)

The left-top front channel.

[`kAudioChannelBit_LeftTopMiddle`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_LeftTopMiddle)

The left-top middle channel.

[`kAudioChannelBit_LeftTopRear`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_LeftTopRear)

The left-top rear channel.

[`kAudioChannelBit_TopBackLeft`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_TopBackLeft)

The top-back left channel.

[`kAudioChannelBit_VerticalHeightLeft`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_VerticalHeightLeft)

The vertical height left channel.

### Center

[`kAudioChannelBit_Center`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_Center)

The center channel.

[`kAudioChannelBit_CenterSurround`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_CenterSurround)

The center surround channel.

[`kAudioChannelBit_CenterTopFront`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_CenterTopFront)

The top-front center channel.

[`kAudioChannelBit_CenterTopMiddle`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_CenterTopMiddle)

The top-middle center channel.

[`kAudioChannelBit_CenterTopRear`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_CenterTopRear)

The top-right center channel.

[`kAudioChannelBit_TopBackCenter`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_TopBackCenter)

The top-back center channel.

[`kAudioChannelBit_TopCenterSurround`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_TopCenterSurround)

The top center surround channel.

[`kAudioChannelBit_VerticalHeightCenter`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_VerticalHeightCenter)

The vertical height center channel.

### Right

[`kAudioChannelBit_Right`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_Right)

The right channel.

[`kAudioChannelBit_RightCenter`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_RightCenter)

The right center channel.

[`kAudioChannelBit_RightSurround`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_RightSurround)

The rIght surround channel.

[`kAudioChannelBit_RightSurroundDirect`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_RightSurroundDirect)

The right surround direct channel.

[`kAudioChannelBit_RightTopFront`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_RightTopFront)

The top-front front channel.

[`kAudioChannelBit_RightTopMiddle`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_RightTopMiddle)

The top-middle right channel.

[`kAudioChannelBit_RightTopRear`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_RightTopRear)

The top-rear right channel.

[`kAudioChannelBit_TopBackRight`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_TopBackRight)

The top-back right channel.

[`kAudioChannelBit_VerticalHeightRight`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_VerticalHeightRight)

The vertical height right channel.

### Low-Frequency Effects

[`kAudioChannelBit_LFEScreen`](/documentation/CoreAudioTypes/AudioChannelBitmap/bit_LFEScreen)

The Low Frequency Effects (LFE) screen channel.

### Initializers

[`init(rawValue:)`](/documentation/CoreAudioTypes/AudioChannelBitmap/init(rawValue:))

Creates an audio channel bitmap.

## Relationships

### Conforms To

[`OptionSet`](/documentation/Swift/OptionSet)

[`Sendable`](/documentation/Swift/Sendable)

[`SetAlgebra`](/documentation/Swift/SetAlgebra)

[`Equatable`](/documentation/Swift/Equatable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`ExpressibleByArrayLiteral`](/documentation/Swift/ExpressibleByArrayLiteral)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

---

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