Audio Channel Label Constants

Channel labels for use in the mChannelLabel field of an AudioChannelDescription structure.

Topics

Constants

var kAudioChannelLabel_Unknown: AudioChannelLabel

Unknown role or unspecified other use for channel.

var kAudioChannelLabel_Unused: AudioChannelLabel

The channel is present, but has no intended role or destination.

var kAudioChannelLabel_UseCoordinates: AudioChannelLabel

The channel is described solely by the mCoordinates field of the AudioChannelDescription structure.

var kAudioChannelLabel_LFEScreen: AudioChannelLabel

Low Frequency Effects Screen; a subwoofer located in front of the theater.

var kAudioChannelLabel_LeftSurround: AudioChannelLabel

Left surround channel; or for WAVE (.wav) files, back left.

var kAudioChannelLabel_RightSurround: AudioChannelLabel

Right surround channel; or for WAVE (.wav) files, back right.

var kAudioChannelLabel_CenterSurround: AudioChannelLabel

Center surround channel; or for WAVE (.wav) files, back center or rear surround.

var kAudioChannelLabel_LeftSurroundDirect: AudioChannelLabel

Left surround direct channel; or for WAVE (.wav) files, side left.

var kAudioChannelLabel_RightSurroundDirect: AudioChannelLabel

Right surround direct channel; or for WAVE (.wav) files, side right.

var kAudioChannelLabel_VerticalHeightLeft: AudioChannelLabel

Vertical height left channel; or for WAVE (.wav) files, top front left.

var kAudioChannelLabel_VerticalHeightCenter: AudioChannelLabel

Vertical height center channel; or for WAVE (.wav) files, top front center.

var kAudioChannelLabel_VerticalHeightRight: AudioChannelLabel

Vertical height right channel; or for WAVE (.wav) files, top front right.

var kAudioChannelLabel_LeftTotal: AudioChannelLabel

The left channel of matrix encoded 4 channel audio.

var kAudioChannelLabel_RightTotal: AudioChannelLabel

The right channel of matrix encoded 4 channel audio.

var kAudioChannelLabel_HearingImpaired: AudioChannelLabel

Channel carrying audio for the hearing impaired.

var kAudioChannelLabel_Haptic: AudioChannelLabel

A channel for haptic (touch) data.

var kAudioChannelLabel_MS_Mid: AudioChannelLabel

Mid channel of a Mid/Side recording.

var kAudioChannelLabel_MS_Side: AudioChannelLabel

Side channel of a Mid/Side recording.