Audio Channel Layout Tags

The identifiers for audio channel layouts.

Overview

These identifiers specify the channels included in a layout and specify the particular ordering of those channels. Used in the mChannelLayoutTag field of an AudioChannelLayout structure.

Topics

MPEG Defined Layouts

var kAudioChannelLayoutTag_MPEG_3_0_A: AudioChannelLayoutTag

An MPEG 3-channel, configuration A, audio layout.

var kAudioChannelLayoutTag_MPEG_3_0_B: AudioChannelLayoutTag

An MPEG 3-channel, configuration B, audio layout.

var kAudioChannelLayoutTag_MPEG_4_0_A: AudioChannelLayoutTag

An MPEG 4-channel, configuration A, audio layout.

var kAudioChannelLayoutTag_MPEG_4_0_B: AudioChannelLayoutTag

An MPEG 4-channel, configuration B, audio layout

var kAudioChannelLayoutTag_MPEG_5_0_A: AudioChannelLayoutTag

An MPEG 5-channel, configuration A, audio layout.

var kAudioChannelLayoutTag_MPEG_5_0_B: AudioChannelLayoutTag

An MPEG 5-channel, configuration B, audio layout.

var kAudioChannelLayoutTag_MPEG_5_0_C: AudioChannelLayoutTag

An MPEG 5-channel, configuration C, audio layout.

var kAudioChannelLayoutTag_MPEG_5_0_D: AudioChannelLayoutTag

An MPEG 5-channel, configuration D, audio layout.

var kAudioChannelLayoutTag_MPEG_5_1_A: AudioChannelLayoutTag

An MPEG 5.1-channel, configuration A, audio layout.

var kAudioChannelLayoutTag_MPEG_5_1_B: AudioChannelLayoutTag

An MPEG 5.1-channel, configuration B, audio layout.

var kAudioChannelLayoutTag_MPEG_5_1_C: AudioChannelLayoutTag

An MPEG 5.1-channel, configuration C, audio layout.

var kAudioChannelLayoutTag_MPEG_5_1_D: AudioChannelLayoutTag

An MPEG 5.1-channel, configuration D, audio layout.

var kAudioChannelLayoutTag_MPEG_6_1_A: AudioChannelLayoutTag

An MPEG 6.1-channel, configuration A, audio layout.

var kAudioChannelLayoutTag_MPEG_7_1_A: AudioChannelLayoutTag

An MPEG 7.1-channel, configuration A, audio layout.

var kAudioChannelLayoutTag_MPEG_7_1_B: AudioChannelLayoutTag

An MPEG 7.1-channel, configuration B, audio layout.

var kAudioChannelLayoutTag_MPEG_7_1_C: AudioChannelLayoutTag

An MPEG 7.1-channel, configuration C, audio layout.

DVD Defined Layouts

Symmetrical Layouts

var kAudioChannelLayoutTag_AudioUnit_4: AudioChannelLayoutTag

A quadraphonic symmetrical layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_5: AudioChannelLayoutTag

A pentagonal symmetrical layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_6: AudioChannelLayoutTag

A hexagonal symmetrical layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_8: AudioChannelLayoutTag

An octagonal symmetrical layout, recommended for use by audio units.

Surround Based Layouts

var kAudioChannelLayoutTag_AudioUnit_5_0: AudioChannelLayoutTag

A 5-channel surround-based layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_6_0: AudioChannelLayoutTag

A 6-channel surround-based layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_7_0: AudioChannelLayoutTag

A 7-channel surround-based layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_7_0_Front: AudioChannelLayoutTag

An alternate 7-channel surround-based layout, for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_5_1: AudioChannelLayoutTag

A 5.1-channel surround-based layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_6_1: AudioChannelLayoutTag

A 6.1-channel surround-based layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_7_1: AudioChannelLayoutTag

A 7.1-channel surround-based layout, recommended for use by audio units.

var kAudioChannelLayoutTag_AudioUnit_7_1_Front: AudioChannelLayoutTag

A 7.1-channel surround-based layout, recommended for use by audio units.

var kAudioChannelLayoutTag_TMH_10_2_std: AudioChannelLayoutTag

A TMH 10.2 multiple-channel surround-based layout .

var kAudioChannelLayoutTag_TMH_10_2_full: AudioChannelLayoutTag

An extended TMH 10.2 multiple-channel surround-based layout, recommended for use by audio units.

AAC Defined Layouts

var kAudioChannelLayoutTag_AAC_4_0: AudioChannelLayoutTag

An AAC 4-channel surround-based layout.

var kAudioChannelLayoutTag_AAC_5_0: AudioChannelLayoutTag

An AAC 5-channel surround-based layout.

var kAudioChannelLayoutTag_AAC_5_1: AudioChannelLayoutTag

An AAC 5.1-channel surround-based layout.

var kAudioChannelLayoutTag_AAC_6_0: AudioChannelLayoutTag

An AAC 6-channel surround-based layout.

var kAudioChannelLayoutTag_AAC_6_1: AudioChannelLayoutTag

An AAC 6.1-channel surround-based layout.

var kAudioChannelLayoutTag_AAC_7_0: AudioChannelLayoutTag

An AAC 7-channel surround-based layout.

var kAudioChannelLayoutTag_AAC_7_1: AudioChannelLayoutTag

An AAC 7.1-channel surround-based layout.

var kAudioChannelLayoutTag_AAC_7_1_B: AudioChannelLayoutTag

An AAC 7.1-channel, configuration B, surround-based layout.

var kAudioChannelLayoutTag_AAC_7_1_C: AudioChannelLayoutTag

An AAC 7.1-channel, configuration C, surround-based layout.

EAC3 Defined Layouts

var kAudioChannelLayoutTag_EAC_6_0_A: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC_7_0_A: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_6_1_A: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_6_1_B: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_6_1_C: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_7_1_A: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_7_1_B: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_7_1_C: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_7_1_D: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_7_1_E: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_7_1_F: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_7_1_G: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

var kAudioChannelLayoutTag_EAC3_7_1_H: AudioChannelLayoutTag

A Blu-ray Disc audio layout for Enhanced AC-3, also known as Dolby Digital Plus.

DTS Defined Layouts

var kAudioChannelLayoutTag_DTS_3_1: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_4_1: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_6_0_A: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_6_0_B: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_6_0_C: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_6_1_A: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_6_1_B: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_6_1_C: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_6_1_D: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_7_0: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_7_1: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_8_0_A: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_8_0_B: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_8_1_A: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

var kAudioChannelLayoutTag_DTS_8_1_B: AudioChannelLayoutTag

A Blu-ray Disc audio layout, defined by DTS (Digital Theater Systems Ltd.).

HOA Defined Layouts

var kAudioChannelLayoutTag_HOA_ACN_N3D: AudioChannelLayoutTag

A Higher-order Ambisonics, full 3D normalization audio layout.

var kAudioChannelLayoutTag_HOA_ACN_SN3D: AudioChannelLayoutTag

A Higher-order Ambisonics, Schmidt semi-normalization audio layout.

General Information Tags

var kAudioChannelLayoutTag_DiscreteInOrder: AudioChannelLayoutTag

A tag used to map input channels to output channels without changing the channel order.

Reserved Tag Range

The tags in this section define a range of values reserved for future Apple use. Do not create tags in this range.

var kAudioChannelLayoutTag_BeginReserved: AudioChannelLayoutTag

The beginning value for a reserved range of layout tags.

var kAudioChannelLayoutTag_EndReserved: AudioChannelLayoutTag

The ending value for a reserved range of layout tags.