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# Audio Codec Types

Constants that represent audio codec types.

## Topics

### Constants

[`var kCMAudioCodecType_AAC_AudibleProtected: CMAudioCodecType`](/documentation/CoreMedia/kCMAudioCodecType_AAC_AudibleProtected)

Audible’s protected AAC.

[`var kCMAudioCodecType_AAC_LCProtected: CMAudioCodecType`](/documentation/CoreMedia/kCMAudioCodecType_AAC_LCProtected)

iTMS protected low-complexity AAC.


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