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CODEC – Dolby TrueHD (Atmos is an extension to DTHD)
This is not really true – it’s kind of the opposite.
- Atmos is the method of packaging the audio channels and objects.
- TrueHD is an indication of the audio quality of those signals
This similar to saying “5.1-channel LPCM” or “2-channel MP3” where the first half tells you how many audio channels you have and the second half tells you the COmpression-DECompression (or CODEC) method that’s used to encode those audio channels.