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Why can't Apple TV 4K be configured to pass either DD 5.1 or Dolby Atmos, whichever is best? Can only configure DD 5.1 or LPCM/Dolby Atmos. Thanks.
Apple TV 4K, tvOS 15
When Audio Format set to “Auto” (PCM Multichannel and optionally Dolby Atmos in Dolby MAT), then Dolby Digital 5.1/AAC 5.1 source material will be output as PCM 5.1, which is uncompressed, but otherwise the same quality as the source. It is the discrete channels that is important, not the Dolby brand name, nor a symbol lighting up on your equipment.
Adjust other audio settings - Apple TV user guide - Apple Support
When Audio Format set to “Auto” (PCM Multichannel and optionally Dolby Atmos in Dolby MAT), then Dolby Digital 5.1/AAC 5.1 source material will be output as PCM 5.1, which is uncompressed, but otherwise the same quality as the source. It is the discrete channels that is important, not the Dolby brand name, nor a symbol lighting up on your equipment.
Adjust other audio settings - Apple TV user guide - Apple Support
OK, thanks! I wasn't sure if the PCM 5.1 was the same audio fidelity and discrete channels as DD 5.1.
Why can't Apple TV 4K be configured to pass either DD 5.1 or Dolby Atmos, whichever is best? Can only configure DD 5.1 or LPCM/Dolby Atmos. Thanks.
