nfcRefDist
(HOA) Indicates the reference distance of the loudspeaker setup for near-field compensation (NFC)
(element name)
element is present (extra spec name if needed)
(Dolby Atmos Master ADM Profile addition)
(subelement name)
subelement count (subelement count)
is not permitted, (min or max)
is (max count)
(extra spec name if needed)
(Dolby Atmos Master ADM Profile addition)