Note 1: For a description of ‘long-term loudness level’ see § 3.2.
Note 2: Dolby Digital (Plus) is also identified in this document as DD/DD+.
Note 3: This assumption is also applied in the rest of this document. Instead of referring to a signal reference level of -31 dBFS as described in section E.4.3.1 of ETSI TS 102 366, this document refers to a loudness level of -31 LUFS as Decoder Target Level. This level is achieved if the absolute value of the ‘Dialnorm’ descriptor of the DD/DD+ bitstream equals the Programme Loudness Level according to EBU R 128