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Glossário de Termos da Anatel
ITU-R BS.1864
1. Recomendação de práticas operacionais de Loudness que estabeleceu o valor de referência de -24 LKFS antes da incorporação do Gated Loudness pelas novas versões da BS.1770. Como a diferença média no cálculo da intensidade subjetiva de áudio (Loudness) com e sem Gated Loudness era de aproximadamente 1 LU, a Recomendação EBU R 128-2011 ajustou o valor de referência para -23 LUFS, adotado também pela ITU-R BS.1770-2 e, consequentemente, pela Portaria MC nº 354/2012.