Herre, J.J.HerreGbur, U.U.GburEhret, A.A.EhretDietz, M.M.DietzTeichmann, B.B.TeichmannKunz, O.O.KunzBrandenburg, K.K.BrandenburgGerhaeuser, H.H.Gerhaeuser2022-03-082022-03-082002https://publica.fraunhofer.de/handle/publica/305316The method involves grouping spectral values and detecting a group affected by noise. If a group is not noise affected a coding table out of several tables is allocated for redundancy coding of that group, while the coding table allocated to the group is referred to by a coding table number. If a group is noise affected, an additional coding table number, not referring to a coding table, is allocated to the group in order to signal that the group is noise affected and, therefore, will not be redundancy coded. USE - For digital video and audio coding according to moving picture expert group standards. ADVANTAGE - Provides extension of standard MPEG-2 AAC by facility for noise substitution without interfering with basic coding structure.de608006621patent1997-19730129