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Content for  TS 26.253  Word version:  18.0.0

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6  Functional description of the decoderp. 427

6.1  Decoder overviewp. 427

6.2  Common processing and decoding toolsp. 428

6.2.1  Common decoder processing overviewp. 428

6.2.2  Core-decoder processingp. 433

6.2.3  Common audio decoding toolsp. 454

6.2.4  Common spatial metadata decoding toolsp. 459

6.2.5  Common filter bank operation toolsp. 467

6.2.6  CLDFB domain decorrelatorp. 468

6.2.7  Common tools for decoding with time scale modification (JBM)p. 474

6.3  Stereo audio decodingp. 481

6.3.1  Common stereo decoding toolsp. 481

6.3.2  Unified stereo decodingp. 482

6.3.3  MDCT-based stereo decodingp. 505

6.3.4  Switching between stereo modesp. 519

6.3.5  DTX operationp. 530

6.3.6  Stereo output format conversionp. 537

6.3.7  Stereo audio decoding with TSMp. 542

6.4  Scene-based audio (SBA) decodingp. 542

6.4.1  Combined DirAC and SPAR based SBA decoding overviewp. 542

6.4.2  DirAC parameter decodingp. 549

6.4.3  SPAR parameter decodingp. 549

6.4.4  SPAR and DirAC parameter mergep. 551

6.4.5  Upmix matrix calculationp. 554

6.4.6  Decoded audio processingp. 555

6.4.7  DTX operationp. 576

6.4.8  SBA PLCp. 577

6.4.9  SBA bitrate switchingp. 579

6.4.10  SBA output format conversionp. 579

6.4.11  SBA decoding with TSMp. 580

6.5  Metadata-assisted spatial audio (MASA) decodingp. 581

6.5.1  Overviewp. 581

6.5.2  Decoding MASA configurationp. 581

6.5.3  MASA metadata decodingp. 582

6.5.4  MASA DTX operationp. 587

6.5.5  MASA PLCp. 587

6.5.6  MASA bitrate switchingp. 587

6.5.7  MASA renderingp. 587

6.5.8  MASA decoding with TSMp. 599

6.6  Object-based audio (ISM) decodingp. 600

6.7  Multi-channel audio (MC) decodingp. 612

6.7.1  LFE channel decodingp. 612

6.7.2  Multi-channel MASA (McMASA) decoding modep. 617

6.7.3  Parametric MC decoding modep. 624

6.7.4  Parametric upmix MC decoding modep. 637

6.7.5  Discrete MC decoding modep. 640

6.7.6  MC bitrate switchingp. 640

6.7.7  MC output format conversionp. 641

6.7.8  MC decoding with TSMp. 648

6.8  Combined Object-based audio and SBA (OSBA) decodingp. 648

6.9  Combined Object-based audio and MASA (OMASA) decodingp. 651

6.10  EVS-compatible mono audio decodingp. 660


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