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TechSpec
  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Definitions, symbols and abbreviations
  • 4 Outline description
  • 5 SBR encoder description
    • 5.1 SBR tools overview
    • 5.2 Analysis filterbank
    • 5.3 Frequency band tables
    • 5.4 Time / frequency grid generation
    • 5.5 Envelope estimation
    • 5.6 Additional control parameters
    • 5.6.2 Tonality estimation
      • 5.6.2 Tonality estimation
      • 5.6.3 Noise-floor estimation
      • 5.6.4 Inverse filtering estimation
      • 5.6.5 Additional sines estimation
    • 5.7 Data quantization
    • 5.8 Envelope and noise floor coding
  • 6 Bitstream

1 Scope

26.4043GPPEnhanced aacPlus encoder Spectral Band Replication (SBR) partEnhanced aacPlus general audio codecGeneral audio codec audio processing functionsRelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

This Telecommunication Standard (TS) describes the SBR encoder part of the Enhanced aacPlus general audio codec [3].