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TechSpec
  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Definitions, symbols and abbreviations
  • 4 Outline description
  • 5 AAC Encoder
    • 5.1 Overview
    • 5.2 Stereo Preprocessing
    • 5.3 Filterbank
    • 5.4 Psychoacoustic Model
      • 5.4 Psychoacoustic Model
      • 5.4.1 Blockswitching
      • 5.4.2 Threshold Calculation
      • 5.4.3 Spreaded Energy Calculation
      • 5.4.4 Grouping
    • 5.5 Tools
    • 5.6 Quantization and coding
      • 5.6.1 Reduction of psychoacoustic requirements
      • 5.6.2 Scalefactor determination
      • 5.6.3 Noiseless coding
      • 5.6.4 Out of Bits Prevention

1 Scope

26.4033GPPAdvanced Audio Coding (AAC) partEncoder specificationEnhanced 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 AAC encoder part of the Enhanced aacPlus general audio codec [1].