ISO/IEC 23003-3:2020
Information technology — MPEG audio technologies — Part 3: Unified speech and audio coding
Product Details
This document incorporates several perceptually-based compression techniques developed in previous MPEG standards: perceptually shaped quantization noise, parametric coding of the upper spectrum region and parametric coding of the stereo sound stage. However, it combines these well-known perceptual techniques with a source coding technique: a model of sound production, specifically that of human speech.