An overview of the coding standard MPEG-4 audio amendments 1 and 2: HE-AAC, SSC, and HE-AAC v2

Authors:
A. C. Den Brinker;J. Breebaart;P. Ekstrand;J. Engdegård;F. Henn;K. Kjörling;W. Oomen;H. Purnhagen
Affiliations:
Philips Research Laboratories, AE, Eindhoven, The Netherlands;Philips Research Laboratories, AE, Eindhoven, The Netherlands;Dolby Sweden AB, Stockholm, Sweden;Dolby Sweden AB, Stockholm, Sweden;Dolby Sweden AB, Stockholm, Sweden;Dolby Sweden AB, Stockholm, Sweden;Philips Applied Technologies Eindhoven, AE, Eindhoven, The Netherlands;Dolby Sweden AB, Stockholm, Sweden
Venue:
EURASIP Journal on Audio, Speech, and Music Processing
Year:
2009

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Abstract

In 2003 and 2004, the ISO/IEC MPEG standardization committee added two amendments to their MPEG-4 audio coding standard. These amendments concern parametric coding techniques and encompass Spectral Band Replication (SBR), Sinusoidal Coding (SSC), and Parametric Stereo (PS). In this paper, we will give an overview of the basic ideas behind these techniques and references to more detailed information. Furthermore, the results of listening tests as performed during the final stages of the MPEG-4 standardization process are presented in order to illustrate the performance of these techniques.