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Real-Time Implementation of the MPEG-4 Low-Delay Advanced Audio Coding Algorithm (AAC-LD) on Motorola's DSP56300

MPEG-4 Low-Delay Advanced Audio Coding (LD-AAC) out performs traditional low-delay codecs, such as the ITU-T schemes G.711 or G.722, at the same bit rate. Especially for nonspeech signals, it delivers a better performance at lower bit rates than specialized speech codecs. This paper discusses the selection of a fixed-point DSP platform and describes the effects and the way to be a functional real-time implementation of an AAC-LD codec on Motorola's DSP56300.

Authors: Hilpert, Johannes; Gayer, Marc; Lutzky, Manfred; Hirt, Thomas; Geyersberger, Stefan; Hoepfl, Josef
Affiliations: Fraunhofer IIS, Erlangen, Germany ; DSP-Solutions, Regensburg, Germany(See document for exact affiliation information.)
AES Convention:108 (February 2000) Paper Number:5081 Import into BibTeX
Subject:Audio Coding

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