DocumentCode
2329352
Title
Multidimensional Optimization of MPEG-4 AAC Encoding
Author
Bauer, Claus ; Fellers, Matt ; Davidson, Grant
Author_Institution
Dolby Lab., San Francisco, CA
Volume
5
fYear
2006
fDate
14-19 May 2006
Abstract
The subjective quality achieved by most audio codecs, including MPEG-4 AAC, depends strongly on the algorithms used for encoder parameter selection. As a practical measure in conventional encoders, the overall encoding procedure is usually divided into a sequence of smaller problems that are solved heuristically. In this paper, we formulate the MPEG-4 AAC encoding problem as a multidimensional optimization procedure and present simulation results indicating performance gains relative to conventional approaches
Keywords
audio coding; codecs; integer programming; linear programming; MPEG-4 AAC encoding; audio codecs; encoder parameter selection; multidimensional optimization procedure; Bit rate; Codecs; Decoding; Distortion measurement; Encoding; Entropy; MPEG 4 Standard; Multidimensional systems; Quantization; Signal resolution;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location
Toulouse
ISSN
1520-6149
Print_ISBN
1-4244-0469-X
Type
conf
DOI
10.1109/ICASSP.2006.1661214
Filename
1661214
Link To Document