| Paper: | AE-L3.6 | ||
| Session: | Audio Signal Analysis, Modeling and Coding | ||
| Time: | Thursday, May 18, 15:40 - 16:00 | ||
| Presentation: | Lecture | ||
| Topic: | Audio and Electroacoustics: Broadband and Perceptual Coding | ||
| Title: | Multidimensional Optimization of MPEG-4 AAC Encoding | ||
| Authors: | Claus Bauer, Matt Fellers, Grant Davidson, Dolby Laboratories, United States | ||
| 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. | ||
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