Technical Program

Paper Detail

Paper:AE-P3.9
Session:Broadband Coding, Perceptual Coding, and Auditory Modeling
Time:Thursday, May 20, 13:00 - 15:00
Presentation: Poster
Topic: Audio and Electroacoustics: Broadband and Perceptual Coding
Title: BIT ALLOCATION ALGORITHMS FOR FREQUENCY AND TIME SPREAD PERCEPTUAL CODING
Authors: Ricky Der; McGill University 
 Peter Kabal; McGill University 
 Wai-Yip Chan; Queen's University 
Abstract: We examine the problem of bit allocation in a constant-distortion coding context, whentime-spread and frequency-spread perceptual distortion criteria are used. For such measures,standard incremental techniques can fail. Two algorithms are introduced for bit allocation;the first a multi-band version of the greedy algorithm, and the second an inverse greedyalgorithm initialized by the bit allocation of a forward algorithm driven by a non-spreadmetric. Experimental results show the second algorithm outperforms the first.
 
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