The differential perceptual audio coding (DPAC) technique is based on conventional perceptual audio coding methods, but utilizes the local stationariness of the signal to improve bit-rate requirements by up to 30% compared with these methods. Results (bit-rate requirements, NMR, seqm. SNR) are presented for the DPAC method applied to different audio signals, compared with the standard perceptual audio coding system.

Authors: Paraskevas, M.; Mourjopoulos, John
Affiliation: Wire Communications Laboratory, Electrical Engineering Dept., University of Patras, Patras, Greece
AES Convention: 96 (February 1994) Paper Number: 3794
Publication Date: February 1, 1994
Subject: Bit Rate Reduction Schemes

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