An efficient algorithm for removing inter-channel redundancy in subband audio coding is presented in this paper. In our approach, the bit-weighted inter-channel prediction is applied to the Modified Discrete Cosine Transform (MDCT) coefficients. Similar to the INT-DCT based approach, no audio quality degradation will be induced by our method. In addition, the bit rate reduction performance of our method is about 8% better than that of the INT-DCT based approach for the cases that inter-channel prediction is useful.

Authors: Hang, Hsueh-Ming; Yang, Cheng-Han
Affiliation: Department of Electronics Engineering, National Chiao Tung University, Hsinchu, Taiwan, R.O.C.
AES Convention: 117 (October 2004) Paper Number: 6222
Publication Date: October 1, 2004
Session Subject: Instrumentation and Measurement; Lossy and Lossless Audio Coding

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