Method and system for inter-channel signal redundancy...

Details Method and system for inter-channel signal redundancy... Method and system for inter-channel signal redundancy...

2005-08-23

2005-08-23

Chawan, Vijay (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Psychoacoustic

C704S230000

Reexamination Certificate

active

06934676

ABSTRACT:
A method and system for coding audio signals in a multi-channel sound system, wherein a plurality of MDCT units are used to reduce the audio signals for providing a plurality of MDCT coefficients. The MDCT coefficients are quantized according to the masking threshold calculated from a psychoacoustic model and a plurality of INT (integer-to-integer) DCT modules are used to remove the cross-channel redundancy in the quantized MDCT coefficients. The output from the INT-DCT modules is Huffman coded and written to a bitstream for transmission or storage.

REFERENCES:
patent: 4375100 (1983-02-01), Tsuji et al.
patent: 4491869 (1985-01-01), Heitmann
patent: 5610908 (1997-03-01), Shelswell et al.
patent: 5638451 (1997-06-01), Sedlmeyer
patent: 5737720 (1998-04-01), Miyamori et al.
patent: 6029129 (2000-02-01), Kliger et al.
Chen et al, “Video Compression Using Integer DCT”, Image Processing, 2000, Proceedings 2000 International Conference, vol. 2, pp. 844-845.
Cheng et al, “Integer discrete cosine transform and its fast algorithm,” Electronic Letters, vol. 37, Jan. 4, 2001, pp. 64-65.
“Transform Coding with Integer-to-Integer Transforms”, V. K. Goyal, IEEE Tranasactions on Information Theory, vol. 46, No. 2, Mar. 2000, pp. 465-473.
“An Inter-Channel Redundancy Removal Approach for High-Quality Multichannel Audio Compression”; D. Yang, H. Ai, C. Kyriakakis, C. J. Kuo; Presented at 109thAES Convention, Sep. 22-25, 2000, Los Angeles, CA.

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