Signal synthesizing

Details Signal synthesizing Signal synthesizing

2011-04-26

2011-04-26

Faulk, Devona E (Department: 2614)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Quadrasonic

C381S023000, C704S200000

Reexamination Certificate

active

07933415

ABSTRACT:
A method of synthesizing a first (L) and a second (R) output signal from an input signal (x). The method comprises: filtering (201) the input signal to generate a filtered signal; obtaining a correlation parameter indicative of a desired correlation between the first and second output signals; obtaining a level parameter (c) indicative of a desired level difference between the first and second input signals; and transforming the input signal and the filtered signal by a matrixing operation (203) into the first and second output signals, where the matrixing operation depends on the correlation parameter and the level parameter.

REFERENCES:
patent: 5172415 (1992-12-01), Fosgate
patent: 5263087 (1993-11-01), Fosgate
patent: 6496584 (2002-12-01), Irwan et al.
patent: 6895093 (2005-05-01), Ali
patent: 6973184 (2005-12-01), Shaffer et al.
patent: 2002/0037086 (2002-03-01), Irwan et al.
patent: 2002/0118840 (2002-08-01), Irwan et al.
patent: 20024535145 (2004-11-01), None
patent: 03007656 (2003-01-01), None
patent: 03090206 (2003-10-01), None
patent: 2007010771 (2007-01-01), None
patent: 2007013775 (2007-02-01), None
patent: 2007013780 (2007-02-01), None
patent: 2007013781 (2007-02-01), None
patent: 2007013783 (2007-02-01), None
patent: 2007013784 (2007-02-01), None
M. R. Schroeder; “synthesis of low-peak-factor and binary sequences with low correlation” (Jul. 30, 1969, IEEE).
Faller C. et al, “Efficient representation of spatial audio using perceptual parametrization”, IEEE Workshop on Applications of Signal Processing to Audio Acoustics, Oct. 2001, pp. 199-202.
Van Der Waal R. G. et al, “Subband coding of stereophonic digital audio signals”, Speech Processing 2, VLSI, Underwater Signal Processing, Toronto, 1991, International Conference on Acoustics, Speech and Signal Processing, vol. 2, pp. 3601-3604.
Bosi M. et al., “ISO/IEC MPEG-2 Advanced Audio Coding”, Journal of the Audio Engineering Society, New York, vol. 45, No. 10, 1997, pp. 789-812.
Schroeder M.R.,“Synthesis of low-peak-factor signals and binary sequences with low autocorrelation”, IEEE Transact. Inf. Theor., 16:85-89, 1970.

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