Head diffraction compensated stereo system with loud speaker arr

Details Head diffraction compensated stereo system with loud speaker arr Head diffraction compensated stereo system with loud speaker arr

1992-08-03

1994-07-26

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

381 24, 381 27, 381 25, H04S 100

Patent

active

053332008

ABSTRACT:
A stereo audio processing system for a stereo audio signal processing reproduction that provides improved source imaging and simulation of desired listening environment acoustics while retaining relative independence of listener movement. The system first utilizes a synthetic or artificial head microphone pickup and utilizes the results as inputs to a cross-talk cancellation and naturalization compensation circuit utilizing minimum phase filter circuits to adapt the head diffraction compensated signals for use as loudspeaker signals. The system provides for head diffraction compensation including cross-coupling while permitting listener movement by limiting the cross-talk cancellation and diffraction compensation to frequencies substantially below approximately ten kilohertz.

REFERENCES:
patent: 4418243 (1983-11-01), Fixler
patent: 4968154 (1990-11-01), Baeg
patent: 5027403 (1991-06-01), Short et al.
patent: 5109416 (1992-04-01), Croft
patent: 5113447 (1992-05-01), Hatley et al.
patent: 5197100 (1993-03-01), Shiraki
Cooper, Duane H., "Calculator Program for Head-Related Transfer Function", Audio Engineering Society, vol. 30, No. 1/2, 1982 Jan./Feb., pp. 34-38.
"Controlling Sound-Image Localization in Steriophonic Reproduction", J. Audio Engineering Society, vol. 29, No. 11, 1981, Nov., pp. 794-799.
"Controlling Sound-Image Localization in Stereophonic Reproduction: Part II*", J. Audio Engineering Society, vol. 27, No. 1/2, 1979 Jan./Feb., pp. 32-39.
"Precision Sound-Image Localization Technique Utilizing Multitrack Tape Masters*", Audio Engineering Society, vol. 27, No. 1/2, 1979 Jan./Feb., pp. 32-39.
"On the simulation of sound localization", J. Acoust. Soc. Jpn (E) 1,3 (1980), pp. 167-174. Bartlet, Bruce, Recording Techniques: Simple Stereo Microphone Techniques, db Sep.-Oct. 1986.
"On Acoustical Specification of Natural Stereo Imaging", An Audio Engineering Society Reprint (Presented at the 66th Convention 1980, May 6-9, Los Angeles), 1649 (H-7), pp. 1-53.
Schwarz, Von L., "Zur Theorie der Beugung einer ebenen Schallwelle an der kugel", Akustishe Zeitschrift 1943, pp. 91-117.
Schroeder, M. R., et al., "Computer Simulation of Sound Transmission in Rooms", IEEE Conv. Record, Pt. 7, pp. 150-155 (1963).
Schroeder, M. R., "Digital Simulation of Sound Transmission in Reverberant Spaces", J. Acoust. Soc. Am., vol. 47, pp. 424-431 (Feb. 1970).
Schroeder, M. R., "Computer Models for Concert Hall Acoustics", Am. Journal Phys., vol. 41, pp. 461-471 (Apr. 1973).
Schroeder, M. R., "Models of Hearing," Proc. IEEE, vol. 6, pp. 1332-1350 (Sep. 1975).
Damaske, P., "Head-Related Two-Channel Stereophony with pt. 2", pp. 1109-1115 (Oct. 1971).
Mehrgardt, S., et al., "Transformation Characteristics of the External Human Ear," J. Acoust. Soc. Am., vol. 61, pp. 1567-1576 (Jun. 1977).
Cooper, H., et al., "Corrections to L. Schwarz, `On the Theory of Diffraction of a Plane Soundwave Around a Sphere` [`Zur Theorie der Beugung einer ebenen Schallwelle an der Kugel,` Akust.Z. 8, 91-117 (1943)]," J. Acoust. Soc. Am., vol. 80, pp. 1793-1802 (Dec. 1986).
Gerzon, M. A., "Stereo Shuffling: New Approach--Old Technique," Studio Sound, pp. 123-130 (Jul. 1986).
Parsons, T. W., "Super Stereo" Wave of the Future? The Audio Amateur, vol. IX, pp. 19-20 (Jun. 1978).
Nakabayashi, K., "A Method of Analyzing the Quadraphonic Sound Field," J. Audio Eng. Soc., vol. 23, pp. 187-193 (Apr. 1975).
Snow, William B., "Basic Principles of Stereophonic Sound" Journal of the SMPTE, vol. 61, pp. 567-589 (Nov. 1953).
Nelson, P., et al., "Adaptive Inverse Filters for Stereophonic Sound Reproduction," IEEE Transaction on Signal Processing, vol. 40, No. 7, pp. 1621-1631 (Jul. 1992).

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