Head diffraction compensated stereo system

Details Head diffraction compensated stereo system Head diffraction compensated stereo system

1991-06-12

1992-08-04

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Hearing aid

381 24, H04R 502

Patent

active

051366517

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: 3088997 (1963-05-01), Bauer
patent: 3236949 (1966-02-01), Atal et al.
patent: 3238304 (1966-03-01), Yaita et al.
patent: 3566294 (1971-02-01), Takahashi
patent: 3710023 (1973-01-01), Greuzard, Sr. et al.
patent: 3725586 (1973-04-01), Iida
patent: 3892624 (1975-07-01), Shimada
patent: 4058675 (1977-11-01), Kobayashi et al.
patent: 4118599 (1978-10-01), Iwahara et al.
patent: 4119798 (1978-10-01), Iwahara
patent: 4136260 (1979-01-01), Asahi
patent: 4139728 (1979-02-01), Haramoto et al.
patent: 4192969 (1980-03-01), Iwahara
patent: 4199658 (1980-04-01), Iwahara
patent: 4218585 (1980-08-01), Carver
patent: 4219696 (1980-08-01), Kogure et al.
patent: 4308423 (1981-12-01), Cohen
patent: 4356349 (1982-10-01), Robinson
patent: 4359605 (1982-11-01), Haramoto et al.
patent: 4388494 (1983-06-01), Schone et al.
patent: 4489432 (1984-12-01), Polk
patent: 4503554 (1985-03-01), Davis
patent: 4566119 (1986-01-01), Peters
patent: 4731848 (1988-03-01), Kendall et al.
patent: 4748669 (1988-05-01), Klayman
patent: 4819269 (1989-04-01), Klayman
patent: 5034983 (1991-07-01), Cooper et al.
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 Sterophonic 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 Eng. Soc., vol. 30, No. 10, 1982, Oct., pp. 719-723.
"Precision Sound-Image-Localization Technique Utilizing Multitrack Tape Masters*", Audio Eng. Soc., 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.
Bartlett, 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", Akustische 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. 63, pp. 1332-1350 (Sep. 1975).
Damaske, P. "Head-Related Two-Channel Stereophony with Loudspeaker Reproduction," J. Acoust. Soc. Am., vol. 50, 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, 91-119 (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 Amature, 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).

Affiliated with

Also associated with

Rating

Head diffraction compensated stereo system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head diffraction compensated stereo system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head diffraction compensated stereo system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-785571