51
Leopold Neumann: Audio signal processing circuit for use in a hearing aid and method for operating same. Analogic Corporation, David W Gomes, July 14, 1987: US04680798 (30 worldwide citation)

In a hearing aid of the type having an electrical amplifier, wherein the improvement provides an audio signal processing circuit incorporated into the amplifier and including integral computing circuitry for controlling the operation thereof; the processing circuit providing circuitry for receiving ...


52
Hisashi Kihara, Shinjiro Kato, Fumio Tamura, Shuichi Mori: Digital audio signal processing apparatus. Pioneer Electronic Corporation, Perman & Green, May 11, 1993: US05210806 (30 worldwide citation)

Disclosed herein is a digital audio signal processing apparatus of a type wherein a graphic equalizer including a plurality of filters connected in series to one another is subjected to arithmetic operation processing to be defined to thereby output the result of its processing as data therefrom. Wh ...


53
Bernd Girod: Video-assisted audio signal processing system and method. Netergy Microelectronics, November 19, 2002: US06483532 (29 worldwide citation)

A circuit arrangement for controlling audio signal transmissions for a communications system that includes a microphone and a video camera. The arrangement comprises a video processor configured and arranged to receive a video signal from the video camera, detect movement of an object in the video s ...


54
Duane H Cooper, Jerald L Bauck: Head diffraction compensated stereo system. Welsh & Katz, August 4, 1992: US05136651 (28 worldwide citation)

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 micr ...


55
Duane H Cooper, Jerald L Bauck: Head diffraction compensated stereo system with optimal equalization. Welsh & Katz, December 4, 1990: US04975954 (28 worldwide citation)

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 micr ...


56
Duane H Cooper, Jerald L Bauck: Head diffraction compensated stereo system. Welsh & Katz, July 23, 1991: US05034983 (28 worldwide citation)

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 micr ...


57
Toshiyuki Kaji, Naomi Yamamoto, Toshihiro Nakane: Audio signal processing device. Kabushiki Kaisha Sega, Finnegan Henderson Farabow Garrett & Dunner L, April 11, 2006: US07027600 (28 worldwide citation)

The audio signal processing device of the present invention arranges objects in a virtual three-dimensional space and generates audio signals by performing, at a prescribed listening position, audio simulation to sounds generated from a prescribed sounding position. This invention is characterized i ...


58
Tanaka Yoshiaki, Ueno Shoji, Fuchigami Norihiko: Audio signal processing apparatus. Victor Company of Japan, May 17, 2000: EP1001549-A2 (27 worldwide citation)

An audio signal encoding apparatus includes a device for compressing multiple-channel digital audio signals into compression-resultant multiple-channel signals respectively. The multiple-channel digital audio signals relate to a sampling frequency and a quantization bit number. The compression-resul ...


59
Philip Nicholas Cuthbertson Hill, Christopher James Pickard: Audio signal processing. Nixon & Vanderhye P C, February 3, 1998: US05715318 (26 worldwide citation)

An audio signal processing system in which a visual display (15) is arranged to provide a visual representation (16) of a sound generating device (111) a notional listening position and a space in which a perceivable sound source may be located. A visual characteristic of the displayed space is modi ...


60
Norihiko Fuchigami, Shoji Ueno, Yoshiaki Tanaka: Audio signal processing apparatus. Victor Company of Japan, Louis Woo, October 8, 2002: US06463410 (26 worldwide citation)

In an audio signal encoding apparatus, a first audio signal and a second audio signal are added into an addition-result signal. The first audio signal is subtracted from the second audio signal to generate a subtraction-result signal. A first difference signal is generated which represents a differe ...



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