Method and apparatus for localization of an acoustic source

Details Method and apparatus for localization of an acoustic source Method and apparatus for localization of an acoustic source

1996-06-14

1998-07-07

Isen, Forester W.

Electrical audio signal processing systems and devices

Directive circuits for microphones

348 15, H04N 715

Patent

active

057780820

ABSTRACT:
An acoustic signal processing method and system using a pair of spatially separated microphones to obtain the direction or location of speech or other acoustic signals from a common sound source is disclosed. The invention includes a method and apparatus for processing the acoustic signals by determining whether signals acquired during a particular time frame represent the onset or beginning of a sequence of acoustic signals from the sound source, identifying acoustic received signals representative of the sequence of signals, and determining the direction of the source based upon the acoustic received signals. The invention has applications to videoconferencing where it may be desirable to automatically adjust a video camera, such as by aiming the camera in the direction of a person who has begun to speak.

REFERENCES:
patent: 4581758 (1986-04-01), Coker et al.
patent: 4741038 (1988-04-01), Elko et al.
patent: 4965819 (1990-10-01), Kannes
patent: 4980761 (1990-12-01), Natori
patent: 5058419 (1991-10-01), Nordstrom et al.
patent: 5206721 (1993-04-01), Ashida et al.
patent: 5335011 (1994-08-01), Addeo et al.
patent: 5465302 (1995-11-01), Lazzari et al.
patent: 5550924 (1996-08-01), Helf et al.
M. Omologo and P. Svaizer, "Acoustic Event Localization Using A Crosspower-Spectrum Phase Based Technique," Proceedings of the 1994 International Conference on Acoustics, Speech, and Signal Processing, Apr. 1994, Adelaide, South Australia, pp. II-273 to II-276.

Affiliated with

Also associated with

Rating

Method and apparatus for localization of an acoustic source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for localization of an acoustic source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for localization of an acoustic source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1215224