초록 ▼

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 determ

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.

대표청구항 ▼

[ What is claimed is:] [1.] A method of processing a sequence of acoustic signals arriving from an acoustic source comprising the steps of:acquiring respective streams of acoustic data at a plurality of locations during a plurality of time frames;determining whether the acoustic data acquired at any

[ What is claimed is:] [1.] A method of processing a sequence of acoustic signals arriving from an acoustic source comprising the steps of:acquiring respective streams of acoustic data at a plurality of locations during a plurality of time frames;determining whether the acoustic data acquired at any one of the locations during a particular time frame represents the beginning of the sequence of acoustic signals;identifying acoustic received signals at at least two of said locations representative of said sequence of signals if said acoustic data at any one of said locations represents the beginning of the sequence; anddetermining a direction of said source based upon the identified acoustic received signals.