Acoustic direction identification system

Details Acoustic direction identification system Acoustic direction identification system

1983-11-04

1986-04-08

Dwyer, James L.

Electrical audio signal processing systems and devices

Monitoring of sound

381 92, 367125, 179 18BC, H04M 100

Patent

active

045817588

ABSTRACT:
A system insensitive to nonspeech sounds utilizes a pair of spatially separated microphones to obtain the direction of origin of speech signals from a common sound source. The speech signal from each microphone is transformed into a pulse representative signal having a rapid increase responsive to pitch peaks of energy from the sound source. The cross correlation of these pulses accurately reflects the phase relationship between the speech signals arriving at the microphones. The cross correlation is implemented as time interval histograms which are periodically read to identify the direction of the common sound source.

REFERENCES:
patent: 3878381 (1975-04-01), Broder et al.
patent: 4031501 (1977-06-01), Caruso
patent: 4131760 (1978-12-01), Christensen et al.

Affiliated with

Also associated with

Rating

Acoustic direction identification 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 Acoustic direction identification system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic direction identification system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2070074