Sound source localization system and sound source localization method
First Claim
Patent Images
1. A sound source localization system, comprising:
- a plurality of sound capturing devices for sensing a sound source and outputting a plurality of time domain signals correspondingly; and
a processing unit for transforming the time domain signals into a plurality of frequency domain signals, performing a cross spectrum process according to the frequency domain signals to determine a plurality of time differences of arrival (TDOA), and locating the sound source according to the time differences of arrival and locations of the sound capturing devices.
1 Assignment
0 Petitions
Accused Products
Abstract
A sound source localization system and a sound source localization method. The sound source localization system includes sound capturing devices and an arithmetic unit. The sound capturing devices sense a sound source to output time domain signals. The arithmetic unit transforms the time domain signals into frequency domain signals, performs a cross spectrum process according to the frequency domain signals to determine time differences of arrival, and locates the sound source according to the time differences of arrival and locations of the sound capturing devices.
-
Citations
20 Claims
-
1. A sound source localization system, comprising:
-
a plurality of sound capturing devices for sensing a sound source and outputting a plurality of time domain signals correspondingly; and a processing unit for transforming the time domain signals into a plurality of frequency domain signals, performing a cross spectrum process according to the frequency domain signals to determine a plurality of time differences of arrival (TDOA), and locating the sound source according to the time differences of arrival and locations of the sound capturing devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A sound source localization method, comprising the steps of:
-
(a) utilizing a plurality of sound capturing devices to sense a sound source and output a plurality of time domain signals correspondingly; (b) respectively transforming the time domain signals into a plurality of frequency domain signals; (c) performing a cross spectrum process according to the frequency domain signals to determine a plurality of time differences of arrival (TDOA); and (d) locating the sound source according to the time differences of arrival and locations of the sound capturing devices. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification