Method and apparatus for recognizing sound source

A sound source identification and sound source technology, which is applied in the field of auditory function and sound source of sound signals, can solve problems such as blind spots, large positions, and errors

Active Publication Date: 2021-09-07
金永彦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, known techniques produce considerable position errors, have blind spots, and are difficult to identify the position of sound sources existing overhead, and thus remain insufficient for unmanned systems such as self-driving vehicles

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  • Method and apparatus for recognizing sound source
  • Method and apparatus for recognizing sound source
  • Method and apparatus for recognizing sound source

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Embodiment Construction

[0034] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the present invention. The present invention is not limited to the embodiments described here, and it can be realized in many different forms. In order to clearly describe the present invention in the drawings, parts irrelevant to the gist of the present invention are omitted, and the same reference numerals are attached to the same or similar constituent elements throughout the specification.

[0035] The following description will be based on the sound source recognition method of an autonomous vehicle, but is not limited thereto. The sound source recognition method according to the present invention can be applied to any device or system that requires sound source recognition such as robots and AI speakers.

[0036] figure 1 The arrangement of an acoustic senso...

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Abstract

The present invention relates to a method and an apparatus for recognizing a sound source. According to the sound source recognition method of the present invention, an acoustic signal is detected by four acoustic sensors arranged in a rectangular shape when viewed in a horizontal direction, an acoustic arrival time is measured, six Interactive Time Differences (ITDs) are generated on the basis of the difference between the acoustic arrival times of the respective sound sensors, and the position of the sound source is estimated on the basis of the six ITDs. In addition, features of the sound source are extracted and classified by using a sum signal from the four acoustic sensors to determine the type of the sound source.

Description

technical field [0001] The present invention relates to a method and device for sound source identification, and more particularly, to a method and device for identifying sound sources of sound signals generated in the surroundings in unmanned systems such as autonomous vehicles and robots. In particular, the present invention relates to a method for identifying the volume, position (including direction, moving direction, distance) and type of a sound source of an externally generated sound signal to realize the required recognition of an unmanned system related to the surrounding sound situation. technology of auditory function. Background technique [0002] In general, when a horn or a siren is heard around a running vehicle, it is well known to recognize the source of the sound in order to assist a driver with poor hearing ability. [0003] In connection with this, Japanese Laid-Open Patent Publication No. 2015-22453 (published on February 2, 2015) discloses a technology...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/0965G10L21/0272H04R3/00G01S11/14
CPCG08G1/0965G01S11/14G10L21/0272H04S7/307H04S7/302H04R5/027H04R5/04H04R3/005H04S3/002H04R3/04
Inventor 金永彦金旻洙
Owner 金永彦
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