Device and method for listening to sound

A technology of position identification and final position, which is applied in the field of sound direction identification, can solve the problems of high algorithm complexity and high hardware requirements, achieve the effect of low algorithm complexity, low processor requirements, and improve the accuracy of discrimination

Active Publication Date: 2018-04-10
深思考人工智能机器人科技(北京)有限公司
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Problems solved by technology

[0007] The purpose of the present invention is to provide a device and a method for listening to and identifying positions in order to overcome the technical problems of high algorithm complexity and high hardware requirements in the existing sound direction recognition method. The device does not use a multiplier, and the method It does not require a huge amount of calculations to accurately identify the direction of the sound

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  • Device and method for listening to sound
  • Device and method for listening to sound
  • Device and method for listening to sound

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Embodiment Construction

[0031] A device and method for listening to position identification according to the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] A device for hearing and identifying positions provided by the present invention includes: at least four sound source receivers and a central processing unit; all sound source receivers are evenly distributed along the circumference, and the space where the device is located is divided into several quadrants, And the signal output end of each sound source receiver is connected with the central processing unit; the sound source receiver receives the external sound source signal and converts it into a digital signal and then inputs it to the central processing unit; the central processing unit The processor judges the two sound source receivers that first receive the sound source signal through the set threshold to determine the quadrant where the sound source signal is loca...

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Abstract

The invention provides a device and method for distinguishing a position by listening to sound.The device comprises at least four sound source receivers distributed in the axial direction and a central processing unit.The signal output ends of the sound source receivers are connected with the central processing unit.The sound source receivers receive external sound source signals and convert the sound source signals into digital signals to be input into the central processing unit.The central processing unit judges the two sound source receivers which receive the sound source signals earliest by means of the set threshold value so as to determine the quadrant where the sound source signals are located, and calculates the sound source position by recording two time points for receiving the sound source signals earliest.By the utilization of the device and the method for distinguishing the position by listening to the sound, accurate sound source position information can be obtained only by adopting threshold value needs for judging and analyzing the time difference for receiving the signals, and a multiplying unit does not need to be used, so that the requirement for a processor is low; the large calculation amount is not needed, and the algorithm complexity is low; reliability on hardware performance is small.

Description

technical field [0001] The invention relates to the technical field of sound direction recognition, in particular to a device and method for listening to sound and identifying positions. Background technique [0002] Sound is an important means of conveying information. The sound direction recognition technology is to obtain the position information of the sound source through the sound, judge the direction of the sound source, and then generate an appropriate response. It has been widely used in applications such as voice-controlled nursing robots and conference microphone directional enhancement. [0003] At present, there are two main technologies for sound direction recognition: [0004] The first is the peak detection method. The peak detection method first amplifies and filters the sound wave received by the microphone, and then converts the sound wave into a triangular wave through integral processing; then, by comparing the peak value of the triangular wave corresp...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/22
CPCG01S5/22
Inventor 杨志明
Owner 深思考人工智能机器人科技(北京)有限公司
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