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1. WO2020140593 - METHOD AND SYSTEM FOR MEASURING TOTAL SOUND PRESSURE LEVEL OF NOISE, AND COMPUTER-READABLE STORAGE MEDIUM

Publication Number WO/2020/140593
Publication Date 09.07.2020
International Application No. PCT/CN2019/113868
International Filing Date 29.10.2019
IPC
G01H 11/06 2006.01
GPHYSICS
01MEASURING; TESTING
HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
11Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
06by electric means
CPC
G01H 11/06
GPHYSICS
01MEASURING; TESTING
HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
11Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
06by electric means
G01R 31/2825
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
28Testing of electronic circuits, e.g. by signal tracer
282Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
2825in household appliances or professional audio/video equipment
G06F 17/14
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
10Complex mathematical operations
14Fourier, Walsh or analogous domain transformations ; , e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
H04R 29/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
29Monitoring arrangements; Testing arrangements
H04R 29/004
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
29Monitoring arrangements; Testing arrangements
004for microphones
H04R 29/008
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
29Monitoring arrangements; Testing arrangements
008Visual indication of individual signal levels
Applicants
  • 瑞声声学科技(深圳)有限公司 AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD. [CN]/[CN]
  • 瑞声科技(新加坡)有限公司 AAC TECHNOLOGIES PTE. LTD. [SG]/[SG]
Inventors
  • 秦英明 QIN, Yingming
  • 向征 XIANG, Zheng
  • 谢兵 XIE, Bing
Agents
  • 深圳中细软知识产权代理有限公司 SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD.
Priority Data
201811651147.131.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND SYSTEM FOR MEASURING TOTAL SOUND PRESSURE LEVEL OF NOISE, AND COMPUTER-READABLE STORAGE MEDIUM
(FR) PROCÉDÉ ET SYSTÈME DE MESURE DU NIVEAU DE PRESSION SONORE TOTAL D'UN BRUIT, ET SUPPORT DE STOCKAGE LISIBLE PAR ORDINATEUR
(ZH) 一种噪音总声压级测量方法、系统及计算机可读存储介质
Abstract
(EN)
A method and system for measuring the total sound pressure level of noise, and a computer-readable storage medium, wherein same relate to the field of acoustics. The method for measuring the total sound pressure level of noise comprises the steps of: acquiring a time domain digital signal of a sound pressure signal of noise (S101); according to the time domain digital signal of the sound pressure signal, acquiring a frequency domain signal of the sound pressure signal (S102); according to the frequency domain signal and based on Parseval’s theorem, acquiring a sound pressure effective value of the sound pressure signal (S103); and converting the sound pressure effective value into the total sound pressure level of the noise (S104). The method for measuring the total sound pressure level of noise has the advantage of a fast measurement speed.
(FR)
La présente invention concerne un procédé et un système de mesure du niveau de pression sonore total d'un bruit, et un support de stockage lisible par ordinateur, ceux-ci se rapportant au domaine de l'acoustique. Le procédé de mesure du niveau de pression sonore total d'un bruit comprend les étapes consistant à : acquérir un signal numérique de domaine temporel d'un signal de pression sonore d'un bruit (S101); en fonction du signal numérique de domaine temporel du signal de pression sonore, acquérir un signal de domaine de fréquence du signal de pression sonore (S102); en fonction du signal de domaine de fréquence et sur la base du théorème de Parseval, acquérir une valeur efficace de pression sonore du signal de pression sonore (S103); et convertir la valeur efficace de pression sonore en niveau de pression sonore total du bruit (S104). Le procédé de mesure du niveau de pression sonore total d'un bruit présente comme avantage une vitesse de mesure rapide.
(ZH)
一种噪音总声压级测量方法、系统及计算机可读存储介质,涉及声学领域。该噪音总声压级测量方法,包括步骤:获取噪音的声压信号的时域数字信号(S101);根据声压信号的时域数字信号,获取声压信号的频域信号(S102);根据频域信号、依据帕斯瓦尔定律,获取声压信号的声压有效值(S103);将声压有效值转换为噪音的总声压级(S104)。该噪音总声压级测量方法具有测量速度较快的优点。
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