Auditory Sensitivity Detection System Based on Stimulus Frequency Otoacoustic Emissions

Abstract

An auditory sensitivity detection system based on stimulus-frequency otoacoustic emissions. The detection system comprises an audio card (2), an acoustic sensor (3), a computer (1) and a signal feedback device. An input end of a micro loudspeaker (31) is connected to the audio card (2); an output end of a micro microphone (32) is connected to the audio card (2); the signal feedback device is connected to the computer (1); an auditory sensitivity comprehensive detection system is provided in the computer (1); and a test execution system comprises an intensity sensitivity detection module based on SFOAEs and a frequency sensitivity detection module based on SFOAEs, wherein the intensity sensitivity detection module based on SFOAEs is used for determining an auditory intensity threshold value corresponding to a corresponding frequency point by detecting stimulus-frequency otoacoustic emission detection data at each frequency point, and the frequency sensitivity detection module based on SFOAEs is used for extracting a stimulus-frequency otoacoustic emission suppression tuning curve at a designated frequency point and determining the frequency sensitivity at the designated frequency point.

Description

technical field [0001] The invention relates to an auditory detection system, in particular to an auditory sensitivity detection system for objectively, quantitatively and comprehensively detecting the intensity sensitivity and frequency sensitivity of the auditory system based on stimulation frequency otoacoustic emission. Background technique [0002] Otoacoustic emissions (OAEs) are weak audio energy produced in the cochlea of ​​the inner ear, transmitted through the ossicular chain and tympanic membrane, and released to the external auditory canal. It is part of the normal function of the human ear. This phenomenon was first discovered by British scholar David Kemp in 1978 and applied clinically. The discovery of otoacoustic emission has confirmed that the cochlea, as a peripheral auditory receptor, can not only passively convert external acoustic signals into bioelectrical signals and send them to the center to cause hearing, but also has an active energy release proces...

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Problems solved by technology

However, this patent does not involve the detection of stimulus frequency otoacoustic emissions, and the technology and method of using SFOAEs to perform objective quantitative detection of the auditory system's intensity hearing threshold. At the same time, it does not involve the use of SFOAE STCs for quantitative detection of the frequency sensitivity of the auditory system and method; in addition, the patent application number is 201210333260.1, and the title of the invention is "A Stimulus Frequency Otoacoustic Emission Tuning Curve Detection and Calibration System" only discloses the detection method of the stimulation frequency otoacoustic emission tuning curve and the detection technology of the calibration system, but There are no techniques and methods related to the objective and quantitative detection of the intensity hearing threshold of the auditory system using stimulus frequency otoacoustic emissions, nor detailed techniques and methods related to the quantitative detection of frequency sensitivity of the auditory system using SFOAE STCs

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