Probe detector for aural sound abnormal cavity and detection method of probe detector

Abstract

The invention provides a probe detector for an aural sound abnormal cavity. The probe detector is characterized in that an electroacoustic transducer and an acoustoelectric transducer for receiving sound are arranged in a probe shell, and a detected cavity is connected with the shell through a sound transmitting and receiving pipeline; and the shell is provided with a pulse stimulation sound system. The detection method comprises the steps that the probe emits basic stimulus sound, and plays stimulation short sound through the pulse stimulation sound system; and the generated basic stimulationdata is stored into a header file of an otoacoustic detection project by using simulation software to realize sample acquisition, sample data processing, statistics of stability indexes of transmitted waves and received waves and judgment of probe indexes of the detected cavity. According to the probe detector, dynamic automatic calibration of an earphone probe is realized by using a digital signal processing technology and a machine learning method, so that the purpose of distinguishing air from an abnormal coupling cavity is achieved; a program is used for automatically distinguishing detection of the probe in air and a metal coupling cavity (0.2 cc to 0.7 cc), detection of a human ear canal and extensive ear sound probe microphone calibration.

Description

technical field [0001] The invention relates to a medical hearing detection system, in particular to a probe detector for abnormal otoacoustic cavities and a detection method thereof. Background technique [0002] Otoacoustic emission is a kind of audio energy produced in the cochlea and released into the external auditory canal through the ossicular chain and tympanic membrane (Kemp, 1986). The sound intensity of the otoacoustic emission signal is too weak to arouse people's auditory awareness, and a high-sensitivity microphone placed in the external auditory canal can record the sound in the ear canal. Otoacoustic emission detection is an objective hearing detection method starting from infants and young children. Usually, after a weak magnetic pole signal is given to the cochlea, the weak sound energy is detected by a probe, transceiver, etc., to achieve the purpose of hearing detection. [0003] At present, there are very few domestic products with independent intellect...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of existing otoacoustic detection, the technical problem to be solved by the present invention is to provide a probe detector for abnormal otoacoustic cavities and its detection method, using digital signal processing technology and machine learning methods without increasing hardware costs Based on this, the dynamic automatic calibration of the earphone probe is realized, so as to achieve the purpose of distinguishing air and abnormal coupling cavity

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