Otoacoustic emission signal detection system and method

Abstract

The invention relates to an otoacoustic emission signal detection system and method, and the system comprises a collection and transmission module which is used for transmitting a stimulation signal and collecting an auditory meatus signal. And the fine structure detection mechanism comprises a DPOAEs fine structure detection module and an SFOAEs fine structure detection module which are respectively used for extracting fine structure information of otoacoustic emission from the auditory meatus signal. The I / O function detection mechanism comprises a DPOAEs I / O function detection module and an SFOAEs I / O function detection module which are respectively used for extracting I / O function information of otoacoustic emission from auditory meatus signals, so that the comprehensive research type otoacoustic emission instrument with a test parameter customizable SFOAEs and DPOAEs multi-test parameter rapid detection function is realized. Comprising a frequency dimension fine structure detection function and an intensity dimension I / O function detection function, and can be suitable for different demand scenes related to otoacoustic emission research and application.

Description

Technical Field

[0001] The present invention relates to the technical field of auditory system detection, and in particular to an otoacoustic emission signal detection system and method. Background Art

[0002] Otoacoustic emissions (OAEs) are weak audio frequencies generated in the cochlea of the inner ear, transmitted through the ossicular chain and the eardrum, and released into the external auditory canal. They are part of the normal function of the human ear. Depending on the presence or absence of external stimuli, OAEs can be divided into two categories: spontaneous Otoacoustic Emissions (SOAEs) and evoked Otoacoustic Emissions (EOAEs). EOAEs are further divided into three categories, depending on the evoked stimulus: transient-evoked Otoacoustic Emissions (TEOAEs), distortion-product Otoacoustic Emissions (DPOAEs), and stimulus-frequency Otoacoustic Emissions (SFOAEs).

[0003] Currently, clinically used otoacoustic emission detectors primarily detect TEOAEs and DPOAEs, enabling hearing screening. TEOAEs are induced by a click, while DPOAEs are induced by a pair of frequency-proportional pure tones. Therefore, DPOAEs generally have higher frequency specificity than TEOAEs. Despite this, existing clinical instruments require multiple tests by modifying pure tone test parameters when detecting DPOAEs at multiple test intensities and frequencies, which is very time-consuming. Furthermore, other currently available instruments do not have the capability to rapidly detect multi-parameter SFOAEs. DPOAEs and SFOAEs have different generation principles and different active response patterns to cochlear outer hair cells. Combined acquisition of these two OAE signals in an individual facilitates better observation and analysis of the working state and functional characteristics of the human cochlea. Furthermore, fully observing OAEs at multiple test frequencies and intensities provides a more comprehensive understanding of the working state of the human cochlea. Therefore, the ability to rapidly acquire multi-parameter OAEs is essential for improving the clinical applicability of instruments.

[0004] The prior art discloses portable, full-function otoacoustic emission detection systems, specifically those based on USB multimedia sound cards. These systems enable full-function quantitative detection and analysis of transient evoked otoacoustic emissions (TEOAEs) and distortion otoacoustic emissions (DPOAEs). However, they do not include the ability to acquire DPOAEs or TEOAEs with high frequency resolution, i.e., fine structure. The prior art also discloses a hearing threshold and / or hearing status detection system, entitled "A Hearing Threshold and / or Hearing Status Detection System Based on I / O Functions of Stimulus Frequency Otoacoustic Emissions (SFOAEs)." This system only involves detection technology for estimating hearing thresholds using a multi-intensity input / output (I / O) function of stimulus frequency otoacoustic emissions, but similarly does not involve acquiring SFOAEs with high frequency resolution or using this technology for hearing threshold detection. Furthermore, it is difficult to find otoacoustic emission detectors in the prior art that simultaneously acquire both DPOAEs and SFOAEs.

[0005] In summary, it is difficult for existing otoacoustic emission instruments to combine and quickly acquire SFOAEs and DPOAEs signals with high frequency resolution and multiple test intensities. The lack of multi-parameter dual-type OAEs rapid acquisition function has, to a certain extent, restricted the further development of otoacoustic emission detectors. Summary of the Invention

[0006] Based on this, it is necessary to provide an otoacoustic emission signal detection system and method that can collect both DPOAEs and SFOAEs to address the above technical problems.

[0007] A first aspect of the present invention provides an otoacoustic emission signal detection system, the system comprising:

[0008] An acquisition and transmission module, configured to transmit stimulation signals and acquire ear canal signals;

[0009] A fine structure detection mechanism, comprising a DPOAEs fine structure detection module and an SFOAEs fine structure detection module, each configured to extract fine structure information of otoacoustic emissions from the ear canal signal;

[0010] The I / O function detection mechanism includes a DPOAEs I / O function detection module and an SFOAEs I / O function detection module, each of which is used to extract I / O function information of otoacoustic emissions from the ear canal signal.

[0011] Furthermore, the acquisition and transmission module includes a stimulation signal sending structure and a signal collection structure;

[0012] The stimulation signal sending structure is composed of an interconnected headphone amplifier and a micro speaker;

[0013] The signal acquisition structure is composed of interconnected miniature microphones and microphone amplifiers.

[0014] Furthermore, the headphone amplifier is connected to the output end of the signal conversion structure, and the micro speaker includes a first electroacoustic transducer for transmitting stimulation sound and a second electroacoustic transducer for transmitting suppression sound, which are used to induce DPOAEs signals and SFOAEs signals.

[0015] Furthermore, the first electroacoustic transducer and the second electroacoustic transducer are both inserted into the earplug through two sound tubes, and the input ends of the first electroacoustic transducer and the second electroacoustic transducer are both connected to the headphone amplifier through a TRS interface;

[0016] The micro speaker is used to perform electroacoustic conversion on the analog voltage signal, and transmit the converted acoustic signal to the ear of the subject through the earplug.

[0017] Furthermore, the miniature microphone has an acoustic-electric transducer, and the acoustic-electric transducer is used to convert an acoustic signal into an electrical signal;

[0018] The input end of the miniature microphone is inserted into the earplug through a transmission sound tube, and the output end of the miniature microphone is connected to the input end of the microphone amplifier, and the output end of the microphone amplifier is connected to the input end of the signal conversion structure.

[0019] Furthermore, the fine structure detection mechanism further includes a first test sound parameter setting module, a first test sound signal generating module and a first test sound signal stimulating module;

[0020] The first test sound parameter setting module is used to set fine structure detection parameters according to the input test parameters;

[0021] The first test sound signal generating module is used to generate a corresponding first digital test sound according to the fine structure detection parameter;

[0022] The first test sound signal stimulation module is used to emit the first digital test sound generated by the first test sound signal generation module.

[0023] Furthermore, the I / O function detection mechanism further includes a second test sound parameter setting module, a second test sound signal generating module, and a second test sound signal stimulating module;

[0024] The second test sound parameter setting module is used to set the I / O function detection parameters according to the input test parameters;

[0025] The second test sound signal generating module is used to generate a corresponding second digital test sound according to the I / O function detection parameter;

[0026] The second test sound signal stimulation module is used to emit the second digital test sound generated by the second test sound signal generation module.

[0027] A second aspect of the present invention provides a method for detecting otoacoustic emission signals, which is implemented by the otoacoustic emission signal detection system described in the first aspect. The method comprises:

[0028] The multi-frequency point fine structure information and multi-test intensity point information of SFOAEs and DPOAEs signals are detected by the fine structure detection mechanism and the I / O function detection mechanism;

[0029] Sending different test sound signals to the subject's ear canal based on the multi-frequency point fine structure information and the multi-test intensity point information to obtain ear canal signals, wherein the ear canal signals include swept frequency test signals and pure tone test signals;

[0030] receiving the swept frequency test signal according to a specified intensity and frequency range, and calculating the SFOAEs signal and the DPOAEs signal of each frequency from the ear canal signal through time-frequency analysis to obtain fine structure information of the SFOAEs signal and the DPOAEs signal; and

[0031] The pure tone test signal is received according to a specified frequency and intensity range, and SFOAEs signals and DPOAEs signals of various intensities are calculated from the pure tone test signal through spectrum analysis to obtain I / O function information of the SFOAEs signal and the DPOAEs signal.

[0032] A third aspect of the present invention provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the otoacoustic emission signal detection method according to the second aspect when executing the computer program.

[0033] A fourth aspect of the present invention provides a computer storage medium storing a computer program, wherein when the computer program is executed by a processor, the method for detecting otoacoustic emission signals according to the second aspect is implemented.

[0034] The above-mentioned otoacoustic emission signal detection system and method have the following beneficial effects:

[0035] (1) The present invention has the function of detecting the fine structure of SFOAEs and DPOAEs with customizable parameters. According to different test requirements, any combination of test parameters can be set in advance to achieve rapid detection of multi-frequency SFOAEs or DPOAEs with target frequency range, frequency resolution and test intensity. The customized parameter acquisition of fine structure information helps to study the cochlear function status of a specified area through otoacoustic emission monitoring.

[0036] (2) The present invention has a detection function for the I / O functions of SFOAEs and DPOAEs with customizable parameters. According to different test requirements, any combination of test parameters can be set in advance to achieve rapid detection of SFOAEs or DPOAEs at multiple intensity points within the target intensity range, intensity step, and test frequency. The customized acquisition of I / O function information is helpful for studying the nonlinear dynamic function of the cochlea at a specified frequency under different sound input intensities through otoacoustic emission monitoring.

[0037] (3) This invention provides a comprehensive research otoacoustic emission instrument with customizable test parameters for rapid detection of multiple parameters, including SFOAEs and DPOAEs, including fine structure detection in the frequency dimension and I / O function detection in the intensity dimension. The instrument's test results are highly reliable and applicable to diverse scenarios involving otoacoustic emission research and applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 A schematic diagram of the structure of the otoacoustic emission signal detection system provided by the present invention;

[0040] Figure 2 A schematic structural diagram of an acquisition and transmission module of an otoacoustic emission signal detection system in a specific embodiment of the present invention;

[0041] Figure 3 A schematic diagram of the flow of fine structure detection and I / O function detection of an otoacoustic emission signal detection system in a specific embodiment of the present invention;

[0042] Figure 4 A schematic diagram of a process for detecting fine structure by a fine structure detection module of an otoacoustic emission signal detection system in a specific embodiment of the present invention;

[0043] Figure 5 A schematic diagram of a flow chart of an I / O function detection module of an otoacoustic emission signal detection system detecting an I / O function in a specific embodiment of the present invention;

[0044] Figure 6 A schematic flow chart of the otoacoustic emission signal detection method provided by the present invention;

[0045] Figure 7 This is a diagram of the internal structure of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0047] The following combination Figures 1 to 7 The otoacoustic emission signal detection system and method of the present invention are described.

[0048] like Figure 1 As shown, in one embodiment, an otoacoustic emission signal detection system includes:

[0049] The acquisition and transmission module is used to transmit stimulation signals and acquire ear canal signals.

[0050] In some embodiments, the otoacoustic emission signal detection system provided by the present invention has an acquisition and transmission module including a stimulation signal emitting structure and a signal retrieval structure. The stimulation signal emitting structure is composed of an interconnected headphone amplifier and a micro-speaker, and the signal retrieval structure is composed of an interconnected micro-microphone and a microphone amplifier.

[0051] The headphone amplifier is connected to the output end of the signal conversion structure. The micro speaker includes a first electroacoustic transducer for transmitting stimulation sound and a second electroacoustic transducer for transmitting suppression sound, and is used to induce DPOAEs signals and SFOAEs signals.

[0052] The first and second electroacoustic transducers are inserted into the earbud via two acoustic tubes. Their inputs are connected to a headphone amplifier via a TRS interface. A microspeaker converts analog voltage signals into electroacoustic signals and transmits the resulting acoustic signals through the earbud to the subject's ear.

[0053] The miniature microphone has an acoustic-electric transducer for converting acoustic signals into electrical signals. The input of the miniature microphone is inserted into the earbud via a transmission sound tube, and the output of the miniature microphone is connected to the input of a microphone amplifier, which in turn is connected to the input of a signal conversion structure.

[0054] The fine structure detection mechanism includes a DPOAEs fine structure detection module and a SFOAEs fine structure detection module, which are respectively used to extract fine structure information of otoacoustic emissions from ear canal signals.

[0055] In some embodiments, the otoacoustic emission signal detection system provided by the present invention further comprises a first test sound parameter setting module, a first test sound signal generation module, and a first test sound signal stimulation module. The first test sound parameter setting module is configured to set fine structure detection parameters based on input test parameters. The first test sound signal generation module is configured to generate a corresponding first digital test sound based on the fine structure detection parameters. The first test sound signal stimulation module is configured to emit the first digital test sound generated by the first test sound signal generation module.

[0056] The I / O function detection mechanism includes a DPOAEs I / O function detection module and a SFOAEs I / O function detection module, which are respectively used to extract I / O function information of otoacoustic emissions from ear canal signals.

[0057] In some embodiments, the otoacoustic emission signal detection system provided by the present invention further comprises an I / O function detection mechanism comprising a second test sound parameter setting module, a second test sound signal generation module, and a second test sound signal stimulation module. The second test sound parameter setting module is configured to set I / O function detection parameters based on input test parameters. The second test sound signal generation module is configured to generate a corresponding second digital test sound based on the I / O function detection parameters. The second test sound signal stimulation module is configured to emit the second digital test sound generated by the second test sound signal generation module.

[0058] Combine Figures 2 to 5 As shown, in a specific embodiment, the present invention provides an otoacoustic emission signal detection system, which uses a multi-parameter otoacoustic emission detection instrument as a carrier to implement corresponding functions, and can detect the fine structure and I / O function of SFOAEs and DPOAEs from the frequency dimension and intensity dimension respectively. The multi-parameter otoacoustic emission detection instrument specifically includes:

[0059] The acquisition and transmission system is used to transmit stimulation signals and acquire ear canal signals.

[0060] The signal analysis system is used to calculate and extract target OAEs information from the collected ear canal signals, specifically including a fine structure detection system and an I / O function detection system.

[0061] The fine structure detection system is used to calculate and extract multi-frequency SFOAEs and DPOAEs signals, i.e. fine structure information, from the collected ear signals.

[0062] The I / O function detection system is used to calculate and extract SFOAEs and DPOAEs signals of multiple test intensities from the collected ear signals, namely, I / O function information.

[0063] See also Figure 2As shown, the acquisition and transmission system includes a signal sending device, a signal conversion device, a stimulation signal sending structure and a signal collection structure. The signal sending device is used to stimulate the signal source to send a digital signal, and the signal sending device can use a computer 1 to send a digital signal. The signal conversion device is used to perform A / D and D / A conversion on the signal. The signal sending device can use an acquisition card 2 to achieve signal conversion. The acquisition card 2 uses an acquisition card that can be connected to the computer 1, and is used to convert the digital signal sent by the computer 1 into an analog voltage signal. When performing the test, a portable acquisition card with a 24-bit sampling depth and a sampling rate of 48kHz can be used, and connected to the computer 1 via a USB interface.

[0064] The stimulation signal emitting structure is used to transmit stimulation signals to the human ear, and the stimulation signal emitting structure may include a headphone amplifier 3 and a micro-speaker 4 connected in sequence. The headphone amplifier 3 is connected to the two output ends of the acquisition card 2 to achieve power amplification and impedance matching of the two output signals of the acquisition card 2. The micro-speaker 4 includes two electro-acoustic transducers that respectively generate stimulation sounds and suppression sounds, which are used to induce SFOAEs and DPOAEs signals. The two electro-acoustic transducers are inserted into the earplug through two sound tubes, and the input ends of the two electro-acoustic transducers are respectively connected to the headphone amplifier 3 through interfaces. The micro-speaker 4 is used to electroacoustically convert the analog voltage signal into an acoustic signal, which is sent to the subject's ear through the earplug. The micro-speaker 4 can adopt various products that can meet the performance indicators, such as plug-in micro-speakers, etc., which are not limited here.

[0065] The signal acquisition structure is used to collect otoacoustic emission signals and other signals from the external auditory canal of the human ear. The signal acquisition structure includes a miniature microphone 5 and a microphone amplifier 6 connected in sequence. To isolate the sound in the subject's external auditory canal from external sounds, in this embodiment, the miniature speaker 4 and the miniature microphone 5 can be inserted into the same soft earplug. The miniature microphone 5 includes an acoustic-electric transducer for collecting otoacoustic emission signals and other signals from the external auditory canal of the human ear and converting the collected acoustic signals into electrical signals. The input of the miniature microphone 5 is inserted into the earplug via an acoustic tube. The sound signal in the ear canal passes through the acoustic-electric transducer, where it is converted into an analog voltage signal. The output of the miniature microphone 5 is connected to the input of the microphone amplifier 6, which is then connected to the A / D input of the acquisition card 2. The miniature microphone 5 can be a variety of products that meet performance requirements, such as plug-in miniature microphones. The microphone amplifier 6 is used to amplify the signal output by the miniature microphone 5. The amplification factor can be adjusted according to actual needs, including but not limited to: 0dB, 20dB, and 40dB.

[0066] In this embodiment, an acquisition card driving system may also be provided in the computer 1. The acquisition card driving system is used to drive the D / A port of the acquisition card 2 to receive the signal sent by the computer 1, and after power amplification and impedance matching by the headphone amplifier 3, the signal is sent to the subject's ear through the micro speaker 4. At the same time, the A / D port of the acquisition card 2 receives the signal sent back by the microphone amplifier 6 and sends it to the hearing threshold analysis and prediction system.

[0067] See also Figure 3 As shown, the signal analysis system is used to perform computational analysis on the signal collected from the subject's ear canal to extract the detection information of the target SFOAEs or DPOAEs. Specifically, it includes a fine structure detection system that extracts multi-frequency information and an I / O function detection system that extracts multi-test intensity information.

[0068] The specific process of fine structure detection is as follows: personalized detection parameters are pre-set according to the detection requirements, and then the acquisition transmission system outputs and collects the acquisition signal under the preset stimulation frequency range and specified test intensity, and obtains the fine structure spectrum information of SFOAEs or DPOAEs through the fine structure detection module, draws it on the software interface and saves the test results.

[0069] The specific process of I / O function detection is as follows: personalized detection parameters are pre-set according to the detection requirements, and then the transmission system output is collected and the acquisition signal is collected under the preset stimulation intensity range and specified test frequency. The fine structure spectrum information of SFOAEs or DPOAEs is obtained through the I / O function detection module, which is then plotted on the software interface and the test results are saved.

[0070] In this embodiment, Figure 4 The detailed module division diagram of the instrument when performing fine structure detection is displayed, including: fine structure test parameter setting module, fine structure test sound signal generation module, fine structure test sound signal stimulation module, fine structure test sound signal acquisition module, fine structure signal calculation and analysis module, fine structure waveform display module, fine structure waveform data storage module and fine structure report generation module.

[0071] The fine structure test parameter setting module is used to customize the test parameters required to induce multi-frequency SFOAEs or DPOAEs based on user needs. These parameters include the upper and lower frequency ranges of the sweep, the test intensity of the sweep tone, the sweep duration, and the number of sweeps averaged. The fine structure test sound signal generation module generates the test sound signals required to induce SFOAEs and DPOAEs, respectively, based on pre-set test parameters. The fine structure test sound signal stimulation module transmits stimulus sounds to the generated test sound signals. The fine structure test sound signal acquisition module simultaneously records the echo sound signals in the external auditory canal while the stimulation module emits stimulus sounds. The fine structure signal analysis and calculation module extracts the fine structure information of SFOAEs or DPOAEs from the recorded external auditory canal signals. The specific process involves coherent averaging and denoising the repeatedly acquired time-domain signals. After time-frequency analysis and filtering, the denoised and coherently averaged signals are subjected to multi-frequency OAE spectra, i.e., fine structure information. Fine structure information describes the relationship between frequency and induced amplitude in OAEs. Therefore, the final information presented is the relationship curve between the induced amplitude and background noise of SFOAEs or DPOAEs and the test frequency at a specified test frequency range and test intensity.

[0072] In this embodiment, the fine structure waveform display module, the data saving module, and the report generating module are respectively used to plot the measured fine structure information, save the corresponding data to a file, and generate a corresponding report.

[0073] Specifically, Figure 5 The detailed module division diagram of the instrument when performing I / O function detection is displayed, including: I / O function test parameter setting module, I / O function test acoustic signal generation module, I / O function test acoustic signal stimulation module, I / O function test acoustic signal acquisition module, I / O function signal calculation and analysis module, I / O function waveform display module, I / O function waveform data storage module and I / O function report generation module.

[0074] Among them, the I / O function test parameter setting module is used to customize the test parameters required to induce SFOAEs or DPOAEs signals with multiple test intensities of specified frequencies according to user needs. The configurable parameters include the upper and lower limits and growth step size of the test intensity, the test frequency of pure tones, and the number of superimposed averages. The I / O function test sound signal generation module is used to generate the test sound signals required to induce SFOAEs and DPOAEs respectively according to the pre-built-in test parameters. The I / O function test sound signal stimulation module is used to send stimulation sounds to the generated test sound signals. The I / O function test sound signal acquisition module is used to record the echo sound signal in the external auditory canal while the stimulation module emits stimulation sounds.

[0075] In this embodiment, the I / O function signal analysis and calculation module is used to calculate and extract the I / O function information of SFOAEs or DPOAEs from recorded external auditory canal signals. The specific process involves coherent averaging and noise removal of the time-domain signals acquired repeatedly at each test intensity, according to the order of multiple test intensities. After spectral analysis and filtering of the de-noised and coherently averaged signals, the OAE growth function information induced by the multiple test intensities at a specified frequency, i.e., the I / O function (Input-Output Function) information, can be obtained. The I / O function information describes the relationship between the test intensity and the induced amplitude of single-frequency OAEs. The final information presented is a curve showing the relationship between the induced amplitude and the background noise of SFOAEs or DPOAEs and the test intensity at the specified test frequency. The I / O function waveform display module, data storage module, and report generation module are respectively used to plot the measured I / O function information, save the corresponding data to a file, and generate a corresponding report.

[0076] In summary, the present invention provides a comprehensive research otoacoustic emissions instrument with customizable, multi-parameter rapid detection capabilities for SFOAEs and DPOAEs, including fine structure detection in the frequency dimension and I / O function detection in the intensity dimension. The instrument's test results are highly reliable and applicable to diverse scenarios involving otoacoustic emissions research and applications.

[0077] The otoacoustic emission signal detection method provided by the present invention is described below. The otoacoustic emission signal detection method described below and the otoacoustic emission signal detection system described above can be referenced to each other.

[0078] like Figure 6 As shown, in one embodiment, a method for detecting otoacoustic emission signals includes the following steps:

[0079] Step S610 : Detecting multi-frequency point fine structure information and multi-test intensity point information of the SFOAEs signal and the DPOAEs signal through a fine structure detection mechanism and an I / O function detection mechanism.

[0080] Step S620 , sending different test sound signals to the subject's ear canal based on the multi-frequency point fine structure information and the multi-test intensity point information to obtain ear canal signals, where the ear canal signals include swept frequency test signals and pure tone test signals.

[0081] Step S630: Receive a frequency sweep test signal according to a specified intensity and frequency range, and calculate the SFOAEs signal and DPOAEs signal of each frequency from the ear canal signal through time-frequency analysis to obtain fine structure information of the SFOAEs signal and the DPOAEs signal.

[0082] Step S640 : Receive a pure tone test signal within a specified frequency and intensity range, calculate SFOAEs signals and DPOAEs signals of various intensities from the pure tone test signal through spectrum analysis, and obtain I / O function information of the SFOAEs signals and DPOAEs signals.

[0083] Figure 7 The following is a schematic diagram of the physical structure of an electronic device. The electronic device may be a smart terminal, and its internal structure diagram may be as follows: Figure 7 As shown. The electronic device includes a processor, internal memory, and a network interface connected via a system bus. The processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The network interface of the electronic device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, it implements an otoacoustic emission signal detection method, which includes:

[0084] The multi-frequency point fine structure information and multi-test intensity point information of SFOAEs signals and DPOAEs signals are detected through the fine structure detection mechanism and the I / O function detection mechanism.

[0085] Based on the multi-frequency fine structure information and the multi-test intensity point information, different test sound signals are sent to the subject's ear canal to obtain ear canal signals, which include swept frequency test signals and pure tone test signals.

[0086] The swept frequency test signal is received according to the specified intensity and frequency range, and the SFOAEs signal and DPOAEs signal of each frequency are calculated from the ear canal signal through time-frequency analysis to obtain the fine structure information of the SFOAEs signal and DPOAEs signal.

[0087] A pure tone test signal is received within a specified frequency and intensity range, and SFOAEs signals and DPOAEs signals of various intensities are calculated from the pure tone test signal through spectrum analysis to obtain I / O function information of the SFOAEs signals and the DPOAEs signals.

[0088] Those skilled in the art will understand that Figure 7 The structure shown in the figure is merely a block diagram of a portion of the structure related to the solution of the present invention, and does not constitute a limitation on the electronic device to which the solution of the present invention is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0089] In another aspect, the present invention further provides a computer storage medium storing a computer program, which, when executed by a processor, implements a method for detecting otoacoustic emission signals, the method comprising:

[0090] The multi-frequency point fine structure information and multi-test intensity point information of SFOAEs signals and DPOAEs signals are detected through the fine structure detection mechanism and the I / O function detection mechanism.

[0091] Based on the multi-frequency fine structure information and the multi-test intensity point information, different test sound signals are sent to the subject's ear canal to obtain ear canal signals, which include swept frequency test signals and pure tone test signals.

[0092] The swept frequency test signal is received according to the specified intensity and frequency range, and the SFOAEs signal and DPOAEs signal of each frequency are calculated from the ear canal signal through time-frequency analysis to obtain the fine structure information of the SFOAEs signal and DPOAEs signal.

[0093] A pure tone test signal is received within a specified frequency and intensity range, and SFOAEs signals and DPOAEs signals of various intensities are calculated from the pure tone test signal through spectrum analysis to obtain I / O function information of the SFOAEs signals and the DPOAEs signals.

[0094] In yet another aspect, a computer program product or computer program is provided, the computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium, and when the processor executes the computer instructions, implements a method for detecting otoacoustic emission signals, the method comprising:

[0095] The multi-frequency point fine structure information and multi-test intensity point information of SFOAEs signals and DPOAEs signals are detected through the fine structure detection mechanism and the I / O function detection mechanism.

[0096] Based on the multi-frequency fine structure information and the multi-test intensity point information, different test sound signals are sent to the subject's ear canal to obtain ear canal signals, which include swept frequency test signals and pure tone test signals.

[0097] The swept frequency test signal is received according to the specified intensity and frequency range, and the SFOAEs signal and DPOAEs signal of each frequency are calculated from the ear canal signal through time-frequency analysis to obtain the fine structure information of the SFOAEs signal and DPOAEs signal.

[0098] A pure tone test signal is received within a specified frequency and intensity range, and SFOAEs signals and DPOAEs signals of various intensities are calculated from the pure tone test signal through spectrum analysis to obtain I / O function information of the SFOAEs signals and the DPOAEs signals.

[0099] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory.

[0100] By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0101] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An otoacoustic emission signal detection system, characterized in that: The system comprises: An acquisition and transmission module, configured to transmit stimulation signals and acquire ear canal signals; A fine structure detection mechanism, comprising a DPOAEs fine structure detection module and an SFOAEs fine structure detection module, each configured to extract fine structure information of otoacoustic emissions from the ear canal signal; The I / O function detection mechanism includes a DPOAEs I / O function detection module and an SFOAEs I / O function detection module, each of which is used to extract I / O function information of otoacoustic emissions from the ear canal signal.

2. The otoacoustic emission signal detection system according to claim 1, characterized in that: The acquisition and transmission module includes a stimulation signal sending structure and a signal collection structure; The stimulation signal sending structure is composed of an interconnected headphone amplifier and a micro speaker; The signal acquisition structure is composed of interconnected miniature microphones and microphone amplifiers.

3. The otoacoustic emission signal detection system according to claim 2, characterized in that: The headphone amplifier is connected to the output end of the signal conversion structure. The micro speaker includes a first electroacoustic transducer for transmitting stimulation sound and a second electroacoustic transducer for transmitting suppression sound, and is used to induce DPOAEs signals and SFOAEs signals.

4. The otoacoustic emission signal detection system according to claim 3, characterized in that: The first electroacoustic transducer and the second electroacoustic transducer are both inserted into the earplug through two sound tubes, and the input ends of the first electroacoustic transducer and the second electroacoustic transducer are both connected to the headphone amplifier through a TRS interface; The micro speaker is used to perform electroacoustic conversion on the analog voltage signal, and transmit the converted acoustic signal to the ear of the subject through the earplug.

5. The otoacoustic emission signal detection system according to claim 4, characterized in that: The miniature microphone has an acoustic-electric transducer, and the acoustic-electric transducer is used to convert an acoustic signal into an electrical signal; The input end of the miniature microphone is inserted into the earplug through a transmission sound tube, and the output end of the miniature microphone is connected to the input end of the microphone amplifier, and the output end of the microphone amplifier is connected to the input end of the signal conversion structure.

6. The otoacoustic emission signal detection system according to claim 1, characterized in that: The fine structure detection mechanism further includes a first test sound parameter setting module, a first test sound signal generating module and a first test sound signal stimulating module; The first test sound parameter setting module is used to set fine structure detection parameters according to the input test parameters; The first test sound signal generating module is used to generate a corresponding first digital test sound according to the fine structure detection parameter; The first test sound signal stimulation module is used to emit the first digital test sound generated by the first test sound signal generation module.

7. The otoacoustic emission signal detection system according to claim 6, characterized in that: The I / O function detection mechanism further includes a second test sound parameter setting module, a second test sound signal generating module, and a second test sound signal stimulating module; The second test sound parameter setting module is used to set the I / O function detection parameters according to the input test parameters; The second test sound signal generating module is used to generate a corresponding second digital test sound according to the I / O function detection parameter; The second test sound signal stimulation module is used to emit the second digital test sound generated by the second test sound signal generation module.

8. A method for detecting otoacoustic emission signals, characterized in that: The method is implemented by the otoacoustic emission signal detection system according to any one of claims 1 to 7, comprising: The multi-frequency point fine structure information and multi-test intensity point information of SFOAEs and DPOAEs signals are detected by the fine structure detection mechanism and the I / O function detection mechanism; Sending different test sound signals to the subject's ear canal based on the multi-frequency point fine structure information and the multi-test intensity point information to obtain ear canal signals, wherein the ear canal signals include swept frequency test signals and pure tone test signals; receiving the swept frequency test signal according to a specified intensity and frequency range, and calculating the SFOAEs signal and the DPOAEs signal of each frequency from the ear canal signal through time-frequency analysis to obtain fine structure information of the SFOAEs signal and the DPOAEs signal; and The pure tone test signal is received according to a specified frequency and intensity range, and SFOAEs signals and DPOAEs signals of various intensities are calculated from the pure tone test signal through spectrum analysis to obtain I / O function information of the SFOAEs signal and the DPOAEs signal.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the otoacoustic emission signal detection method according to claim 8 are implemented.

10. A computer storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the otoacoustic emission signal detection method according to claim 8 are implemented.

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