41 results about "Otoacoustic emission" patented technology

A system for monitoring auditory health of a user can include an auricular device that can comprise a microphone configured to generate OAE audio data responsive to detecting one or more otoacoustic emissions originating from the inner ear of the user. One or more hardware processors associated with the auricular device can access the OAE audio data from the microphone; access physiological data of the user originating from a physiological sensor; determine a feature of the physiological data in a time-domain, the feature comprising a value of the physiological data exceeding a threshold; adjust a portion of the OAE audio data based on the feature of the physiological data, the portion of the OAE audio data corresponding to the feature of the physiological data in the time-domain; and determine one or more physiological characteristics of the user based on the OAE audio data.

The invention relates to a method for predicting cochlear hearing loss based on pure tone induced SFOAE, which comprises the following steps of: extracting a stimulation frequency otoacoustic emission signal through a six-section stimulation signal normal form to obtain a stimulation sound playing sequence diagram in single stimulation frequency otoacoustic emission signal acquisition, and extracting a time domain residual signal; and low-frequency background noise in the time domain residual signals is removed through a zero phase shift high-pass filter with cut-off frequency. And performing stack average processing on the plurality of filtered time-domain signals, and storing the time-domain signals in an odd-order buffer area and an even-order buffer area one by one according to an odd-even order. The method comprises the following steps: performing dimension reduction feature extraction on a single stimulation frequency otoacoustic emission signal through principal component analysis, training a machine learning algorithm based on principal component features, and constructing a hearing loss prediction model; and calling the hearing loss prediction model to compare the feature input with the representation of the single stimulation frequency otoacoustic emission signal without dimension reduction in the original data space, and quantitatively predicting the cochlea hearing loss threshold.

A loudspeaker system and method can measure a specific user's hearing and implement compensatory or corrective processing to address the user's hearing deficiencies. The user's hearing acuity may be determined by (i) headphone techniques in which frequency-based hearing thresholds are determined; (ii) a loudspeaker system set up as intended for use in an acoustic space to emit tonal stimuli; or (iii) inducing, acquiring, and interpreting otoacoustic emissions. Once the hearing profile is determined, appropriate signal processing parameters can be used to generate a corrected audio output signal adjustment. The administered hearing test results can include a plurality of hearing loudness threshold levels at respective test frequencies. The hearing correction system's corrected audio output can be generated from corrected loudness values at selected correction frequency sub-bands.

The present invention relates to an otoacoustic emission signal detection method, device, electronic device and storage medium. The method comprises: obtaining otoacoustic emission signals at multiple frequencies in a single frequency sweep test by exponential frequency sweep. An online whole-segment signal artifact removal algorithm is called to perform artifact removal on the distortion product otoacoustic emission signal and the stimulation frequency otoacoustic emission signal respectively, and the distortion product otoacoustic emission signal and the stimulation frequency otoacoustic emission signal after artifact removal are respectively subjected to filtering tracking and two-tone suppression superposition to obtain a re-collected signal. An offline segmented signal artifact removal algorithm is called to perform artifact removal on the re-collected signal, and the re-collected signal processed by the offline segmented signal artifact removal algorithm is subjected to segmented signal stacking averaging operation and filtering tracking to extract the re-collected signal of the stimulation frequency otoacoustic emission signal. The re-collected signal is processed by FFT operation to obtain an amplitude signal and a phase signal corresponding to the otoacoustic emission signal with high frequency resolution.

The invention relates to the technical field of crossing of medical instruments and artificial intelligence, and provides a hearing threshold detection method based on multi-mode hearing electrophysiological signal fusion. Comprising stimulation frequency otoacoustic emission and auditory brainstem response induced by sweep frequency stimulation sound, distortion product otoacoustic emission induced by dual-tone stimulation and middle ear sound immittance / reflection signals, and a multi-task deep learning model is constructed to perform fusion analysis on the signals. According to the method, accurate quantitative regression prediction of hearing thresholds with any frequency resolution and automatic classification and discrimination of hearing loss properties are synchronously realized, the problems of single evaluation dimension and insufficient complex hearing loss analysis ability in the prior art are effectively solved, the comprehensiveness, accuracy and clinical operation efficiency of objective hearing evaluation are remarkably improved, and the method is suitable for popularization and application. And an innovative system solution is provided for fine diagnosis of the auditory function.

To predict whether there is no sound in a predetermined space based upon whether onomatopoeia indicative of silence that a human perceives in a quiet environment is generated.SOLUTION: A determination device comprises: an input part which inputs predetermined sound data generated by converting a predetermined sound into numeric data through frequency analysis to a determination model outputting whether a specific frequency of 1,800 Hz or more to 2,200 Hz or less indicative of induced otoacoustic emissions is included in addition to the frequency of sound data once the sound data is input; and a control part which displays, on a display unit, the generation of onomatopoeia indicative of silence that a human perceives in a quiet environment when the determination model receiving the predetermined sound data generates an output showing that the specified frequency is detected, but displays, on the display unit, no generation of onomatopoeia when the determination model generates an output showing no detection of the specific frequency.SELECTED DRAWING: Figure 1

A loudspeaker system and method can measure a specific user's hearing and implement compensatory or corrective processing to address the user's hearing deficiencies. The user's hearing acuity may be determined by (i) headphone techniques in which frequency-based hearing thresholds are determined; (ii) a loudspeaker system set up as intended for use in an acoustic space to emit tonal stimuli; or (iii) inducing, acquiring, and interpreting otoacoustic emissions. Once the hearing profile is determined, appropriate signal processing parameters can be used to generate a corrected audio output signal adjustment. The administered hearing test results can include a plurality of hearing loudness threshold levels at respective test frequencies. The hearing correction system's corrected audio output can be generated from corrected loudness values at selected correction frequency sub-bands.

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.

The invention relates to the technical field of health data processing, in particular to an intelligent health data processing method and device and a storage medium, and the method comprises the steps: collecting the pure tone hearing threshold of a user under a standard frequency table, constructing a pure tone audiometry map of the user, extracting the hearing threshold features of the user, constructing the hearing sensitive state index of the user, and obtaining the hearing sensitive state index of the user; then determining a basic hearing state of the user; collecting health data of the user in real time; calibrating an otoacoustic emission amplitude and an ABR wave V amplitude of the user; constructing a peripheral-central function coupling index of the user; and constructing an occult hearing loss model based on the peripheral-central function coupling index and the hearing processing disorder index of the user so as to output the occult hearing loss state of the user, and performing hearing health early warning on the user by integrating the occult hearing loss state of the user and the basic hearing state. According to the invention, the efficiency of health data processing is effectively improved.

First audio content at a first frequency is output alternately with second audio content at a second frequency different from the first. An audio signal indicating otoacoustic emission is received in response. The first and second audio content may be pure tones, and may be non-overlapping in time separated by gaps less than 100 ms. The second frequency may be 1.15-1.3 times the first. A microphone 330 may receive an input indication distortion product otoacoustic emissions. The audio content may be output by a single loudspeaker 325. The health of the subject’s ear may be determined. Further audio content may be determined and output.

The invention relates to the technical field of noise deafness susceptibility grading, in particular to a noise deafness susceptibility grading method and system based on a multi-band hearing threshold, and the method comprises the steps: presetting measurement frequency points, generating a measurement frequency point set according to a sequence from high frequency to low frequency, and completing M times of independent measurement for each frequency point; recording a tested subjective response timestamp, and generating a confidence value label; an otoacoustic emission signal in a tested ear canal is collected in real time, a time domain signal with the highest confidence coefficient of a single frequency point is extracted, spectrum features are calculated, and otoacoustic emission joint parameters are constructed. According to the method, the time sequence diffusion rule from high frequency to low and medium frequency hair cell damage can be comprehensively captured, the identification accuracy of potential auditory impairment is remarkably improved, the propagation mechanism from high frequency damage to intermediate frequency can be simulated by constructing the physically constrained spectrum migration operator, and otoacoustic emission time domain-frequency domain joint parameters and physiological indexes are combined, so that the identification accuracy of the potential auditory impairment is improved. And individualized and dynamic injury risk prediction is realized.

The invention relates to an ear sound production instrument, a detection method, a medium and computer equipment, and the instrument comprises an ear canal detection probe which is suitable for being inserted into an ear canal of a tested object and forms sealing fit with the wall of the ear canal, and the ear canal detection probe comprises an acoustic output unit which transmits an audio signal to the ear canal, the acoustic input unit is used for receiving a reflected wave of the audio signal in an ear canal; the sound insulation cover is arranged outside the auditory meatus detection probe in a sleeving mode and covers the auditory meatus detection probe and an auditory meatus opening so as to weaken noise and improve the signal-to-noise ratio of reflected waves, otoacoustic emission detection can be carried out without depending on a special sound insulation room environment, and the accuracy and clinical applicability of a detection result are guaranteed.

Photoplethysmography (PPG) data (12, Fig. 1) of a user are received from a PPG sensor in a ear-worn device. Otoacoustic emission (OAE) data (14, Fig. 1) are received from a microphone in the ear-worn

The present disclosure describes systems and methods to evaluate auditory efferent function by exposing a patient to short-duration acoustic click stimuli to generate a click-evoked otoacoustic emission (CEOAE) occurring in each ear of the patient, and in response to exposing the patient to click stimuli, concurrently sampling outer hair cell activity (OHC) and medial olivocochlear reflex (MOCR; efferents) in each ear of the patient, monitoring the middle ear muscle reflex (MEMR) in each ear of the patient, and measuring a change in cochlear activity in the patient based on the CEOAE, MOOR, and MEMR of each ear of the patient.

An assembly 100 to provide thermal therapy to a human auditory system includes a thermal transducer 125, a stimulus transducer 120, 135, a receiver 130, and a processing device 145. Some or all of the individual components may be carried in headwear. The thermal transducer 125 applies hypothermic temperature conditions to an area of the head near an ear. The stimulus transducer 120, 135 applies a stimulus signal, and the receiver 130 detects otoacoustic emission (OAE) responsive to the stimulus signal. The processor 145 compares the received OAE signal to a reference. Discrepancy between the OAE and reference is used in a feedback loop to control operation of the system 100.

An electronic apparatus is provided. The electronic apparatus includes a speaker, a first microphone, a second microphone, memory storing one or more computer programs, and one or more processors communicatively coupled to the speaker, the first microphone, the second microphone, and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the electronic apparatus to control an external speaker to output sound of a first frequency, obtain a first sound signal corresponding to the sound of the first frequency through the first microphone, and obtain a second sound signal including the first sound signal through the second microphone, obtain a first noise cancelling signal based on the first sound signal and the second sound signal, output a second noise cancelling signal in which at least one of a phase or a gain of the first noise cancelling signal is changed and a third sound signal of a second frequency through the speaker, obtain the second sound signal by changing at least one of the phase or the gain, and identify at least one of a target phase or a target gain based on a third frequency component related to distortion product otoacoustic emissions (DPOAE) of the first frequency and the second frequency included in the second sound signal.

1. The name of the product of this design: Otoacoustic emission detector. 2. Purpose of the product of this design: used for otoacoustic emission detection, hearing threshold detection and hearing screening of the human ear. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: main view.

The invention discloses an otoacoustic emission instrument probe which is characterized by comprising a probe body, a first shell and a second shell, the first shell is a cylinder, the middle of the first shell is of a hollow structure provided with at least one through hole, one end of the hollow structure and the outer wall of the first shell form a first cavity, the first cavity is connected with the probe body, the other end of the hollow structure and the outer wall of the first shell form a second cavity, and the second cavity is connected with the second shell. An annular groove is formed in the inner wall of the upper end of the second shell. According to the otoacoustic emission instrument probe, a through hole of a first shell provides a fixed installation position for a loudspeaker and a microphone, an annular groove of a second shell provides a fixed installation position for a circuit board, the circuit board and the loudspeaker are connected with the circuit board through a fixed-length wire, internal crosstalk is effectively restrained, a physical isolation barrier is formed by the hole wall of the first shell, and the sound emission effect is improved. And the accuracy of acoustic immittance measurement and pure tone threshold judgment is further ensured.

According to various, but not necessarily all, examples there is provided an apparatus comprising: means for causing alternating output of a first audio content and a second audio content, the first audio content comprising a first frequency and the second audio content comprising a different second frequency; and means for receiving, responsive to output of the first audio content and the second audio content, an audio signal indicative of otoacoustic emissions.

1. The name of the design product: ear sound emission instrument probe. 2. The use of the design product: for monitoring and diagnosis of hearing. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention relates to a hearing detection system and method based on a hearing state and a hearing threshold, and belongs to the technical field of hearing system detection, 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 DPOAEs fine structure information and SFOAEs fine structure information of otoacoustic emission from the auditory meatus signal. The hearing detection analysis and prediction mechanism comprises a hearing threshold detection module and a hearing state screening module which are respectively used for acquiring DPOAEs fine structure information and SFOAEs fine structure information of multiple frequency points and multiple test intensities through the fine structure detection mechanism, constructing an input feature matrix, and screening the hearing threshold detection module and the hearing state screening module; and calling a pre-trained deep learning model to predict hearing thresholds and hearing screening under different frequencies according to the input feature matrix.

The invention discloses a wireless otoacoustic emission detection system, which adopts a highly integrated circuit and a small packaging chip to realize circuit miniaturization in order to reduce adverse effects caused by a lead wire connected between a host and a detection probe of an existing commercial otoacoustic emission detection system. In the hardware circuit implementation, only two main chips, namely a main control chip and an audio coding and decoding chip, are adopted to realize the circuit with the functions. A chip which is small in packaging size, high in signal processing capacity and low in power consumption and integrates a radio-frequency transmitting circuit and a radio-frequency receiving circuit is selected in a main control chip. The coding and decoding chip is a chip which is small in packaging size, low in circuit noise, multi-channel in input, programmable in input signal amplification factor, multi-channel in audio power amplifier output and integrated with an analog-to-digital conversion circuit and a digital-to-analog conversion circuit. And the output of the microphone is simultaneously connected to the multi-channel input of the coding and decoding chip, and corresponding processing is carried out on software and algorithms, so that the overall dynamic range of the system is improved.

The application discloses an otoacoustic emission signal detection system and method, and belongs to the technical field of hearing function detection. The system adopts a modular architecture and comprises a signal emission module, a signal receiving module, a core processing module, an intelligent interaction module and a low-power supply module. The modules are interconnected through an SPI bus. The method can realize high-precision extraction and analysis of otoacoustic emission signals through a dynamic noise source classification and inhibition algorithm combined with a space-time multi-scale feature fusion network. The application can solve the problems of poor portability, weak anti-interference ability, simple signal preprocessing, complex operation and insufficient endurance of existing devices, realize integrated design of 'high-precision detection + convenient operation + long endurance', and meet the needs of primary medical treatment, family health monitoring and outdoor emergency scenes.

The application provides an optimized ear sound reflection signal detection method, aiming at improving the accuracy of quality analysis and abnormal identification of ear sound signals, and mainly comprises the following steps: TE noise threshold optimization, artifact elimination, similarity calculation, wavelet denoising and DP data processing, etc., wherein the self-adaptive threshold control is used to dynamically adjust the noise threshold, thereby enhancing the reliability of the signal; the T-shaped window and the band-pass filtering technology are used to effectively filter the noise and improve the signal-to-noise ratio; the frequency domain coherence spectrum method and the wavelet denoising further strengthen the signal matching degree and stability; and the continuous sound processing and the small cavity identification strategy ensure the data integrity and accurately distinguish the influence of different environments and earplug states.

An ear probe for measuring otoacoustic emissions, containing a. at least one microphone for measuring OAEs in the ear canal, designed as a non-magnetic electroacoustic transducer b. at least one sound source, designed as a non-magnetic electroacoustic transducer

The invention discloses a broadband middle ear impedance and otoacoustic emission combined hearing threshold prediction method and a broadband middle ear impedance and otoacoustic emission combined hearing threshold prediction system. The method comprises the following steps: determining a detection mode and initializing detection parameters; auditory meatus sealing and environmental noise self-inspection, broadband middle ear impedance detection and otoacoustic emission detection are sequentially executed, and broadband middle ear impedance related features and otoacoustic emission related features are extracted respectively; fusing the two types of features to construct a joint feature, inputting the joint feature into a hearing prediction model, outputting a hearing threshold prediction value or a hearing condition evaluation result, and generating a detection report; according to the system, a modular architecture of a core control and acquisition unit and an air pressure adjusting unit is adopted, and core hardware is reused to realize one-stop detection of middle ear and inner ear functions; according to the method, the middle ear conduction characteristic and the inner ear active function are jointly modeled, key links of an auditory pathway are comprehensively covered, the accuracy of hearing threshold prediction is improved, the detection process is automatic, subjective cooperation of a subject is not needed, and the clinical adaptability is high.

A sound-generating device for a probe for measuring otoacoustic emissions or for a hearing aid is disclosed, comprising a sound-generating module (12) designed to be inserted into a human ear canal (14). The sound-generating module (12) has at least one first sound transmitter (20) that emits a first sound field (24) distally, which exhibits a first sound pressure that is location-dependent. When inserted into the ear canal (14), the sound-generating module (12) is not airtight with respect to the ear canal (14), so that a reflected portion (27) of the first sound field (24) can penetrate into a proximal far field (46) and generate a first far-field sound pressure there.The sound generation module (12) has at least one second sound transmitter (38) which emits a second sound field (40) which has a second sound pressure that is dependent on location and generates a second far-field sound pressure in the proximal far field (46), wherein the second sound field (40) is adjusted such that in the proximal far field (46) the second far-field sound pressure is essentially the same as the first far-field sound pressure, but out of phase with it, so that in the proximal far field (46) the reflected part (27) of the first sound field (24) generated by the first sound transmitter (20) and the second sound field (40) largely cancel each other out.

This invention discloses a method for measuring bone conduction hearing thresholds by exciting the forehead with a bone resonator. The method includes: inserting probe-type microphones into both ear canals of the subject and wearing sound-insulating headphones at the entrances of both ear canals; applying bone conduction excitation to the subject's forehead and measuring the sound pressure levels of transient response otoacoustic emissions (OAEs) bilaterally; and obtaining the bilateral mastoid bone conduction thresholds of the subject based on a pre-established correlation database between transient response OAEs and mastoid bone conduction hearing thresholds. Compared with the bone conduction hearing threshold testing procedures specified by international standards, the method of this invention has a shorter measurement time and higher efficiency, provides data support for inferring subjective bone conduction hearing thresholds from objective physiological signals, and is particularly suitable for bone conduction hearing threshold testing in children.

The invention relates to a DPOAE otoacoustic emission testing method, electronic equipment and a medium, and the method comprises the steps: providing sounders, and outputting a dual-frequency stimulation sound signal to each sounder through a USB sound card; double-frequency stimulation sound is sent to the auditory meatus of the subject, the frequency ratio f2: f1 is 1.20-1.25, and each sounder sends out stimulation sound with the specific frequency; receiving an otoacoustic emission signal reflected back from the auditory meatus by using a sound receiver; inputting the signal into a preprocessing circuit for preprocessing; converting the preprocessed signal into a digital signal through an A / D converter, and transmitting the digital signal to a PC; collecting signals for multiple times in the PC and calculating an average value; performing Fourier transform on the averaged time domain signal to obtain a frequency spectrum; extracting frequency components of the stimulation sound and the otoacoustic emission signal from the frequency spectrum, and determining the intensity of the otoacoustic emission signal; the otoacoustic emission signal strength is compared to the noise level to generate a DPOAE audiogram. According to the method, the test accuracy and efficiency are improved, and the operation is simplified.

A system is provided for processing of a bilaterally differentiated otoacoustic signal, recovering it in the presence of common mode acoustic noise. A pattern recognition module is provided with reference data to recognise known patterns in audio data received. Based on the recognition of particular sound data, the system may control an actuator. By training a user to exhibit particular behaviour that triggers particular otoacoustic sounds with particular patterns, and by building a proper reference database, the user may be able to control the actuator by means of the behaviour, via otoacoustic emissions by the ears of the user. The reference database may be a conventional database, but also a neural network or other artificial intelligence.