CN117560612A

CN117560612A - Method and system for evaluating hearing threshold after hearing assistance of bone conduction hearing aid

Info

Publication number: CN117560612A
Application number: CN202210944035.5A
Authority: CN
Inventors: 闫冰岩; 廖风云; 齐心
Original assignee: Shenzhen Voxtech Co Ltd
Current assignee: Shenzhen Voxtech Co Ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2024-02-13

Abstract

One or more embodiments of the present specification relate to a hearing threshold assessment method and system after hearing assistance by a bone conduction hearing aid, the hearing threshold assessment method comprising obtaining a bone conduction hearing threshold of a user; acquiring a bone conduction component input-output curve of the bone conduction hearing aid; and determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid according to the bone conduction hearing threshold of the user and the bone conduction component input-output curve of the bone conduction hearing aid. According to the hearing threshold assessment method provided by the embodiment of the specification, under the conditions of a store and a remote service provider without testing conditions, the hearing threshold of a user after hearing assistance of a bone conduction hearing aid can be conveniently determined without strict testing environments and testing equipment, and the convenience and the rapidity for determining the hearing threshold of the user after hearing assistance of the bone conduction hearing aid are improved.

Description

Method and system for evaluating hearing threshold after hearing assistance of bone conduction hearing aid

Technical Field

The application relates to the technical field of hearing aids, in particular to a hearing threshold evaluation method and a system after hearing assistance of a bone conduction hearing aid.

Background

With the development of science and technology, the appearance of hearing aids provides possibility for hearing impaired people to hear sound. By using the hearing aid, the hearing-impaired person can lower the hearing threshold, and by acquiring the hearing threshold after hearing assistance, the hearing-impaired person can be judged on the hearing-aid effect of the hearing aid. The bone conduction hearing aid has a complex sound transmission principle, and a strict test environment and test equipment are required for acquiring the hearing threshold after hearing aid, so that challenges are brought to acquiring the hearing threshold after hearing aid.

It is therefore desirable to provide a method of threshold assessment after hearing by a bone conduction hearing aid to improve the accuracy and rapidity of determining the threshold after hearing by the bone conduction hearing aid.

Disclosure of Invention

One of the embodiments of the present disclosure provides a method for evaluation of hearing threshold after hearing assistance by a bone conduction hearing aid, comprising obtaining a bone conduction hearing threshold of a user; acquiring a bone conduction component input-output curve of the bone conduction hearing aid; and determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid according to the bone conduction hearing threshold of the user and the bone conduction component input-output curve of the bone conduction hearing aid.

One of the embodiments of the present specification also provides a hearing threshold evaluation system after hearing assistance by a bone conduction hearing aid, the system comprising: a bone conduction component acquisition module configured to acquire a bone conduction hearing threshold of a user and a bone conduction component input-output curve of the bone conduction hearing aid; and a processing module configured to determine a hearing threshold of the user after hearing aid by the bone conduction hearing aid based on the bone conduction hearing threshold of the user and a bone conduction component input-output curve of the bone conduction hearing aid.

The hearing threshold evaluation method and system after hearing assistance of the bone conduction hearing aid provided by the specification have the following beneficial effects:

(1) According to the hearing threshold evaluation method after hearing assistance by the bone conduction hearing aid, the hearing threshold of the user after hearing assistance by the bone conduction hearing aid can be determined by acquiring the bone conduction hearing threshold of the user and the bone conduction component input-output curve of the bone conduction hearing aid, so that the hearing threshold of the user after hearing assistance by the bone conduction hearing aid can be conveniently determined under the conditions of a store and a remote service provider without testing conditions and without strict testing environment and testing equipment, and the convenience and the rapidity for determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid are improved; (2) In the hearing threshold evaluation method after hearing assistance by the bone conduction hearing aid, the transmission effect of the user when the bone conduction hearing aid is worn by the ears is considered, and the accuracy of the hearing threshold of the user after hearing assistance by the bone conduction hearing aid is improved by acquiring and correcting the bone conduction output curve of the left ear and the bone conduction output curve of the right ear of the user; (3) According to the hearing threshold evaluation method, the hearing threshold after the hearing of the bone conduction hearing aid is determined through the air conduction hearing threshold of the user and the air conduction component input-output curve of the bone conduction hearing aid, so that the influence of superposition of the bone conduction sound and the air conduction sound at a cochlea is eliminated, and the accuracy and the reliability of the hearing threshold after the hearing of the bone conduction hearing aid are improved.

Drawings

The present application will be further illustrated by way of example embodiments, which will be described in detail with reference to the accompanying drawings. The embodiments are not limiting, in which like numerals represent like structures, wherein:

fig. 1 is a diagram of an exemplary application scenario of a hearing threshold assessment system following hearing assistance by a bone conduction hearing aid according to some embodiments of the present disclosure;

fig. 2 is an exemplary block diagram of a hearing threshold assessment system after hearing assistance by a bone conduction hearing aid according to some embodiments of the present disclosure;

fig. 3 is an exemplary flow chart of a method of threshold assessment after hearing assistance by a bone conduction hearing aid according to some embodiments of the present disclosure;

fig. 4 is an exemplary schematic diagram of a bone conduction hearing aid according to some embodiments of the present disclosure;

fig. 5 is a graph of sound pressure at a microphone of a sound source afferent bone conduction hearing aid versus bone conduction hearing level, according to some embodiments of the present disclosure;

FIG. 6 is an exemplary flow chart for obtaining bone conduction component input-output curves according to some embodiments of the present disclosure;

FIG. 7 is an exemplary schematic illustration of correction and non-correction of bone conduction component intensities in a bone conduction output curve of a left ear, according to some embodiments of the present disclosure;

Fig. 8 is an exemplary flow chart of a method of threshold assessment after hearing assistance by a bone conduction hearing aid according to further embodiments of the present disclosure;

fig. 9 is an exemplary schematic diagram of a bone conduction hearing aid according to some embodiments of the present disclosure;

fig. 10 is a graph of sound pressure at a microphone of a sound source afferent bone conduction hearing aid versus air conduction hearing level, according to some embodiments of the present disclosure;

FIG. 11 is an exemplary schematic diagram of correction and non-correction of the air conduction component intensities in the air conduction output curve of the left ear according to some embodiments of the present disclosure;

fig. 12 is an exemplary flow chart of a method of threshold assessment after hearing assistance by a bone conduction hearing aid according to further embodiments of the present disclosure;

FIG. 13 is a schematic diagram of a perception threshold curve shown in accordance with some embodiments of the present description;

FIG. 14 is an exemplary flow chart for determining hearing aid gain according to some embodiments of the present description;

fig. 15 is an exemplary schematic diagram of a threshold assessment system following hearing assistance by a bone conduction hearing aid according to some embodiments of the present disclosure.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is obvious to those skilled in the art that the present application may be applied to other similar situations according to the drawings without inventive effort. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.

It will be appreciated that "system," "apparatus," "unit" and/or "module" as used herein is one method for distinguishing between different components, elements, parts, portions or assemblies of different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.

Flowcharts are used in this application to describe the operations performed by systems according to embodiments of the present application. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.

The embodiment of the specification provides a hearing threshold assessment method after hearing assistance by a bone conduction hearing aid. In some embodiments, the method may include obtaining a bone conduction hearing threshold of the user, obtaining a bone conduction amount input-output curve of the bone conduction hearing aid, and determining a hearing threshold of the user after hearing assistance by the bone conduction hearing aid based on the bone conduction hearing threshold of the user and the bone conduction amount input-output curve of the bone conduction hearing aid. When a user wears the bone conduction vibrator on a single ear, the hearing threshold evaluation method can conveniently determine the hearing threshold of the user after hearing assistance of the bone conduction hearing aid without strict test environments and test equipment, and improves the convenience and rapidness of determining the hearing threshold of the user after hearing assistance of the bone conduction hearing aid. When the bone conduction vibrators are worn at the two ears of the user, the left ear of the user can receive bone conduction sound output by the bone conduction vibrators at the left ear and bone conduction sound output by the bone conduction vibrators at the right ear, and similarly, the right ear of the user can receive bone conduction sound output by the bone conduction vibrators at the right ear and bone conduction sound output by the bone conduction vibrators at the left ear, and based on the bone conduction sound, in order to improve the accuracy of the hearing threshold of the user after hearing assistance by the bone conduction hearing aid, in some embodiments, the hearing threshold evaluation method can further comprise acquiring and correcting the bone conduction output curve of the left ear and the bone conduction output curve of the right ear of the user. When the bone conduction vibrator vibrates, the shell and air in the shell can be driven to vibrate, the air outside the shell is vibrated due to the vibration of the shell, air conduction sound is generated, the air conduction sound can be used as the gain of the bone conduction hearing aid to be transmitted to the ear of a user, so that the prediction accuracy of the hearing threshold of the user after hearing the bone conduction hearing aid is affected, in order to further improve the accuracy of the hearing threshold of the user after hearing the bone conduction hearing aid, in some embodiments, the method can further comprise the steps of obtaining the air conduction hearing threshold of the user, obtaining the air conduction component input-output curve of the bone conduction hearing aid, and determining the hearing threshold of the user after hearing the bone conduction hearing aid according to the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve. In order to further increase the accuracy of the hearing threshold of the user after hearing the bone conduction hearing aid, in some embodiments, the method may further comprise obtaining a perception threshold curve of the bone conduction sound and the air conduction sound for the user, and determining the hearing threshold of the user after hearing the bone conduction hearing aid based on the perception threshold curve and the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold, and the bone conduction component input-output curve. In some embodiments, the hearing threshold assessment method may further comprise modifying the hearing threshold of the user's sound field, modifying the hearing threshold after hearing by the bone conduction hearing aid, and determining the hearing aid gain based on the modified hearing threshold of the user's sound field and the modified hearing threshold after hearing by the bone conduction hearing aid. According to the hearing threshold evaluation method after hearing assistance by the bone conduction hearing aid, when the hearing threshold of the user after hearing assistance by the bone conduction hearing aid is determined, the influence of the sound generated by the bone conduction hearing aid on the transmission of the sound through the skull is considered, and the bone conduction quantity intensity in the bone conduction output curve of the left ear and the bone conduction output curve of the right ear is corrected. Furthermore, the hearing threshold evaluation method provided by the specification also considers the influence of the air conduction sound, and the bone conduction component and the air conduction component are lower than the bone conduction hearing threshold and the air conduction hearing threshold of the user, but the bone conduction component and the air conduction component are overlapped and can be heard by a patient, and the influence of the double-ear loudness superposition effect is treated, so that the accuracy and the reliability of the hearing threshold of the determined user after hearing by the bone conduction hearing aid can be improved, and simultaneously, a store and a remote service provider without testing conditions can conveniently determine the hearing threshold of the user after hearing by the bone conduction hearing aid without strict testing environment and testing equipment, and the convenience and the rapidness for determining the hearing threshold of the user after hearing by the bone conduction hearing aid are improved.

Fig. 1 is an exemplary application scenario diagram of a threshold assessment system following hearing assistance by a bone conduction hearing aid according to some embodiments of the present description. As shown in fig. 1, the application scenario 100 of the hearing threshold assessment system after hearing assistance by a bone conduction hearing aid may include a processing device 110, a network 120, a storage device 130, a terminal device 140, and a bone conduction hearing aid 150. The processing device 110, the storage device 130, the terminal device 140, and the bone conduction hearing aid 150 may be connected and/or communicate with each other via the network 120 (e.g., a wireless connection, a wired connection, or a combination thereof). As shown in fig. 1, processing device 110 may be connected to storage device 130 through network 120. As another example, terminal device 140 may be coupled to processing device 110 and storage device 130 via network 120.

The processing device 110 may be used to process information and/or data related to the application scenario 100, such as, for example, a user bone conduction threshold, bone conduction component input-output curves, and the like. The processing device 110 may process data, information, and/or processing results obtained from other devices or system components and execute program instructions based on such data, information, and/or processing results to perform one or more functions described herein. By way of example only, the processing device 110 may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a special instruction set processor (ASIP), a Graphics Processing Unit (GPU), and the like.

The network 120 may connect components of the application scenario 100 and/or connect the application scenario 100 with external resource portions. The network enables communication between the components and other parts of the application scenario 100 that facilitate the exchange of data and/or information. The network may be a local area network, a wide area network, the internet, etc., and may be a combination of various network structures. By way of example only, the network 120 may include a cable network, a wired network, a fiber optic network, a telecommunications network, an intranet, the internet, a Local Area Network (LAN), and so forth.

Storage device 130 may be used to store data and/or instructions. The storage device 130 may be connected to the network 120 to communicate with one or more components of the application scenario 100 (e.g., the processing device 110, the user terminal 140). Storage device 130 may store data and/or instructions that are used by processing device 110 to perform or use the exemplary methods described in this specification. For example, the storage device 130 may store a user bone conduction threshold, a user gas conduction threshold, and the like. For another example, the memory device 130 may store instructions to obtain an air conduction component input-output curve of a bone conduction hearing aid.

Terminal device 140 may include one or more terminal devices or software. Terminal devices 140 may include mobile phones 140-1, tablet computers 140-2, laptop computers 140-3, and the like. The terminal device 140 may be used for input and/or output. For example, the terminal device 140 may obtain a user's air conduction threshold, bone conduction threshold, etc., based on the user's input. For another example, the terminal device 140 may display and/or play the determined hearing threshold of the user after hearing assistance through the bone conduction hearing aid via a display and/or speaker.

The bone conduction hearing aid 150 may be used to obtain sound information (e.g., ambient sound, wearer's sound, audio files obtained in other devices, etc.), process the obtained sound information, convert the processed sound information into a vibration signal, and transmit the vibration signal to the auditory center of the wearer through the bone of the wearer, etc., so that the wearer can hear the sound information carried by the vibration signal.

In some embodiments, bone conduction hearing aid 150 may include a microphone, bone conduction speaker, and signal processing system. Microphones may be used to pick up sound information (e.g., ambient sound, wearer sound) and process and convert the picked-up sound information into electrical signals carrying the sound information. The bone conduction speaker can convert the electric signal carrying the sound information obtained by the microphone into a vibration signal carrying the sound information and transmit the vibration signal to the auditory center of a wearer. The signal processing system may be used to process the electrical signals. Exemplary signal processing systems may include, but are not limited to, equalizer (EQ) systems, wide dynamic range compression (Wide Dynamic Range Compression, WDRC) systems, automatic gain control (Automatic Gain Control, AGC) systems.

It should be noted that the application scenario 100 is provided for illustrative purposes only and is not intended to limit the scope of the present description. Many modifications and variations will be apparent to those of ordinary skill in the art in light of the present description. For example, the application scenario may also include a database. As another example, application scenarios may be implemented on other devices to implement similar or different functionality. However, variations and modifications do not depart from the scope of the present description.

Fig. 2 is an exemplary block diagram of a threshold assessment system after hearing assistance with a bone conduction hearing aid according to some embodiments of the present disclosure. As shown in fig. 2, the hearing threshold evaluation system 200 after hearing assistance by a bone conduction hearing aid is hereinafter referred to simply as the hearing threshold evaluation system 200. In some embodiments, the threshold assessment system 200 may include a bone conduction component acquisition module 210 and a processing module 220. In some embodiments, threshold evaluation system 200 may be part of processing device 110 or implemented by processing device 110.

The bone conduction component acquisition module 210 may be configured to acquire a bone conduction threshold of the user and a bone conduction component input-output curve of the bone conduction hearing aid.

The processing module 220 may be configured to determine a hearing threshold of the user after hearing assistance by the bone conduction hearing aid based on the bone conduction hearing threshold of the user and the bone conduction amount input-output curve of the bone conduction hearing aid.

In some embodiments, bone conduction component acquisition module 210 may be further configured to: acquiring a bone conduction output curve of a left ear and a bone conduction output curve of a right ear of a user; the processing module 220 may include a bone conduction component propagation correction module 221 configured to correct the bone conduction component intensities in the bone conduction output curve of the left ear and the bone conduction output curve of the right ear to obtain a corrected bone conduction output curve of the left ear and a corrected bone conduction output curve of the right ear.

In some embodiments, bone conduction component pair propagation correction module 221 may be further configured to: adding the bone conduction component of the left ear to the bone conduction component intensity of the bone conduction output curve of the left ear; and adding the bone conduction component of the left ear to the bone conduction component of the right ear to the bone conduction component intensity of the bone conduction output curve of the right ear.

In some embodiments, bone conduction component acquisition module 210 may be further configured to: a bone conduction component input-output curve is determined based on at least one preset parameter of the bone conduction hearing aid.

In some embodiments, bone conduction component acquisition module 210 may be further configured to: obtaining the sound pressure of the test air conduction sound and the bone conduction force level generated by the bone conduction hearing aid under the effect of the test air conduction sound; and determining a bone conduction component input-output curve according to the sound pressure and bone conduction force level of the test air conduction sound.

In some embodiments, the threshold evaluation system 200 may further include an air conduction component acquisition module 230 configured to: acquiring a user air guide hearing threshold; acquiring an air conduction component input-output curve of the bone conduction hearing aid, wherein the processing module 220 may be further configured to: and determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid according to the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve.

In some embodiments, the air conduction component acquisition module 230 may be further configured to: an air conduction component input-output curve is determined according to at least one preset parameter of the bone conduction hearing aid.

In some embodiments, the air conduction component acquisition module 230 may be further configured to: obtaining the sound pressure of the test air conduction sound and the air conduction sound pressure generated by the bone conduction hearing aid under the effect of the test air conduction sound; and determining an air conduction component input-output curve according to the sound pressure and the bone conduction force level of the test air conduction sound.

In some embodiments, the threshold evaluation system 200 may further include a perception threshold curve simulation module 240 configured to: acquiring perception threshold curves of bone conduction sound and air conduction sound of a user; the processing module 220 may be further configured to: and determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid according to the perception threshold curve, the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve.

In some embodiments, the threshold assessment system 200 may further include a sound field threshold correction module 250 configured to: correcting the hearing threshold of the sound field of the user; correcting the hearing threshold after hearing assistance of the bone conduction hearing aid; the processing module 220 may be further configured to: and determining hearing aid gain according to the corrected hearing threshold of the user sound field and the corrected hearing threshold after hearing assistance of the bone conduction hearing aid.

It should be noted that the above description of the system and its modules is for convenience of description only and is not intended to limit the present description to the scope of the illustrated embodiments. It will be appreciated by those skilled in the art that, given the principles of the system, various modules may be combined arbitrarily or a subsystem may be constructed in connection with other modules without departing from such principles. For example, the bone conduction component acquisition module and the processing module may be integrated in one component. For another example, each module may share one storage device, or each module may have a respective storage device. Such variations are within the scope of the present description.

Fig. 3 is an exemplary flow chart of a method of threshold assessment after hearing assistance by a bone conduction hearing aid according to some embodiments of the present disclosure. In some embodiments, the process 300 may be performed by the processing device 110. As shown in fig. 3, the process 300 may include the steps of:

step 310, a bone conduction threshold of a user is obtained.

In some embodiments, step 310 may be performed by bone conduction component acquisition module 210.

Bone conduction threshold may refer to the minimum bone conduction stimulation intensity that a human ear just can hear. The unit of bone conduction stimulation intensity is dBFL. In some embodiments, the bone conduction threshold may include a left ear bone conduction threshold and a right ear bone conduction threshold. In some embodiments, the bone conduction threshold of the user may also include a bone conduction masked threshold and a bone conduction unmasked threshold. Bone conduction masking thresholds may be represented by BTM and bone conduction unmasked thresholds may be represented by BT. Bone conduction masking threshold refers to the bone conduction threshold of the test ear measured under conditions that mask non-test ears. The masked threshold may reflect the actual threshold of a user's single ear. For example, the test ear is the left ear and masking of the right ear is required to obtain the bone conduction masking threshold of the left ear. When the bone conduction threshold of the left ear or the right ear of the user is measured, the other ear is masked, and when the bone conduction threshold of the test ear is measured, the non-test ear can be prevented from hearing the sound transmitted from the test ear. Correspondingly, an unmasked bone conduction threshold refers to a bone conduction threshold of a test ear measured without masking a non-test ear. In some embodiments, masking may be accomplished by including the input of noise at non-test ears.

In some embodiments, bone conduction component acquisition module 210 may acquire a bone conduction hearing threshold of the user based on the user's hearing report. The user's hearing report may be provided by a hearing test institution and/or hospital and stored in a memory device, and bone conduction component acquisition module 210 may acquire the user's bone conduction hearing threshold by communicating with the memory device.

In some embodiments, bone conduction component acquisition module 210 may acquire a bone conduction hearing threshold of the user based on the user's input. For example, the user inputs the bone conduction threshold through the terminal device, which bone conduction amount acquisition module 210 may determine as the bone conduction threshold of the user.

In some embodiments, bone conduction component acquisition module 210 may also acquire the bone conduction hearing threshold of the user in a variety of other possible ways. Such as testing, historical data based acquisition, etc.

For purposes of illustration, this section will illustrate an example of testing the bone conduction hearing threshold of an acquisition user. The user wears the bone conduction transducer and tests the left ear and the right ear of the user respectively under test signals with different frequencies (for example, 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 8000Hz, etc.). For example, when the frequency of the test signal is 500Hz, after the right ear of the user is shielded, the sound can be just heard by the left ear of the user at 40dB, and then the bone conduction shielding hearing threshold of the left ear of the user is 40dB. For another example, when the frequency of the test signal is 500Hz, if the right ear of the user is not masked, the sound is just audible to the left ear of the user at 35dB, and then the left ear bone of the user does not mask the hearing threshold at 35dB. The bone conduction masking hearing threshold and the bone conduction non-masking hearing threshold of the right ear are obtained, and the above-mentioned method can be used for obtaining.

Step 320, obtaining a bone conduction component input-output curve of the bone conduction hearing aid.

In some embodiments, step 320 may be performed by bone conduction component acquisition module 210.

The bone conduction component input-output curve refers to a relationship between the sound pressure level at the microphone of the bone conduction hearing aid where the sound source is transmitted and the bone conduction force level output by the bone conduction hearing aid.

The bone conduction force level is used to characterize the strength of the bone conduction force output by the bone conduction hearing aid. The bone conduction hearing aid has different bone conduction components at different frequencies, and in some embodiments, obtaining a bone conduction component input-output curve of the bone conduction hearing aid may include obtaining bone conduction component outputs at different frequencies. In some embodiments, the bone conduction amount input-output curve may be determined based on at least one preset parameter of the bone conduction hearing aid, and may be specifically determined by fig. 4 and its description.

Fig. 4 is an exemplary schematic diagram of a bone conduction hearing aid according to some embodiments of the present disclosure. As shown in fig. 4, in some embodiments, the bone conduction hearing aid may include a microphone 410, a signal processing system 420, and a bone conduction speaker 430.

The microphone 410 is used for acquiring an external sound signal and converting the sound signal into an electrical signal. Microphone 410 may include, but is not limited to, various types of microphones such as electrodynamic (moving coil, aluminum ribbon), capacitive (dc polarized), piezoelectric (crystal, ceramic), and electromagnetic.

The signal processing system 420 is used for gain processing of the sound signal. In some embodiments, signal processing system 420 may include, but is not limited to, an equalizer system, a wide dynamic range compression system, an automatic gain control system, and the like.

Bone conduction speaker 430 generates mechanical waves (also referred to as bone conduction sounds) based on the gain-processed electrical signals.

By way of example only, a test air conduction sound (SF shown in fig. 4) external sound source having a specific sound pressure level is collected by the microphone 410, the microphone 410 receives the test air conduction sound SF and converts it into an electrical signal V1 and transmits it to the signal processing system 420, the signal processing system 420 performs gain processing on the electrical signal V1 to obtain an electrical signal V2, and the bone conduction speaker 430 generates bone conduction sound based on the electrical signal V2, the bone conduction level of which may be denoted by B.

In some embodiments, the bone conduction component acquisition module 210 may determine the bone conduction component input-output curve based on at least one preset parameter of the bone conduction hearing aid. It will also be appreciated that by determining preset parameters of the bone conduction hearing aid, the bone conduction amount output by the bone conduction hearing aid may be deduced. In some embodiments, the preset parameters may include any one or more of Microphone Sensitivity (MS), speaker bone conduction sensitivity (BS), speaker air conduction sensitivity (AS), hearing aid GAIN (GAIN), equalizer parameters, wide dynamic range compression parameters, automatic GAIN control parameters, and the like. In some embodiments, the preset parameters may be obtained by manual input, obtaining historical data, and the like.

In some embodiments, bone conduction component acquisition module 210 may determine bone conduction level B by equation (1) based on the sound pressure level of the test air conduction, microphone sensitivity MS, speaker bone conduction sensitivity BS, and hearing aid GAIN:

B＝SF+MS+GAIN+BS (1)

in some embodiments, the bone conduction component acquisition module 210 may determine the bone conduction force level B corresponding to the test air conduction sound of the different sound pressure levels based on the test air conduction sound of the different sound pressure levels, thereby determining the bone conduction component input-output curve. For example, the bone conduction component acquisition module 210 may determine the bone conduction force level B based on the sound pressure level of the test air conduction sound through formula (1), and the bone conduction component acquisition module 210 may construct a relationship between the sound pressure level of the test air conduction sound and the value of the bone conduction force level based on the plurality of sets of the sound pressure level of the test air conduction sound, thereby determining the bone conduction component input-output curve.

In some embodiments, the bone conduction component acquisition module 210 may obtain the sound pressure of the test air conduction sound and the bone conduction force level generated by the bone conduction hearing aid under the test air conduction sound, and determine the bone conduction component input-output curve according to the sound pressure of the test air conduction sound and the bone conduction force level. For example, the bone conduction component acquisition module 210 may be based on the industry standard SJZ 9143.2-1987 with a hearing aid characteristic measurement method of the output of a bone vibrator (also called bone conduction hearing aid, bone conduction vibrator), or the international standard IEC 60118-9Methods of measurement of the performance characteristics of bone conduction hearing aids to determine the bone conduction force level heard by the user under the test air conduction sound, and further, based on the values of the sound pressure level and bone conduction force level of the plurality of sets of test air conduction sounds, a relationship between the two may be constructed, so as to obtain a bone conduction component input-output curve.

Test air conduction may refer to air conduction used in testing. Various parameters of the test air guide are known. For example, parameters such as amplitude, frequency, sound pressure, phase and the like of the test air guide sound can be preset according to different requirements. In some embodiments, the bone conduction component input-output curves of the bone conduction hearing aid corresponding to different frequencies can be obtained by adjusting the frequency of the test air conduction sound.

Step 330, determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid according to the bone conduction hearing threshold of the user and the bone conduction component input-output curve of the bone conduction hearing aid.

In some embodiments, step 330 may be performed by processing module 220.

In some embodiments, determining the hearing threshold of the user after hearing by the bone conduction hearing aid may comprise: and determining a bone conduction hearing level input-output curve according to the bone conduction component input-output curve of the bone conduction hearing aid, and determining the hearing threshold of the user after hearing assistance of the bone conduction hearing aid based on the bone conduction hearing level input-output curve and the bone conduction hearing threshold.

Clinically, in order to facilitate distinguishing the hearing impaired person from the hearing normal person, it is often necessary to convert the bone conduction hearing level into a bone conduction hearing level. In some embodiments, determining the bone conduction hearing level input-output curve from the bone conduction component input-output curve of the bone conduction hearing aid may include: and determining the bone conduction hearing level input-output curve according to the bone conduction component input-output curve of the bone conduction hearing aid and the reference equivalent threshold force level. The bone conduction hearing level input-output curve refers to a relationship between the sound pressure level at the microphone of the bone conduction hearing aid where the sound source is transmitted and the bone conduction hearing level output by the bone conduction hearing aid. In some embodiments, determining the bone conduction hearing level input-output curve from the bone conduction component input-output curve and the reference equivalent threshold force level of the bone conduction hearing aid may include: the bone conduction component input-output curve is translated in the negative direction of the vertical axis by a specific unit, which is the reference equivalent threshold force level. That is, subtracting the reference equivalent threshold force level from the ordinate (bone conduction force level) in the bone conduction component input-output curve yields the bone conduction hearing level input-output curve. The reference equivalent threshold force level refers to the average of the minimum vibration force levels that a normal person of hearing can hear. Correspondingly, the bone conduction hearing level is also the intensity of the bone conduction force used to characterize the output of the bone conduction hearing aid, except that the bone conduction hearing level is the difference between the bone conduction force level and the reference equivalent threshold force level. In some embodiments, the reference equivalent threshold force level may be a fixed value, which may be preset and stored in bone conduction component acquisition module 210. In some embodiments, the bone conduction hearing level may be positive, negative, or 0. Fig. 5 shows a two-dimensional relationship between sound pressure at a microphone of a bone conduction hearing aid at a specific frequency and bone conduction hearing level, with the horizontal axis in the coordinate system being sound pressure at the microphone of the bone conduction hearing aid at the sound source (dBSPL) and the vertical axis being bone conduction hearing level (dBHL) output by the bone conduction hearing aid. It should be noted that fig. 5 is merely an example of a bone conduction hearing aid input-output curve corresponding to a certain frequency, and the bone conduction hearing aid has different bone conduction hearing level input-output curves at different frequencies, and in some embodiments, the bone conduction hearing aid input-output curve corresponding to different frequencies may be obtained by adjusting the frequency of the test air conduction sound, so as to obtain the bone conduction hearing level input-output curve corresponding to different frequencies of the bone conduction hearing aid based on the above step 330.

In some embodiments, determining the hearing threshold of the user after hearing with the bone conduction hearing aid based on the bone conduction hearing level input-output curve and the bone conduction hearing threshold may include: based on the bone conduction hearing thresholds of the user at different frequencies and the bone conduction hearing level input-output curves corresponding to the different frequencies, the hearing thresholds of the user after hearing assistance by the bone conduction hearing aid are determined. In some embodiments, the user has corresponding bone conduction thresholds at different frequencies (250 Hz, 500Hz, 1000H z, 2000Hz, 4000Hz, 8000 Hz), e.g., at frequencies of 250Hz, 500Hz, 1000H z, 2000Hz, the bone conduction thresholds of the user are M1, M2, M3, M4, respectively. Correspondingly, bone conduction hearing aids also have different bone conduction hearing level input-output curves at different frequencies. Merely by way of example, the bone conduction hearing threshold of a user at a particular frequency and the bone conduction hearing level input-output curve of a bone conduction hearing aid at a particular frequency (e.g., the bone conduction hearing level input-output curve shown in fig. 5), the bone conduction hearing level input-output curve shown in fig. 5 has a linear relationship (e.g., the linear function image shown in fig. 5) between the bone conduction hearing level and the sound pressure of the test air conduction sound at less than a particular sound pressure, by which the corresponding air conduction sound pressure level can be obtained with the bone conduction hearing threshold of the user at the particular frequency. Specifically, here, the bone conduction hearing threshold of the user at the specific frequency is taken as a variable in the linear relationship, namely, the bone conduction hearing level which is reflected and just heard by the user. Further, in order to facilitate distinguishing the hearing impaired person from the hearing normal person, it is often necessary to convert the air conduction sound pressure level into an air conduction hearing level. In some embodiments, the air conduction hearing level is the difference between the air conduction sound pressure level and the reference equivalent threshold sound pressure level. Wherein the reference equivalent threshold sound pressure level represents the average value of the minimum air guide sound intensity (sound pressure level) that a person with normal hearing can hear. The air conduction hearing level obtained by the inner conversion is the hearing threshold of the user after hearing assistance of the bone conduction hearing aid under specific frequency. Further, the acquisition of the hearing threshold of a user after hearing assistance with a bone conduction hearing aid at different frequencies may be determined by using the bone conduction hearing threshold of the user at different frequencies and the bone conduction hearing level input-output curve of the bone conduction hearing aid at different frequencies.

In the process of determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid, the bone conduction hearing threshold of the user and the bone conduction component input-output curve of the bone conduction hearing aid are used, so that a store and a remote service provider without testing conditions can conveniently determine the hearing threshold of the user after hearing assistance by the bone conduction hearing aid without strict testing environment and testing equipment, and convenience and rapidity for determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid are improved.

It should be noted that the above procedure 300 may determine the threshold of a user after wearing a single bone conduction hearing aid in a single ear. For example, when one of the user's left and right ears is wearing a bone conduction hearing aid and the other ear is not wearing a bone conduction hearing aid, the above-described procedure 300 is used to determine the threshold after the user's left ear is wearing the bone conduction hearing aid and the threshold after the user's right ear is wearing the bone conduction hearing aid, respectively. In some embodiments, the bone conduction threshold used in determining the threshold of a user's single ear after hearing with a hearing aid is a bone conduction masking threshold.

Because the force generated by the bone conduction hearing aid is transmitted through bones, when bone conduction vibrators are arranged at the two ears of a user, the left ear of the user can receive bone conduction sound output by the bone conduction vibrators at the left ear and bone conduction sound output by the bone conduction vibrators at the right ear, and similarly, the right ear of the user can receive bone conduction sound output by the bone conduction vibrators at the right ear and bone conduction sound output by the bone conduction vibrators at the left ear. Based on the above, in order to improve the accuracy of the hearing threshold of the user after wearing the bone conduction hearing aid, in some embodiments, it is necessary to correct the bone conduction amount heard at the left ear and the bone conduction amount heard at the right ear of the user. For details regarding the correction of bone conduction amounts, reference may be made to fig. 6, 7 and their related content.

Fig. 6 is an exemplary flow chart for obtaining bone conduction component input-output curves according to some embodiments of the present disclosure. In some embodiments, the process 600 may be performed by the processing device 110. As shown in fig. 6, the process 600 may include the steps of:

step 610, obtaining a bone conduction output curve of a left ear and a bone conduction output curve of a right ear of the user.

In some embodiments, step 610 may be performed by bone conduction component acquisition module 210.

The bone conduction output curve of the left ear of the user refers to the bone conduction component input-output curve received at the left ear of the user, and the bone conduction output curve of the right ear of the user refers to the bone conduction component input-output curve received at the right ear of the user. The bone conduction output curves of the left ear and the right ear of the user can be obtained by referring to the relevant contents in fig. 3 and fig. 4.

And 620, correcting the bone conduction component intensities in the bone conduction output curve of the left ear and the bone conduction output curve of the right ear to obtain a corrected bone conduction output curve of the left ear and a corrected bone conduction output curve of the right ear.

In some embodiments, step 620 may be performed by the bone conduction component pair propagation modification module 221 included by the processing module 220.

The bone conduction component may refer to a bone conduction force level generated by the bone conduction transducer on one side to a bone conduction force level of the ear on the other side. In some embodiments, the bone conduction component may be considered approximately as the bone conduction component at the opposite ear. For example, the bone conduction component of the right ear to the left ear may be the bone conduction force level at the right ear. Since the propagation of the bone conduction force stage through the skull may be lost, that is, the bone conduction force stage may be attenuated during the propagation through the skull, this phenomenon is called inter-skull attenuation, and here, the attenuation value of the bone conduction component of the opposite ear through the skull needs to be considered in calculating the bone conduction component. For specific consideration of the inter-cranial attenuation reference is made to the following description.

In some embodiments, the intensity of the bone conduction component transmitted by the right ear to the left ear is related to the attenuation value and the transmission time of bone conduction sound transmitted from the right ear to the left ear. The attenuation value may refer to a loss value of intensity of a conduction component conducted through the skull from one side of the skull to the other side of the skull. For example, if the intensity of the bone conduction component transmitted from the right ear to the left ear is a1 and the intensity transmitted from the right ear to the left ear through the skull is a2, the attenuation value is (a 1-a 2). The delivery time may refer to the time required to conduct a bone conduction component from one side of the skull through the skull to the other side of the skull.

In some embodiments, the bone conduction component of the right ear to the left ear can be determined by equation (2):

BSRL＝BSR-TA (2)

wherein BSRL may represent the bone conduction component of the right ear to the left ear, BSR may represent the bone conduction hearing level of the right ear, TA may represent the attenuation value of the intensity of the bone conduction component, which may be a preset value.

In some embodiments, the bone conduction component of the left ear may be added to the bone conduction component intensity of the bone conduction output curve of the left ear, and the bone conduction component of the right ear to the left ear may be represented by equation (3):

where BL2 may represent the bone conduction component strength of the left ear after correction, BL1 may represent the bone conduction component strength of the left ear before correction, e and i are constants, w may represent the angular frequency, and Δt may represent the time of transmission.

In some embodiments, modifying the bone conduction component strength in the bone conduction output curve of the right ear comprises: the bone conduction component intensity of the bone conduction output curve of the right ear is added with the bone conduction component of the left ear to the right ear. In some embodiments, the intensity of the bone conduction component transmitted from the left ear to the right ear is related to the attenuation value and the transmission time of bone conduction sound transmitted from the left ear to the right ear.

In some embodiments, the left-to-right ear bone conduction component can be determined by equation (4):

BSLR＝BSL-TA (4)

Wherein, BSLR may represent the bone conduction component of the left ear to the right ear, BSL may represent the bone conduction hearing level of the left ear, and TA may represent the attenuation value of the intensity of the bone conduction component, which may be a preset value.

In some embodiments, the bone conduction component of the left ear to the right ear may be added to the bone conduction component intensity of the bone conduction output curve of the right ear, and may be represented by equation (5):

where BR2 may represent the bone conduction component strength of the right ear after correction, BR1 may represent the bone conduction component strength of the right ear before correction, e and i are constants, w may represent the angular frequency, and Δt may represent the time of transmission.

Some embodiments of the present disclosure may make the bone conduction output curve of the left ear and the bone conduction output curve of the right ear more accurate by correcting the bone conduction component intensities in the bone conduction output curve of the left ear and the bone conduction output curve of the right ear.

Fig. 7 is an exemplary schematic illustration of correction and non-correction of bone conduction component intensities in a bone conduction output curve of a left ear, according to some embodiments of the present disclosure. Taking the correction of the bone conduction component intensity of the left ear as an example, in fig. 7, the solid line represents the bone conduction component intensity BL1 of the left ear before correction, the broken line represents the bone conduction component intensity BL2 of the left ear after correction, and the bone conduction component intensity BL1 of the left ear is corrected by the above method, it can be seen from the figure that BL2 is higher than BL1, the curve BL2 considers the transmitted bone conduction component, and the corrected bone conduction output curve is more accurate.

Some embodiments of the present disclosure use transcranial attenuation values and time of contralateral transcranial interaction in correcting bone conduction output curves in relation to the intensity of the bone conduction components, so that the determined bone conduction components can be more accurate, and the accuracy of the corrected bone conduction output curves corresponding to the ears is improved.

In some embodiments, the bone conduction level input-output curve for the left ear may be determined based on the bone conduction output curve received at the modified left ear, the bone conduction level input-output curve for the right ear may be determined based on the bone conduction output curve received at the modified right ear, the bone conduction level input-output curve received at the left ear may be determined based on the bone conduction level received at the left ear and the reference equivalent threshold force level, and the bone conduction level input-output curve received at the right ear may be determined based on the bone conduction level received at the right ear and the reference equivalent threshold force level. For example, the bone conduction hearing level input-output curve received at the left ear may be determined by calculating the difference of the bone conduction force level received at the left ear and the reference equivalent threshold force level, and the bone conduction hearing level input-output curve at the right ear may be determined by calculating the difference of the bone conduction force level received at the right ear and the reference equivalent threshold force level. The threshold after hearing by the bone conduction hearing aid is then determined from the bone conduction thresholds of the user (e.g., left and right ear bone conduction thresholds), the bone conduction hearing level input-output curve received at the left ear, and the bone conduction hearing level input-output curve received at the right ear. For details on determining the bone conduction threshold of a user after hearing with a bone conduction hearing aid reference is made to fig. 3 of the present specification and its associated description.

The bone conduction hearing aid may include a housing, which may be used to accommodate a microphone, a speaker (bone conduction transducer), etc., and may be located in a facial area near the user's ear (e.g., front, upper, lower, or rear) when the bone conduction hearing aid is worn by the user, and may drive the housing and air inside the housing to vibrate when the bone conduction transducer vibrates, the housing vibrating to cause air outside the housing to vibrate, thereby generating a gas guide sound, which may also be transmitted to the user's ear as a gain of the bone conduction hearing aid, thereby affecting the accuracy of prediction of the hearing threshold after the bone conduction hearing aid is worn by the user. Based on the above problems, the hearing threshold evaluation method after hearing assistance by the bone conduction hearing aid may further include: and determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid according to the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve. For details on the air conduction threshold, air conduction component input-output curves, reference is made to fig. 8-10 and their associated descriptions.

Fig. 8 is an exemplary flow chart of a method of threshold assessment after hearing assistance by a bone conduction hearing aid according to further embodiments of the present disclosure. In some embodiments, the process 900 may be performed by the processing device 110. As shown in fig. 8, the process 900 may include the steps of:

Step 910, a user air conduction hearing threshold is obtained.

In some embodiments, step 910 may be performed by the air conduction component acquisition module 230.

The Qi-directed hearing threshold may refer to the minimum Qi-directed stimulation intensity that the human ear just can hear. The unit of air conduction stimulation intensity is dBSPL. The air conduction threshold may be represented by an AT. In some embodiments, the air conduction threshold may include a left ear air conduction threshold and a right ear air conduction threshold. The left ear air conduction threshold may be represented by ATL and the right ear air conduction threshold may be represented by ATR.

In some embodiments, the user's air-conduction hearing threshold may be obtained based on a hearing report through the user. The hearing reports of the user may be provided by a hearing test institution and/or hospital and stored in a memory device, and the air conduction component acquisition module 230 may communicate with the memory device to acquire the air conduction hearing threshold of the user. In some embodiments, the user's air conduction hearing threshold may also be obtained based on the user's input. For example, the user enters the air conduction hearing threshold through the terminal device. In some embodiments, the user's air conduction threshold may also be obtained in other various possible ways. Such as testing, historical data based acquisition, etc.

For purposes of illustration, this section will illustrate an example of testing the air conduction hearing threshold of an acquisition user. The user wears the bone conduction transducer and tests the left ear and the right ear of the user respectively under test signals with different frequencies (for example, 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 8000Hz, etc.). For example, when the frequency of the test signal is 500Hz, the sound is just audible to the left ear of the user at 40dB, and the left ear air conduction threshold of the user is 40dB. For another example, when the frequency of the test signal is 500Hz, the sound is just audible to the user's right ear at 35dB, and the user's right ear air conduction threshold is 35dB.

Step 920, obtaining an air conduction component input-output curve of the bone conduction hearing aid. In some embodiments, step 920 may be performed by the air conduction component acquisition module 230.

The air conduction component input-output curve may refer to a relationship between the sound pressure (which may be represented by SF) at the microphone of the bone conduction hearing aid where the sound source is transmitted to the air conduction hearing level of the bone conduction hearing aid output.

Fig. 10 shows a plot of sound pressure at a microphone of a bone conduction hearing aid versus air conduction hearing level for a sound source of a particular frequency, with the horizontal axis in the coordinate system being the sound pressure level (dBSPL) at the microphone of the bone conduction hearing aid for the sound source and the vertical axis being the air conduction hearing level (dBHL) output by the bone conduction hearing aid.

Fig. 9 is an exemplary schematic diagram of a bone conduction hearing aid according to some embodiments of the present disclosure. As shown in fig. 9, in some embodiments, the bone conduction hearing aid may include a microphone 1010, a signal processing system 1020, and a bone conduction speaker 1030.

Microphone 1010, signal processing system 1020, and bone conduction speaker 1030 are identical or similar to microphone 410, signal processing system 420, and bone conduction speaker 430 described above in fig. 4, and are not described again here.

By way of example only, a test air conduction sound (SF shown in fig. 10) external sound source having a particular sound pressure level is collected by microphone 1010, microphone 1010 receives the test air conduction sound SF and converts it into an electrical signal V1 and transmits it to signal processing system 1020, signal processing system 1020 subjects electrical signal V1 to gain processing to obtain electrical signal V2, and bone conduction speaker 1030 generates an air conduction sound based on electrical signal V2, the air conduction level of which can be denoted by a.

In some embodiments, the air conduction component input-output curve may be determined according to at least one preset parameter of the bone conduction hearing aid. It will also be appreciated that by determining preset parameters of the bone conduction hearing aid, the air conduction component of the bone conduction hearing aid output may be deduced. In some embodiments, the preset parameters may include any one or more of Microphone Sensitivity (MS), speaker bone conduction sensitivity (BS), speaker air conduction sensitivity (AS) hearing aid GAIN (GAIN), equalizer parameters, wide dynamic range compression parameters, automatic GAIN control parameters, and the like. In some embodiments, the preset parameters may be obtained by manual input, obtaining historical data, and the like.

In some embodiments, the air guide sound pressure level a may be determined by equation (6) based on the sound pressure level SF of the test air guide sound, the microphone sensitivity MS, the speaker air guide sensitivity AS, and the hearing aid GAIN:

A＝SF+MS+GAIN+AS (6)

in some embodiments, the air conduction component input-output curve may be determined based on the sound pressure level SF of the test sound field air conduction, the air conduction sound pressure level a, and the reference equivalent threshold sound pressure level. For example, the air conduction sound pressure level a can be determined based on the sound pressure SF of the test air conduction sound through the formula (6). Specifically, the air conduction hearing level is determined based on the air conduction sound pressure level a and the reference equivalent threshold sound pressure level, for example, by calculating the difference between the air conduction sound pressure level a and the reference equivalent threshold sound pressure level. In some embodiments, determining the air conduction component input-output curve may further include constructing a relationship between the sound pressure of the air conduction sound of the plurality of sets of test sound field and the value of the air conduction hearing level to determine the air conduction component input-output curve.

Some embodiments of the present description determine the air conduction component input-output curve based on the sound pressure of the test air conduction sound and preset parameters of the bone conduction hearing aid. By the arrangement, the air conduction hearing level corresponding to the sound pressure of different test air conduction sounds can be obtained without performing actual test, and the rapidness and the speed of determining the air conduction component input-output curve are improved.

In some embodiments, the air conduction component obtaining module 230 may obtain the sound pressure of the test air conduction sound and the air conduction sound pressure generated by the bone conduction hearing aid under the test air conduction sound, and determine the air conduction component input-output curve according to the sound pressure and the air conduction hearing level of the test air conduction sound. For example, the air conduction component obtaining module 230 makes a test method according to GB/T25102.100-2010 on the premise of isolating the influence of the sound field itself, determines the air conduction sound pressure level of the bone conduction hearing aid, which is heard by the user under the test air conduction sound effect, and then obtains the air conduction hearing level of the bone conduction hearing aid under the air conduction sound effect based on the air conduction sound pressure level and the reference equivalent threshold sound pressure level. For example, the difference between the measured air conduction sound pressure level and the reference equivalent threshold force level is calculated to obtain the air conduction hearing level generated under the test air conduction sound. Further, a relationship between the sound pressure level of the plurality of sets of test air guide sounds and the value of the air guide hearing level can be constructed based on the values of the two, so that an air guide component input-output curve is obtained.

When a user wears the bone conduction hearing aid, the bone conduction vibrator is positioned near the ear of the user and does not block the auditory canal of the user, and in this case, sound generated by an external sound field may be received by the ear of the user, so that the external sound field has a great influence on determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid. Therefore, it is necessary to consider the influence of the external sound field.

In some embodiments, the corrected left ear air conduction component may be determined by equation (7):

where AL2 may represent the left ear air conduction component after correction, AL1 may represent the left ear air conduction component before correction, e and i are constants, w may represent the angular frequency, and Δt1 may represent the signal processing time.

In some embodiments, the corrected right ear air conduction component may be determined by equation (8):

wherein AR2 may represent the right ear air conduction component after correction, AR1 may represent the right ear air conduction component before correction, e and i are constants, w may represent the angular frequency, and Δt1 may represent the signal processing time.

FIG. 11 is an exemplary schematic diagram of correction and non-correction of the air conduction component intensity in the air conduction output curve of the left ear according to some embodiments of the present disclosure. Taking the correction of the left-ear air conduction component intensity as an example, in fig. 11, the solid line represents the left-ear air conduction component AL1 before correction, the broken line represents the air conduction component intensity AL2 of the left ear after correction, and by correcting the left-ear air conduction component AL1 in the above-mentioned manner, it can be seen from the figure that AL2 is higher than AL1, so that the air conduction output curve after correction is more accurate.

Step 930, determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid according to the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve.

In some embodiments, step 930 may be performed by processing module 220.

Whether bone conduction or air conduction, eventually reaches the cochlea of the user, causing the basement membrane to vibrate, thereby causing acoustic nerve impulses. When bone conduction and air conduction are present at the same time (i.e., bone conduction component and air conduction component are present at the same time), they are superimposed at the cochlea. At this time, the bone conduction component and the air conduction component are lower than the bone conduction hearing threshold and the air conduction hearing threshold of the user, but the bone conduction component and the air conduction component are overlapped and can be heard by the patient, so that the estimated hearing threshold accuracy of the user passing through the bone conduction hearing aid is affected. Based on the above-mentioned problems, in order to correct the hearing threshold of a user passing through a bone conduction hearing aid, in some embodiments, determining the hearing threshold of the user after hearing through the bone conduction hearing aid may comprise: and acquiring a perception threshold curve of the bone conduction sound and the air conduction sound of the user, and determining the hearing threshold of the user after hearing assistance of the bone conduction hearing aid according to the perception threshold curve, the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve. With respect to obtaining a perception threshold curve of the user for bone conduction and air conduction and determining the hearing threshold of the user after hearing aid based on the perception threshold curve and air conduction hearing threshold, air conduction component input-output curve, bone conduction hearing threshold, bone conduction component input-output curve, reference is made to fig. 12 and its associated description.

According to some embodiments of the specification, the hearing threshold of the user after hearing assistance of the bone conduction hearing aid is determined through the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve, influences caused by factors such as the bone conduction component, an external sound field, superposition effects of bone conduction sound and air conduction sound and the like are fully considered, and accuracy of determining the hearing threshold of the user after hearing assistance of the bone conduction hearing aid is further improved.

Fig. 12 is an exemplary flow chart of a method of threshold assessment after hearing assistance by a bone conduction hearing aid according to further embodiments of the present disclosure. In some embodiments, the process 1300 may be performed by the processing device 110. As shown in fig. 12, the process 1300 may include the following steps:

step 1310, obtaining a user's perception threshold curves for bone conduction and air conduction. In some embodiments, step 1310 may be performed by the perception threshold curve simulation module 240.

The perception threshold may refer to the minimum stimulus intensity at which bone conduction and air conduction simultaneously cause human auditory perception at the cochlea. For example, when both air conduction and bone conduction are present, the two sounds cause the minimum stimulation intensity at the cochlea that is perceived as audible to the person. Further, the perception threshold curve may refer to a curve formed based on a perception threshold. The perception threshold curve may reflect the intensity of sound that causes a human auditory perception.

In some embodiments, the user's perception threshold curves for bone conduction and air conduction can be obtained by equation (9):

where STL represents the left ear perception threshold and Δt2 represents the time difference of the air conduction component relative to the bone conduction component. It follows that the perception threshold curve is related to the bone conduction threshold, the air conduction threshold, and the time difference of the air conduction component relative to the bone conduction component of the user.

FIG. 13 is a schematic diagram of a perception threshold curve shown in accordance with some embodiments of the present description. Taking the left ear as an example, fig. 13 shows the perception threshold curve at Δt2=0, btm=30 dBHL, at=70 dBHL, the horizontal axis in the coordinate system being the air conduction hearing level AL2 (dBHL) and the vertical axis being the bone conduction hearing level BL2 (dBHL), points on or off the curve may represent stimuli capable of causing human auditory perception. For example, in fig. 14, the intersection of the perception threshold curve and the horizontal axis is 70dBHL, which indicates that the left ear air conduction hearing threshold is 70dBHL, the intersection of the perception threshold curve and the vertical axis is 30dBHL, which indicates that the left ear bone conduction hearing threshold is 30dBHL. For another example, if both the air conduction hearing level AL2 is 70dBHL and the bone conduction hearing level BL2 is 40dBHL, the air conduction component and the bone conduction component act simultaneously (i.e., overlap), which may cause stimulation of human auditory perception.

It should be noted that, the perception threshold curve shown in fig. 13 considers the influence caused by the superposition of the air conduction component and the bone conduction component, that is, the bone conduction component and the air conduction component are lower than the bone conduction hearing threshold and the air conduction hearing threshold of the user, but the bone conduction division and the air conduction component are superposed and can be heard by the patient, so that the perception threshold curve is not rectangular, that is, the upper right corner of the curve is not a right angle, but is an arc angle, the superposition effect of the bone conduction component and the air conduction component is considered, and the perception threshold curve obtained through the formula (9) can reflect the perception threshold of the user more accurately, thereby ensuring the accuracy of the hearing threshold of the user after hearing assistance of the bone conduction hearing aid.

Step 1320, determining the hearing threshold of the user after hearing assistance by the bone conduction hearing aid according to the perception threshold curve, the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve.

In some embodiments, step 1320 may be performed by processing module 220.

In some embodiments, the processing module 220 may determine the threshold of the user after hearing with the bone conduction hearing aid, for example, the left ear, by equation (10) based on the perception threshold curve, the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold, the bone conduction component input-output curve:

The hearing threshold of the left ear after the user hearing aid through the bone conduction hearing aid can be obtained through the formula (10), and similarly, the hearing threshold of the right ear after the user hearing aid through the bone conduction hearing aid can be obtained through the formula (10).

Some embodiments of the present disclosure provide for a reduction in the perceived threshold based on the superposition of bone conduction and air conduction components, and further increase in the accuracy of the determined threshold using a perceived threshold curve when determining the threshold of a user after hearing with a bone conduction hearing aid.

In some embodiments, determining the threshold of the user after hearing assistance by the bone conduction hearing aid based on the air conduction threshold, the air conduction component input-output curve, the bone conduction threshold, the bone conduction component input-output curve may comprise: the hearing threshold of the user after hearing assistance by the bone conduction hearing aid is determined based on the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold, the bone conduction component input-output curve and a machine learning model which is trained. The machine learning model for training can be obtained by training multiple groups of samples (bone conduction hearing threshold, air conduction hearing threshold, time difference of air conduction component relative to bone conduction component, air conduction component input-output curve and bone conduction component input-output curve of different users). In some embodiments, the machine learning model may include, but is not limited to, a linear regression model (e.g., simple linear regression, ridge regression, lasso regression, elastic network regression, bayesian ridge regression, least squares regression, quantile regression), a neural network model, and the like.

When sound is transmitted into the cochlea, the cochlea can convert the acoustic signal into an electrical signal, which is transmitted to the auditory center. When the two ears have electric signals input at the same time, a binaural loudness superposition effect is generated, and the hearing threshold of the user is further reduced due to the binaural loudness superposition effect. Based on this, in order to more accurately determine the hearing threshold after hearing through the bone conduction hearing aid, in some embodiments, the hearing threshold evaluation method after hearing through the bone conduction hearing aid may further include: and determining hearing aid gain according to the corrected hearing threshold of the user sound field and the corrected hearing threshold after hearing assistance of the bone conduction hearing aid. Details regarding the determination of the hearing aid gain can be found in fig. 14 and its description.

Fig. 14 is an exemplary flow chart for determining hearing aid gain according to some embodiments of the present description. In some embodiments, the process 1500 may be performed by the processing device 110. As shown in fig. 14, the process 1500 may include the steps of:

step 1510, the user's acoustic field hearing threshold is modified.

In some embodiments, step 1510 may be performed by threshold correction module 250.

The sound field hearing threshold may refer to the minimum sound field source intensity that a human ear just can hear when broadcasting by a sound field source in a sound field. The sound field sound source intensity may be calibrated at the center position of the human head. In some embodiments, the sound field thresholds may include a left ear sound field threshold and a right ear sound field threshold. In some embodiments, the sound field hearing threshold may include a bone conduction hearing threshold and a gas conduction hearing threshold.

In some embodiments, threshold modification module 250 may use a binaural model to fit to modify the user's sound field threshold and determine a modified user's sound field threshold.

In some embodiments, threshold modification module 250 may modify the user's sound field threshold based on the difference between the user's left and right ear sound field thresholds and the first modification, and determine a modified user's sound field threshold. For example, threshold modification module 250 may subtract the first modifier from the minimum of the left and right ear sound field thresholds of the user to determine a modified user sound field threshold.

The first correction amount may refer to a correction amount corresponding to a difference between the left ear sound field hearing threshold and the right ear sound field hearing threshold of the user. The first correction amount may be determined by searching a preset first table for a value corresponding to a difference between the different left and right ear sound field thresholds. The preset first table may be set based on experience.

Step 1520, the hearing threshold after hearing assistance by the bone conduction hearing aid is modified. In some embodiments, step 1520 may be performed by threshold correction module 250.

In some embodiments, the threshold correction module 250 may use a binaural model to fit to correct the threshold after hearing by the bone conduction hearing aid to determine a corrected threshold after hearing by the bone conduction hearing aid.

In some embodiments, the threshold correction module 250 may correct the threshold after hearing through the bone conduction hearing aid based on a minimum of the threshold of the left ear after hearing through the bone conduction hearing aid and the threshold of the right ear after hearing through the bone conduction hearing aid, and the second correction, and determine the corrected threshold after hearing through the bone conduction hearing aid. For example, the threshold correction module 250 may subtract the second correction amount from the difference between the threshold of the left ear after hearing through the bone conduction hearing aid and the threshold of the right ear after hearing through the bone conduction hearing aid to determine a corrected threshold after hearing through the bone conduction hearing aid.

The second correction amount may be a correction amount corresponding to a difference between a threshold of the left ear after hearing assistance by the bone conduction hearing aid and a threshold of the right ear after hearing assistance by the bone conduction hearing aid. The second correction amount may be determined by looking up a value corresponding to a difference between the hearing threshold of the left ear after hearing assistance by the bone conduction hearing aid and the hearing threshold of the right ear after hearing assistance by the bone conduction hearing aid in a preset second table. The preset second table may be set based on experience.

Step 1530, determining hearing aid gain based on the modified hearing threshold of the user's sound field and the modified hearing threshold of the bone conduction hearing aid. In some embodiments, step 1530 may be performed by processing module 220.

In some embodiments, the processing module 220 may subtract the modified hearing threshold of the user's sound field from the modified hearing threshold of the bone conduction hearing aid to determine the hearing aid gain. For example, the modified user sound field threshold is 50dBHL, the modified hearing threshold after hearing by the bone conduction hearing aid is 45dBHL, and the processing module 220 may determine the hearing aid gain to be 5dB.

Some embodiments of the present description may further improve the accuracy of the determined hearing threshold by modifying the hearing threshold of the user's sound field and the hearing threshold after hearing by the bone conduction hearing aid, such that a more accurate hearing gain may be determined, based on the binaural loudness superposition effect that may reduce the hearing threshold of the user.

As shown in fig. 15, in some embodiments, the acquisition module may acquire a bone conduction threshold (e.g., left ear masked bone conduction threshold, right ear masked bone conduction threshold, left ear unmasked threshold, right ear unmasked threshold) of the user, a gas conduction threshold (e.g., left ear gas conduction threshold, right ear gas conduction threshold), and the content of the bone conduction threshold and gas conduction threshold of the user may be referred to as described elsewhere in this specification, and will not be described herein.

In some embodiments, the obtaining module may obtain the bone conduction component input-output curve BL1 and the bone conduction component input-output curve BR1 based on preset parameters of the bone conduction hearing aid, input the curves BL1 and BR1 to the bone conduction component R-L pair transmission correction module BTRL, and may obtain the bone conduction component output BL2; the bone conduction component output BR2 can be obtained by inputting the curves BL1 and BR1 to the bone conduction component L-R pair transfer correction module BTLR. The bone conduction component input-output curve BL1 and the bone conduction component input-output curve BR1 here correspond to the bone conduction component input-output curves in the other embodiments of the present specification, and the bone conduction component output BL2 and the bone conduction component output BR2 correspond to the corrected bone conduction output curves in the other embodiments of the present specification.

In some embodiments, the obtaining module may obtain the air conduction component input-output curve AL1 and the air conduction component input-output curve AR1 of the bone conduction hearing aid based on the preset parameters of the bone conduction hearing aid, and input the air conduction component input-output curve AL1 and the air conduction component input-output curve AR1 into the sound field air conduction input-output curve correction module SRL and the sound field air conduction input-output curve correction module SRR, to obtain the air conduction component output AL2 and the air conduction component output AR2, respectively. The sound field air guide input output curve correction module SRL may be used to correct the air guide component received at the left ear, and the sound field air guide input output curve correction module SRR may be used to correct the air guide component received at the right ear, where the influence of the external sound field is considered to correct the air guide component at the left ear and the bone guide component at the right ear. The air conduction component input-output curve AL1 and the air conduction component output AR1 here correspond to air conduction component input-output curves (for example, left ear air conduction component before correction, right ear air conduction component before correction) in other embodiments of the present specification. The air conduction component output AL2 corresponds to the corrected left-ear air conduction component AL2 in the other embodiments of the present specification, and the air conduction component output AR2 corresponds to the corrected right-ear air conduction component AR2 in the other embodiments of the present specification.

The perception threshold curve simulation module STL may derive a perception threshold curve for the left ear based on the left ear bone conduction threshold (e.g., left ear masking bone conduction threshold) and the left ear air conduction threshold of the acquisition module, and the perception threshold curve simulation module STR may derive a perception threshold curve for the right ear based on the right ear bone conduction threshold (e.g., right ear masking bone conduction threshold) and the right ear air conduction threshold of the acquisition module. The post-hearing-aid sound field threshold analysis module TAL of the left ear may determine a post-hearing-aid threshold ASFTL of the left ear based on the perception threshold curve of the left ear, the bone conduction component output BL2, the air conduction component output AL 2. The right ear post-hearing field threshold analysis module TAR may determine a right ear post-hearing threshold ASFTR based on a perception threshold curve of the right ear, the bone conduction component output BR2, and the air conduction component output AR 2.

Wherein the perception threshold curve simulation module STL and the perception threshold curve simulation module STR may correspond to the perception threshold curve simulation module 240 in fig. 2, and the left ear post-hearing sound field threshold analysis module TAL and the right ear post-hearing sound field threshold analysis module TAR may correspond to the threshold correction module 250 in fig. 2.

As shown in fig. 15, the binaural pre-hearing/post-hearing field threshold analysis module may determine a binaural post-hearing threshold ABSFT with the left-ear post-hearing field threshold analysis module TAL and the right-ear post-hearing field threshold analysis module TAR, and the binaural hearing gain analysis module may determine a binaural hearing gain ASFG with the binaural pre-hearing/post-hearing field threshold analysis module.

Wherein the binaural pre-hearing/post-hearing field threshold analysis module may correspond to the processing module 220 of fig. 2, and the binaural pre-hearing/post-hearing field threshold analysis module may correspond to the processing module 220 of fig. 2.

Further content regarding the various modules described above that derive output based on inputs may be found elsewhere in this specification.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations of the present application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this application, and are therefore within the spirit and scope of the exemplary embodiments of this application.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present application may be combined as suitable.

Furthermore, those skilled in the art will appreciate that the various aspects of the invention are illustrated and described in the context of a number of patentable categories or circumstances, including any novel and useful procedures, machines, products, or materials, or any novel and useful modifications thereof. Accordingly, aspects of the present application may be performed entirely by hardware, entirely by software (including firmware, resident software, micro-code, etc.) or by a combination of hardware and software. The above hardware or software may be referred to as a "data block," module, "" engine, "" unit, "" component, "or" system. Furthermore, aspects of the present application may take the form of a computer product, comprising computer-readable program code, embodied in one or more computer-readable media.

The computer storage medium may contain a propagated data signal with the computer program code embodied therein, for example, on a baseband or as part of a carrier wave. The propagated signal may take on a variety of forms, including electro-magnetic, optical, etc., or any suitable combination thereof. A computer storage medium may be any computer readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code located on a computer storage medium may be propagated through any suitable medium, including radio, cable, fiber optic cable, RF, or the like, or a combination of any of the foregoing.

The computer program code necessary for operation of portions of the present application may be written in any one or more programming languages, including an object oriented programming language such as Java, scala, smalltalk, eiffel, JADE, emerald, C ++, c#, vb net, python, etc., a conventional programming language such as C language, visual Basic, fortran 2003, perl, COBOL 2002, PHP, ABAP, dynamic programming languages such as Python, ruby and Groovy, or other programming languages, etc. The program code may execute entirely on the user's computer or as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any form of network, such as a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet), or the use of services such as software as a service (SaaS) in a cloud computing environment.

Furthermore, the order in which the elements and sequences are presented, the use of numerical letters, or other designations are used in the application and are not intended to limit the order in which the processes and methods of the application are performed unless explicitly recited in the claims. While certain presently useful inventive embodiments have been discussed in the foregoing disclosure, by way of various examples, it is to be understood that such details are merely illustrative and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements included within the spirit and scope of the embodiments of the present application. For example, while the system components described above may be implemented by hardware devices, they may also be implemented solely by software solutions, such as installing the described system on an existing server or mobile device.

Likewise, it should be noted that in order to simplify the presentation disclosed herein and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure, however, is not intended to imply that more features than are presented in the claims are required for the subject application. Indeed, less than all of the features of a single embodiment disclosed above.

In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations that may be employed in some embodiments to confirm the breadth of the range, in particular embodiments, the setting of such numerical values is as precise as possible.

Each patent, patent application publication, and other material, such as articles, books, specifications, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety. Except for application history documents that are inconsistent or conflicting with the present application, documents that are currently or later attached to this application for which the broadest scope of the claims to the present application is limited. It is noted that the descriptions, definitions, and/or terms used in the subject matter of this application are subject to such descriptions, definitions, and/or terms if they are inconsistent or conflicting with such descriptions, definitions, and/or terms.

Finally, it should be understood that the embodiments described herein are merely illustrative of the principles of the embodiments of the present application. Other variations are also possible within the scope of this application. Thus, by way of example, and not limitation, alternative configurations of embodiments of the present application may be considered in keeping with the teachings of the present application. Accordingly, embodiments of the present application are not limited to only the embodiments explicitly described and depicted herein.

Claims

1. A method of threshold assessment after hearing assistance by a bone conduction hearing aid, the method comprising:

Acquiring a bone conduction hearing threshold of a user;

acquiring a bone conduction component input-output curve of the bone conduction hearing aid; and

and determining the hearing threshold of the user after hearing assistance of the bone conduction hearing aid according to the bone conduction hearing threshold of the user and the bone conduction component input-output curve of the bone conduction hearing aid.

2. The method of claim 1, wherein the obtaining the bone conduction quantity input-output curve comprises:

acquiring a bone conduction output curve of a left ear and a bone conduction output curve of a right ear of a user;

and correcting the bone conduction component intensities in the bone conduction output curve of the left ear and the bone conduction output curve of the right ear to obtain a corrected bone conduction output curve of the left ear and a corrected bone conduction output curve of the right ear.

3. The hearing threshold assessment method of claim 2, wherein the modifying bone conduction component intensities in the bone conduction output curve of the left ear and the bone conduction output curve of the right ear comprises:

adding the bone conduction component of the left ear to the bone conduction component intensity of the bone conduction output curve of the left ear; and

and adding the bone conduction component of the left ear to the bone conduction component of the right ear to the bone conduction component intensity of the bone conduction output curve of the right ear.

4. The hearing threshold assessment method of claim 1, further comprising:

acquiring a user air guide hearing threshold;

acquiring an air conduction component input-output curve of the bone conduction hearing aid, wherein the determining a hearing threshold of the user after hearing assistance by the bone conduction hearing aid comprises:

and determining the hearing threshold of the user after hearing assistance of the bone conduction hearing aid according to the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve.

5. The method of claim 4, wherein said determining the threshold of the user after hearing aid hearing based on the air-conduction threshold, the air-conduction component input-output curve, the bone-conduction threshold, and the bone-conduction component input-output curve comprises:

acquiring perception threshold curves of bone conduction sound and air conduction sound of a user;

and determining the hearing threshold of the user after hearing assistance of the bone conduction hearing aid according to the perception threshold curve, the air conduction hearing threshold, the air conduction component input-output curve, the bone conduction hearing threshold and the bone conduction component input-output curve.

6. The hearing threshold assessment method of claim 5, further comprising:

correcting the hearing threshold of the sound field of the user;

correcting the hearing threshold after hearing assistance of the bone conduction hearing aid; and

and determining hearing aid gain according to the corrected hearing threshold of the user sound field and the corrected hearing threshold of the bone conduction hearing aid after hearing aid.

7. A hearing threshold assessment system after hearing assistance via a bone conduction hearing aid, the system comprising:

a bone conduction component acquisition module configured to acquire a bone conduction hearing threshold of a user and a bone conduction component input-output curve of the bone conduction hearing aid; and

a processing module configured to determine a hearing threshold of the user after hearing aid by the bone conduction hearing aid based on the bone conduction hearing threshold of the user and a bone conduction component input-output curve of the bone conduction hearing aid.

8. The hearing threshold assessment system of claim 7, wherein the obtaining the bone conduction component input-output curve comprises:

the processing module comprises a bone conduction component transmission correction module and is configured to correct the bone conduction component intensity in the bone conduction output curve of the left ear and the bone conduction output curve of the right ear so as to obtain a corrected bone conduction output curve of the left ear and a corrected bone conduction output curve of the right ear.

9. The hearing threshold assessment system of claim 8, wherein the modifying bone conduction component intensities in the left and right ear bone conduction output curves comprises:

the bone conduction component pair transmission correction module adds the bone conduction component pair transmission of the right ear and the left ear to the bone conduction component strength of the bone conduction output curve of the left ear; and

10. The hearing threshold assessment system of claim 9, wherein the system further comprises an air conduction component acquisition module configured to:

acquiring a user air guide hearing threshold;

11. The hearing threshold assessment system of claim 10, wherein the system further comprises a perception threshold curve simulation module configured to:

Acquiring perception threshold curves of bone conduction sound and air conduction sound of a user; and

12. The hearing threshold assessment system of claim 11, wherein the system further comprises a hearing threshold correction module configured to:

correcting the hearing threshold of the sound field of the user;

13. A hearing threshold assessment device after hearing assistance by a bone conduction hearing aid, the device comprising a processor and a memory; the memory is configured to store instructions that, when executed by the processor, perform operations corresponding to the method of threshold assessment after hearing assistance by a bone conduction hearing aid according to any one of claims 1 to 6.

14. A computer readable storage medium storing computer instructions which, when read by a computer in the storage medium, the computer operates the hearing threshold assessment method of any one of claims 1 to 6 after hearing by a bone conduction hearing aid.