Tinnitus diagnosis module and tinnitus treatment system

Abstract

A tinnitus diagnosis module and a tinnitus treatment system belong to the technical field of tinnitus diagnosis and treatment. A tinnitus diagnosis module includes: a spectrum matching module, which is used to output a spectrum test signal with a fixed loudness frequency change to match the tinnitus frequency; a loudness matching module, which is used to output a loudness test signal with a fixed loudness frequency change to match the tinnitus loudness; a Chirp signal generation module, which is used to generate a Chirp signal, wherein the Chirp signal is set between two spectrum test signals with fixed loudness frequency changes and is continuous with the two spectrum test signals. By adding a Chirp signal continuous with the two spectrum test signals between the two spectrum test signals, the present application can adjust the frequency modulation rate according to the sensitivity of the human ear to frequency changes, thereby improving the speed and accuracy of tinnitus sound type diagnosis.

Description

Technical Field

[0001] The present invention belongs to the technical field of tinnitus diagnosis and treatment, and in particular relates to a tinnitus diagnosis module and a tinnitus treatment system. Background Art

[0002] Tinnitus is a common symptom characterized by buzzing, hissing or other sounds in the ears without any external sound stimulation.

[0003] The treatment of tinnitus varies depending on the cause. For example, for tinnitus caused by ear infection or inflammation, antibiotics or anti-inflammatory drugs can be used for treatment; for tinnitus caused by hearing loss, hearing aids or other hearing assistive devices can be used. For tinnitus caused by systemic diseases such as high blood pressure or diabetes, the primary disease needs to be controlled. In addition, some non-drug treatments such as cognitive behavioral therapy, sound therapy, and relaxation training can also help relieve tinnitus symptoms.

[0004] Among them, sound therapy is a treatment method that relieves tinnitus symptoms by providing external sound stimulation. Music therapy, as a type of sound therapy, allows patients to relieve tinnitus symptoms by listening to music. The principle of music therapy is to regulate the patient's psychological state and physiological response through elements such as music rhythm, melody and harmony, thereby reducing the impact of tinnitus on the patient. This method can include listening to your favorite music, relaxing music or specialized therapeutic music.

[0005] For example, a Chinese patent with publication number CN113380215B discloses a method for generating notched music for tinnitus treatment, which can generate sound data based on original natural sounds for different tinnitus sounds of individuals. It can be effectively used for high and low frequency tinnitus, reduce the patient's perception of tinnitus, and achieve the effect of treating and improving tinnitus.

[0006] When generating tinnitus treatment music, it is generally necessary to obtain the tinnitus frequency and tinnitus loudness.

[0007] For example, a Chinese patent with publication number CN110960351B and the applicant is the Affiliated Eye, Ear, Nose and Throat Hospital of Fudan University, which discloses a method, medium, device and tinnitus treatment instrument for generating tinnitus treatment music. The method for generating tinnitus treatment music includes: obtaining a tinnitus frequency; calculating a modulation frequency band range according to the tinnitus frequency; enhancing and modulating a pure music file within the modulation frequency band to obtain tinnitus treatment music with a frequency and strength that constantly changes and always surrounds an area adjacent to the tinnitus frequency; obtaining tinnitus loudness; and setting the volume of the tinnitus treatment music according to the tinnitus loudness matching.

[0008] However, the current tinnitus matching system, when adjusting the frequency of the test sound, plays the test sound intermittently or suddenly, and fails to fully consider the hearing characteristics of the human ear, making it difficult for patients to accurately compare the difference before and after the test sound is adjusted.

[0009] Therefore, it is urgent to develop a tinnitus diagnosis module and a tinnitus treatment system to solve the problems in the prior art. Summary of the invention

[0010] The present invention aims to provide a tinnitus diagnosis module and a tinnitus treatment system, which provide a smooth transition by adding a continuous chirp signal between two spectrum test signals, so as to solve the problem in the above background technology that it is difficult for patients to accurately compare the difference in test sounds due to the discontinuity or mutation of the test sounds.

[0011] In order to solve the above technical problems, the specific technical solutions of the present invention are as follows:

[0012] A tinnitus diagnosis module, comprising:

[0013] A spectrum matching module is used to output a spectrum test signal with a fixed loudness frequency change to match the tinnitus frequency;

[0014] A loudness matching module, used for outputting a loudness test signal with a fixed frequency and a variable loudness to match the tinnitus loudness;

[0015] The Chirp signal generating module is used to generate a Chirp signal, wherein the Chirp signal is set between two frequency spectrum test signals with fixed loudness frequency changes and is continuous with the two frequency spectrum test signals.

[0016] Further, the Chirp signal has a signal length of A complex array of sampling points;

[0017] The sampling point corresponds to the time The calculation formula is as follows:

[0018] ;

[0019] in, is the time corresponding to the sampling point, is the sampling point number, is the sampling rate;

[0020] The signal value at each sampling point is calculated as follows:

[0021] ;

[0022] in, is the signal value at the sampling point, is the frequency corresponding to the sampling point, is the time corresponding to the sampling point, is an imaginary unit;

[0023] The calculation formula for the frequency corresponding to each sampling point is as follows:

[0024] ;

[0025] in, is the frequency corresponding to the sampling point, is the starting frequency, is the frequency change rate of this regulation, is the time corresponding to the sampling point;

[0026] The calculation formula of the frequency change rate of this adjustment is as follows:

[0027] ;

[0028] in, is the frequency change rate of this regulation, is the base value of frequency change, and As parameters, is the hearing threshold change rate;

[0029] The calculation formula of the hearing threshold conversion rate is as follows:

[0030] ;

[0031] in, is the hearing threshold change rate, The end frequency The hearing threshold, is the starting frequency Hearing threshold; is the starting frequency, is the ending frequency.

[0032] Further, the calculation formula of the Chirp signal length is as follows:

[0033] ;

[0034] in, is the signal length, is the sampling rate, is the total time of frequency change;

[0035] The total time of the frequency change is calculated as follows:

[0036] ;

[0037] in, is the total time of frequency change, is the starting frequency, is the end frequency, is the frequency change rate of this adjustment.

[0038] Furthermore, it also includes a hyperbolic tangent signal generating module, which is used to output a hyperbolic tangent function signal, and the hyperbolic tangent function signal is set between two loudness test signals with fixed frequency and variable loudness and is continuous with the two loudness test signals.

[0039] Further, the time point of the hyperbolic tangent function signal is determined according to the time frame rate;

[0040] The calculation formula for the sound intensity at a time point is as follows:

[0041] ;

[0042] in, is the sound intensity at the current time point, is the initial sound intensity; is the target sound intensity; ' is the current time point; The time point when the transition starts; is a parameter that controls the transition speed.

[0043] Furthermore, the parameter controlling the transition speed is equal to the inverse of the total time.

[0044] A tinnitus diagnosis and treatment system comprises a tinnitus treatment module and the tinnitus diagnosis module, wherein the tinnitus treatment module is used to output a treatment music signal according to the tinnitus frequency and tinnitus loudness obtained by the tinnitus diagnosis module.

[0045] Furthermore, the tinnitus treatment module includes:

[0046] A music playing unit, used for playing therapeutic music;

[0047] An audio processing unit, used for monitoring the volume of the therapeutic music in real time and adjusting the signal of the therapeutic music;

[0048] The anti-phase sound generating unit is used to construct and output an anti-phase sound wave signal opposite to the tinnitus sound when the therapeutic music sound is too small or silent; the audio processing unit adjusts the signal of the therapeutic music according to the anti-phase sound wave signal.

[0049] Further, the anti-phase sound generating unit is constructed to output an anti-phase sound wave signal opposite to the tinnitus sound, including the following:

[0050] Get the speaker sound coefficient;

[0051] Get real-time ear canal sound;

[0052] Acquire tinnitus sound according to the speaker sound coefficient and the real-time ear canal sound;

[0053] According to the tinnitus sound, an anti-phase sound wave signal is output.

[0054] Furthermore, it also includes a hearing detection module, which is used to test the hearing function and measure the hearing threshold of the human ear.

[0055] The present invention has the following advantages:

[0056] (1) The present application provides a smooth transition by adding a continuous chirp signal between two spectrum test signals, so that the tinnitus diagnostic device based on the present application can adjust the frequency modulation rate according to the sensitivity of the human ear to frequency changes, thereby improving the speed and accuracy of tinnitus sound type diagnosis.

[0057] (2) Furthermore, a hyperbolic tangent signal generation module is provided to insert a hyperbolic tangent function signal that is continuous with the two loudness test signals between the two loudness test signals, so as to provide a smooth transition, avoid sudden changes in sound intensity, improve patient comfort, enhance patient attention, and improve test accuracy.

[0058] (3) By setting up an anti-phase sound generation unit, a sound wave opposite to the tinnitus sound can be generated in real time and output to cancel out the tinnitus sound. This can effectively suppress tinnitus when the music sound changes, thereby improving the effect of tinnitus treatment.

[0059] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a schematic diagram of the overall structure of the tinnitus diagnosis and treatment system of this application;

[0061] Figure 2 Graph of the h(x) function for this application. DETAILED DESCRIPTION

[0062] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0063] A tinnitus diagnosis module, comprising:

[0064] A spectrum matching module is used to output a spectrum test signal with a fixed loudness frequency change to match the tinnitus frequency;

[0065] A loudness matching module, used for outputting a loudness test signal with a fixed frequency and a variable loudness to match the tinnitus loudness;

[0066] A Chirp signal generating module, used for outputting a Chirp signal, wherein the Chirp signal is set between two frequency spectrum test signals with fixed loudness frequency changes and is continuous with the two frequency spectrum test signals;

[0067] A hyperbolic tangent signal generating module is used to output a hyperbolic tangent function signal, wherein the hyperbolic tangent function signal is arranged between two loudness test signals with fixed frequency and variable loudness and is continuous with the two loudness test signals.

[0068] The matching of tinnitus frequency generally includes the following:

[0069] S11: Ensure that the patient is in a quiet, distraction-free testing environment; instruct the patient on how to use a feedback device, such as a button or keyboard, to indicate when the test sound they hear is most similar to the tinnitus sound.

[0070] S12: Set the frequency range of the test sound, usually from low frequency to high frequency, for example, from 125 Hz to 8000 Hz.

[0071] S13: Play a series of pure tones with fixed loudness, switch the frequencies so that the frequencies change gradually, and ask the patient to listen carefully; each time a frequency is played, ask the patient whether the sound is close to the sound of their tinnitus.

[0072] S14: When the patient indicates that a certain frequency is close to the tinnitus sound, a more detailed scan is performed near the frequency to find the sound closest to the tinnitus frequency. The frequency adjustment can be performed in smaller steps, such as 10 Hz each time.

[0073] S15: Once the closest frequency is found, ask the patient to confirm whether this is the frequency of their perceived tinnitus. If necessary, the above steps can be repeated to further refine the match.

[0074] In this embodiment, the spectrum matching module is used to output a series of pure tone test signals with fixed loudness and frequency changes, so as to obtain the patient's tinnitus frequency according to the patient's feedback. The frequency change can be from low frequency to high frequency, and can also be set as needed. Specifically, the spectrum matching module can use existing technology, which will not be described in detail in this application.

[0075] Optionally, the tinnitus diagnosis module further includes:

[0076] Feedback module, used to obtain feedback from patients;

[0077] A test sound setting module is used to set the frequency and loudness of the test sound; the spectrum matching module or the loudness matching module outputs a corresponding spectrum test signal or loudness test signal according to the set frequency and loudness;

[0078] The playing module is used to play the corresponding test sound according to the spectrum test signal, the loudness test signal, the Chirp signal or the hyperbolic tangent function signal.

[0079] The chirp signal is set between two frequency spectrum test signals with fixed loudness frequency changes and is continuous with the two frequency spectrum test signals, as follows:

[0080] The starting frequency of the Chirp signal The frequency of the spectrum test signal before the Chirp signal, the end frequency of the Chirp signal is the frequency of the spectrum test signal following the Chirp signal, and the Chirp signal, the previous spectrum test signal and the subsequent spectrum test signal are played continuously without interruption.

[0081] Experiments show that the auditory characteristics of the human ear are that when the frequency is constant, the attention is low; when the frequency changes, the attention changes with the frequency. For details, please refer to: Ye Yulin, Yang Bo, Mo Jianhua, et al. Top-down auditory saliency attention model based on speaker identification [J]. Computer Systems Applications, 2017, 26(07): 252-257. DOI: 10.15888 / j.cnki.csa.005814. Therefore, the present application sets a signal with a continuously changing frequency between the two spectrum test signals, which is continuous with the two spectrum test signals, which helps to improve the patient's attention and improve the accuracy of the test.

[0082] Furthermore, the present application is designed based on the auditory characteristics of the human ear, and based on the attention conclusion, a frequency response transformation function is designed, such as Figure 2 , is a function graph. When the frequency starts to change, the frequency change rate is as small as possible to make the slope of the curve small, the attention degree is small, and it is easier for the human ear to accept; the terminal curve is the same, the two ends are as smooth as possible, and the change rate of the middle section is higher than that of the two ends.

[0083] Specifically, in this embodiment, the Chirp signal has a signal length of A complex array of sampling points.

[0084] The Chirp signal is defined by the sampling point corresponding time and the signal value of the sampling point.

[0085] The sampling point corresponds to the time The calculation formula is as follows:

[0086] ;

[0087] in, is the time corresponding to the sampling point; is the sampling point number, is the variable; is the sampling rate.

[0088] The signal value at each sampling point is calculated as follows:

[0089] ;

[0090] in, is the signal value at the sampling point, is the frequency corresponding to the sampling point, is the time corresponding to the sampling point, Is an imaginary unit.

[0091] The calculation formula for the frequency corresponding to each sampling point is as follows:

[0092] ;

[0093] in, is the frequency corresponding to the sampling point, is the starting frequency, is the frequency change rate of this regulation, is the time corresponding to the sampling point.

[0094] The calculation formula of the frequency change rate of this adjustment is as follows:

[0095] ;

[0096] in, is the frequency change rate of this regulation, is the base value of frequency change, and As parameters, is the hearing threshold change rate; where, and It is a parameter used to make the change curve smooth and the sound change not drastic. The design criteria are based on the patient's acceptance. , ; is the starting frequency To end frequency The hearing threshold change rate.

[0097] The calculation formula of the hearing threshold conversion rate is as follows:

[0098] ;

[0099] in, is the hearing threshold change rate, The end frequency The hearing threshold, is the starting frequency Hearing threshold; is the starting frequency, is the ending frequency.

[0100] The Chirp signal length can be set as needed, or calculated using the following formula:

[0101] ;

[0102] in, is the signal length, is the sampling rate, is the total time of frequency change;

[0103] The total time of the frequency change is calculated as follows:

[0104] ;

[0105] in, is the total time of frequency change, is the starting frequency, is the end frequency, is the frequency change rate of this adjustment.

[0106] Optionally, the Chirp signal generation module obtains the Chirp signal through the following steps:

[0107] S21: Get the starting frequency With end frequency ;

[0108] S22: According to the starting frequency With end frequency , calculate the frequency change rate ;

[0109] S23: According to the frequency change rate , define the Chirp signal formula;

[0110] S24: Generate and output Chirp signal.

[0111] The generation of the Chirp signal in S24 comprises the following steps:

[0112] S241: Create a Complex array of To store Chirp signal;

[0113] S242: Calculate the signal value of each sampling point.

[0114] Table 1: Human hearing chart.

[0115]

[0116] As shown in Table 1, it is a human ear hearing chart of a patient, including the test frequency and the hearing threshold of the affected ear corresponding to the frequency, wherein the unit of the hearing threshold of the affected ear is dB HL. In this embodiment, the spectrum matching module sequentially outputs a spectrum test signal with a fixed frequency change of loudness from 125 Hz to 8 kHz, and obtains the patient's tinnitus frequency according to the patient's feedback.

[0117] Between two frequencies, for example, 1kHz and 2kHz, the corresponding Chirp signal is calculated as follows:

[0118] Start frequency ; End frequency .

[0119] The hearing threshold change rate is as follows:

[0120] .

[0121] The frequency change rate of this adjustment is as follows:

[0122] ;

[0123] .

[0124] In this embodiment, when x<0, it means that the hearing of the next frequency is better than the hearing of the current frequency, and is more sensitive to sound changes. The rate of change needs to be slowed down to make it easier for the human ear to accept. Therefore, the function value Less than 1, frequency change rate is attenuated; when x > 0, it means that the hearing of the next frequency is worse than the hearing of the current frequency, and it is insensitive to sound changes. It is necessary to speed up the change rate and improve the test efficiency, so the function value Greater than 1, frequency change rate is enhanced.

[0125] Therefore, the present application uses the above formula to achieve slowing down the frequency change rate at relatively sensitive frequencies and speeding up the change rate at insensitive frequencies, with better results.

[0126] The process of generating a Chirp signal includes the following:

[0127] for arrive Each sampling point of For example, the sampling point corresponding time is calculated by the following formula:

[0128] .

[0129] The frequency corresponding to the sampling point is calculated by the following formula:

[0130] .

[0131] The signal value at the sampling point is calculated using the following formula:

[0132] .

[0133] Repeat the above calculation until a complete to Chirp signal array.

[0134] Through the above steps, a arrive Chirp signal with piecewise linear variation.

[0135] The output loudness fixed frequency changing spectrum test signal to match the tinnitus frequency includes the following:

[0136] Matching the loudness of tinnitus generally includes the following steps:

[0137] S31: Frequency setting.

[0138] After tinnitus frequency matching is completed, the frequency of the test sound is set to the tinnitus frequency determined by the patient.

[0139] S32: Strength adjustment.

[0140] Start at a lower intensity, switch intensities, and gradually increase the intensity of the test sound.

[0141] Ask the patient whether the intensity of the test sound matches the intensity of their tinnitus.

[0142] S33: Fine adjustment.

[0143] When the patient indicated that the test sound was close to the loudness of the tinnitus, finer loudness adjustments were made.

[0144] Smaller loudness steps can be used, such as 1 dB adjustments.

[0145] S34: Confirm the match.

[0146] When the patient confirms that the loudness of the test sound matches the loudness of the tinnitus, the loudness value is recorded.

[0147] The accuracy of the match can be verified through multiple tests.

[0148] S35: Record the result.

[0149] The matched tinnitus frequency and loudness were recorded in the patient's diagnostic report.

[0150] Throughout the process, it is important to ensure that the patient can clearly understand the instructions and stay focused during the test. Testers should have professional knowledge and skills to ensure the accuracy and reliability of the test.

[0151] In this embodiment, the loudness matching module is used to output a series of pure tone test signals with fixed frequencies and loudness variations, so as to obtain the patient's tinnitus loudness according to the patient's feedback. The loudness variation can be from low to high, and can also be set as required. Specifically, the loudness matching module can use existing technology, which will not be described in detail in this application.

[0152] The hyperbolic tangent function signal adjusts the amplitude of the sound signal to provide a smooth transition, simulating the perception characteristics of the human ear to sound, thereby improving the accuracy of the patient's loudness matching.

[0153] The hyperbolic tangent function is defined as follows:

[0154] ;

[0155] in, is the hyperbolic tangent function, is the hyperbolic sine function; is the hyperbolic cosine function.

[0156] The hyperbolic tangent function can be adjusted using two parameters: slope and position. The slope determines how fast the function changes in the transition region, while the position parameter moves the function graph left or right.

[0157] The formula for adjusting the sound intensity using the hyperbolic tangent function is as follows:

[0158] ;

[0159] in, is the sound intensity at the current time point, is the initial sound intensity; is the target sound intensity; ' is the current time point, which is a variable; The time point when the transition starts; is the parameter to control the transition speed;

[0160] when hour, ,therefore .along with 'Increase, The value of the function will gradually increase to 1, resulting in Increases smoothly to .

[0161] when near hour, The value of the function is close to 0, so near , which is the original sound intensity.

[0162] when keep away hour, The value of the function is close to 1, so near , which is the target sound intensity.

[0163] Throughout the adjustment range, the function provides smooth transitions, avoiding abrupt changes in sound intensity.

[0164] In this way, the hyperbolic tangent function can help provide a more comfortable and natural listening experience in sound therapy or any scenario where smooth adjustments to sound are needed. This can be especially beneficial for patients with hearing loss or sensitivity to changes in sound.

[0165] Specifically, to ensure that the sound intensity changes smoothly within 2 seconds, appropriate parameters need to be selected. To control the speed of change of the hyperbolic tangent function, the steps are as follows:

[0166] S41: Determine the time frame rate; set the frame rate , in frames per second.

[0167] S42: Calculate the total number of frames; the change time is 2 seconds, so the total number of frames is .

[0168] S43: Selection value;

[0169] Hyperbolic tangent function exist The fastest changes are in the vicinity. As the value increases, the speed of change slows down. In order to complete the transition within 2 seconds, we can choose Make hour, is close to 1. Usually, we can take is the reciprocal of the total time T, that is . In this way, when 'Increase from 0 to hour, Will smoothly transition from 0 to 1.

[0170] S44: Obtain initialization parameters;

[0171] The original sound intensity ; Target sound intensity ; The time when the transition starts is usually 0; Frame rate Specifically, the original sound intensity is the sound intensity of a loudness test signal preceding the hyperbolic tangent function signal, and the target sound intensity is the sound intensity of a loudness test signal following the hyperbolic tangent function signal.

[0172] S45: Generate data array;

[0173] For each time frame (from 0 to 1.9, interval 0.1), calculate the corresponding sound intensity .

[0174] ;

[0175] in, is the sound intensity at the current time point, is the initial sound intensity; is the target sound intensity; is the variable at the current time point; The time point when the transition starts; is a parameter that controls the transition speed.

[0176] In this embodiment, the generated sound intensity data array is as follows:

[0177] [10,11.9738,13.7995,15.3705,16.6404,17.6159,18.3365,18.8535,19.2167,19.4681,19.6403,19.7574,19.8367,19.8903,19.9263,19.9505,19.9668,19.9777,19.9851,19.9899].

[0178] To smoothly transition the sound intensity values, this array can be used by sound processing software or hardware to control the audio output chip gain value to achieve the desired sound intensity adjustment.

[0179] A tinnitus diagnosis and treatment system, such as Figure 1 As shown, including:

[0180] Hearing detection module, used to measure the hearing threshold of human ears and provide a basis for diagnosing hearing diseases;

[0181] Tinnitus diagnosis module, used to obtain the patient's tinnitus frequency and tinnitus loudness;

[0182] The tinnitus treatment module is used to output a treatment music signal according to the tinnitus frequency and tinnitus loudness.

[0183] The hearing detection module is widely used in the inspection and diagnosis of hearing impairment, which is a prior art and will not be described in detail in this application. In this embodiment, the hearing detection module is mainly used to test the human ear hearing threshold and output a human ear audiogram, wherein the human ear audiogram includes multiple frequencies and hearing thresholds corresponding to the frequencies. The hearing threshold is the minimum sound intensity that the human ear can just hear.

[0184] The tinnitus treatment module comprises:

[0185] A music playing unit, used for playing therapeutic music;

[0186] An audio processing unit, used for monitoring the volume of the therapeutic music in real time and adjusting the signal of the therapeutic music;

[0187] The anti-phase sound generating unit is used to construct and output an anti-phase sound wave signal opposite to the tinnitus sound when the sound of the therapeutic music is too small or silent; the audio processing unit adjusts the signal of the therapeutic music according to the anti-phase sound wave signal.

[0188] In this embodiment, the playing of therapeutic music can share the aforementioned playing module.

[0189] In this embodiment, the treatment process of the music tinnitus treatment module includes the following:

[0190] S51: Music data analysis.

[0191] Analyze the therapeutic music data in segments, for example, analyze the data once every 100ms;

[0192] Perform a fast Fourier transform on each audio data segment to obtain the audio spectrum of the segment; optionally, if the audio spectrum of the segment contains a tinnitus spectrum, the spectrum of the audio data segment can be corrected to avoid highlighting the sound of the tinnitus part.

[0193] S52: When the volume of the therapeutic music is lower than the set threshold or the therapeutic music is switched, the anti-phase sound generation unit is triggered.

[0194] S53: Perform preliminary processing based on the pre-measured tinnitus sound signal, generate and output an anti-phase sound wave to suppress the tinnitus sound

[0195] The anti-phase sound generating unit comprises:

[0196] A sound collection module, used for collecting ear canal sound;

[0197] An anti-phase signal processing module is used to process the collected signal to generate an anti-phase sound wave signal;

[0198] The speaker module is used to output anti-phase sound waves.

[0199] The output anti-phase sound wave can share the aforementioned music playing unit.

[0200] The method of processing the collected signal to generate an anti-phase sound wave comprises the following steps:

[0201] Get the speaker sound coefficient ;

[0202] Get real-time ear canal sound ;

[0203] According to the loudspeaker sound coefficient and real-time ear canal sound , get the tinnitus sound ;

[0204] According to the tinnitus , and obtain the anti-phase sound wave.

[0205] Among them, real-time ear canal sound .

[0206] In this embodiment, the acquisition of the loudspeaker sound coefficient , including the following steps:

[0207] A single tone signal of known frequency is played in the ear canal through a speaker , where the single tone signal The spectrum of the sound does not overlap with the spectrum of the tinnitus sound;

[0208] Using a bandpass filter to remove tinnitus , get the filtered ear canal sound ;

[0209] According to the filtered ear canal sound , calculate the loudspeaker acoustic coefficient .

[0210] The formula for calculating the loudspeaker sound coefficient is as follows:

[0211] ;

[0212] in, To filter out the tinnitus sound, is the loudspeaker acoustic coefficient; is a single tone signal of known frequency.

[0213] The speaker sound coefficient and real-time ear canal sound , get the tinnitus sound ; Through the following formula:

[0214] ;

[0215] in, For tinnitus, For real-time ear canal sound, is the loudspeaker acoustic coefficient, is the current sound signal, Indicates time.

[0216] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

[0217] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tinnitus diagnosis module, characterized in that: include: A spectrum matching module is used to output a spectrum test signal with a fixed loudness frequency change to match the tinnitus frequency; A loudness matching module, used for outputting a loudness test signal with a fixed frequency and a variable loudness to match the tinnitus loudness; A Chirp signal generating module, used for generating a Chirp signal, wherein the Chirp signal is set between two frequency spectrum test signals with fixed loudness frequency changes and is continuous with the two frequency spectrum test signals; The Chirp signal has a signal length of A complex array of sampling points; The sampling point corresponds to the time The calculation formula is as follows: ； in, is the time corresponding to the sampling point, is the sampling point number, is the sampling rate; The signal value at each sampling point is calculated as follows: ； in, is the signal value at the sampling point, is the frequency corresponding to the sampling point, is the time corresponding to the sampling point, is an imaginary unit; The calculation formula for the frequency corresponding to each sampling point is as follows: ； in, is the frequency corresponding to the sampling point, is the starting frequency, is the frequency change rate of this regulation, is the time corresponding to the sampling point; The calculation formula of the frequency change rate of this adjustment is as follows: ； in, is the frequency change rate of this regulation, is the frequency change base value, and As parameters, is the hearing threshold change rate; The calculation formula of the hearing threshold conversion rate is as follows: ； in, is the hearing threshold change rate, The end frequency The hearing threshold, is the starting frequency Hearing threshold; is the starting frequency, is the ending frequency.

2. The tinnitus diagnosis module according to claim 1, characterized in that: The calculation formula of the Chirp signal length is as follows: ； in, is the signal length, is the sampling rate, is the total time of frequency change; The total time of the frequency change is calculated as follows: ； in, is the total time of frequency change, is the starting frequency, is the end frequency, is the frequency change rate of this adjustment.

3. The tinnitus diagnosis module according to claim 1 or 2, characterized in that: It also includes a hyperbolic tangent signal generation module, which is used to output a hyperbolic tangent function signal. The hyperbolic tangent function signal is set between two loudness test signals with fixed frequencies and varying loudness and is continuous with the two loudness test signals.

4. The tinnitus diagnosis module according to claim 3, characterized in that: The time point of the hyperbolic tangent function signal is determined according to the time frame rate; The calculation formula for the sound intensity corresponding to a time point is as follows: ； in, is the sound intensity at the current time point, is the initial sound intensity; is the target sound intensity; is the current time point; The time point when the transition starts; is a parameter that controls the transition speed.

5. The tinnitus diagnosis module according to claim 4, characterized in that: The parameter that controls the transition speed is equal to the inverse of the total time.

6. A tinnitus diagnosis and treatment system, characterized in that: It comprises a tinnitus treatment module and the tinnitus diagnosis module according to any one of claims 1 to 5, wherein the tinnitus treatment module is used to output a treatment music signal according to the tinnitus frequency and tinnitus loudness obtained by the tinnitus diagnosis module.

7. The tinnitus diagnosis and treatment system according to claim 6, characterized in that: The tinnitus treatment module comprises: A music playing unit, used for playing therapeutic music; An audio processing unit, used for real-time monitoring of the volume of the therapeutic music and adjusting the signal of the therapeutic music; The anti-phase sound generating unit is used to construct and output an anti-phase sound wave signal opposite to the tinnitus sound when the therapeutic music sound is too small or silent; the audio processing unit adjusts the signal of the therapeutic music according to the anti-phase sound wave signal.

8. The tinnitus diagnosis and treatment system according to claim 7, characterized in that: The structure of the anti-phase sound generating unit and the output of the anti-phase sound wave signal opposite to the tinnitus sound include the following: Get the speaker sound coefficient; Get real-time ear canal sound; Acquire tinnitus sound according to the speaker sound coefficient and the real-time ear canal sound; According to the tinnitus sound, an anti-phase sound wave signal is output.

9. The tinnitus diagnosis and treatment system according to claim 7, characterized in that: It also includes a hearing detection module, which is used to test the hearing function and measure the hearing threshold of the human ear.

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