TW202410871A - Ear canal device for electric signal detection, audio detection, and masking audio generation - Google Patents

Abstract

The present invention relates to an ear canal device for electric signal detection, audio detection, and masking audio generation. The ear canal device is adapted for a tinnitus patient and includes: two main bodies corresponding in shape to the outermost portion of human's external acoustic meatus; a control unit; a processing unit; two electric signal detection units provided on the two main bodies respectively and connected to the control unit and the processing unit; an audio unit connected to the control unit and including a masking audio generation member and an audio detection member; and a power source electrically connected to the control unit, the processing unit, the electric signal detection unit, and the audio unit. The electric signal detection unit detects a brainwave signal from the external acoustic meatus of a tinnitus patient's ear, and the masking audio generation member generates a masking audio to reduce tinnitus. On the other hand, the audio detection detects an audio signal from the external acoustic meatus of the tinnitus patient's ear to determine whether the tinnitus is pulsatile tinnitus or non-pulsatile tinnitus according to the audio signal.

Description

In-ear device with electrical signal detection, audio detection and masking audio generation

The present invention is an in-ear device with electrical signal detection, audio detection and masking audio generation, particularly a device that can detect brain wave signals from the external auditory canal and play masking audio in real time to reduce tinnitus. It can also detect a sound signal from the external auditory canal to assist in determining whether the tinnitus is pulsatile tinnitus or non-pulsatile tinnitus.

In the absence of external sound stimulation, tinnitus patients will hear tinnitus when they are quiet. In severe cases, tinnitus may also occur when they are not quiet, which can easily lead to symptoms such as sleep disorders and bad mood. Tinnitus is divided into non-pulsatile tinnitus and pulsatile tinnitus. Non-pulsatile tinnitus is usually related to hearing loss, ear canal inflammation or fluid accumulation, taking diuretics or antibiotics, etc. About more than 85% of tinnitus patients have non-pulsatile tinnitus. Although non-pulsatile tinnitus does not cause other serious diseases, it still affects the daily life of patients. Tinnitus patients will feel uncomfortable, nervous, and have difficulty staying focused. In severe cases, it will also affect the psychological level, such as mania, depression, and difficulty falling asleep. Pulsatile tinnitus is uncommon and usually benign, but it may be related to abnormal blood vessels or tissues, including cardiovascular diseases such as high blood pressure or arterial stenosis or atherosclerosis, brain tumors, thyroid abnormalities, abnormal muscle twitching or ear-related diseases. For the diagnosis of tinnitus, doctors arrange examinations including: hearing tests, EEG tests, ultrasound scans, tomography scans and MRIs, that is, the data of brain waves is related to tinnitus.

Masking therapy is a way of treating tinnitus. For example, when tinnitus occurs, masking audio with a frequency slightly higher than the tinnitus is given. For example, when the tinnitus frequency is a buzzing sound of 30 Hz, a running water sound of about 35 Hz to 40 Hz is given to mask the tinnitus sound. When the tinnitus disappears, the masking audio can be removed. Among them, non-pulsatile tinnitus can be improved through masking therapy, while pulsatile tinnitus cannot be improved through masking therapy. Therefore, the effectiveness of masking therapy can be used to assess whether the patient's tinnitus is non-pulsatile tinnitus or pulsatile tinnitus.

The Republic of China's Invention Patent No. 519486 "EEG Feedback Control for Sound Therapy of Tinnitus" records the patient's brain wave signals when they have tinnitus, detects the best masking sound for the patient and records it, so that the patient can use the masking sound to improve the tinnitus when the tinnitus occurs.

Chinese invention patent No. CN103816007, "A tinnitus treatment device and method based on an EEG frequency domain feature indexing algorithm", detects and analyzes the patient's brain wave signals during tinnitus treatment to confirm the treatment effect of the patient and provide the option of different masking audio signals.

The brain wave detection in the above cases all used electrode patches and was performed in medical institutions, and audio equipment was used to mask the audio. However, according to clinical data, the symptoms of tinnitus occur randomly in daily life, so when tinnitus symptoms occur, it is difficult for patients to seek medical treatment immediately, and they cannot distinguish whether the tinnitus is non-pulsatile tinnitus or pulsatile tinnitus. Therefore, they often choose to ignore the symptoms of tinnitus, resulting in missing the best time for treatment.

In 2019, Simon, Mike and others published "Dry-Contact Electrode Ear-EEG" in the IEEE Journal of Biomedical Engineering, revealing that the user's brain wave signals can be detected by ear canal electrodes.

However, the above-mentioned "Dry-Contact Electrode Ear-EEG" research paper did not explore methods to reduce tinnitus, nor did it propose a technology to distinguish between pulsatile tinnitus and non-pulsatile tinnitus.

Therefore, the present invention proposes an ear canal device with electrical signal detection, audio detection and masking audio generation, comprising: two ear canal bodies corresponding to the shape of the external auditory canal outlet of the human body; a control unit; a processing unit; an electrical signal detection unit, which is respectively arranged in the aforementioned ear canal bodies and connected to the control unit and the processing unit, and the electrical signal detection unit includes a plurality of electrodes, each of the aforementioned ear canal bodies includes at least two positive electrodes and a grounding electrode, wherein the two positive electrodes are located at the position of the ear canal body corresponding to the external auditory canal outlet of the human body, and the grounding electrode extends from the ear canal body to the position corresponding to the auricle, ear lobe or the ear surrounding of the human body. position; an audio unit connected to the control unit, the audio unit comprising a masking sound generator and an audio detector; a power source electrically connected to the control unit, the processing unit, the electrical signal detection unit and the audio unit; the electrical signal detection unit detects a brain wave signal of the human body from the external auditory canal of the tinnitus patient, and when tinnitus occurs, controls the masking sound generator through the control unit to emit a masking audio signal to reduce the tinnitus; the audio detector detects a sound signal from the external auditory canal of the tinnitus patient, and the processing unit outputs a prediction message according to the brain wave signal and the sound signal to assist in determining whether the tinnitus is pulsating tinnitus or non-pulsating tinnitus. There is also a warning unit connected to the processing unit, and the warning unit sends a warning message according to the predicted message.

When the control unit controls the masking sound emitting element to emit a masking audio signal, the control unit synchronously activates the audio detection element to detect the sound signal in the external auditory canal of the tinnitus patient.

The present invention further comprises an electronic device which is wirelessly connected to the processing unit and comprises an input interface. The electronic device executes a preset computer program so that the input interface receives frequency information heard by the tinnitus patient during tinnitus.

The aforementioned ear canal type main body is an in-ear earphone, an ear canal earphone or a hearing aid.

The present invention further comprises a bone conduction body, in which the sound-shielding sound-generating element is disposed.

The present invention further comprises a control box, in which the control unit, the processing unit and the power supply are arranged, and the control box is wiredly connected to the two ear canal bodies and the bone conduction unit.

Furthermore, the masking sound generating element is provided with an actuator to control the activation and deactivation of the masking sound generating element.

According to the above technical features, the following effects can be achieved:

1. The masking audio unit is installed in the ear canal body, which can be worn at any time or carried with you. When non-pulsating tinnitus occurs, the user can actively control the playing of masking audio to instantly alleviate the tinnitus.

2. Since non-pulsating tinnitus has no sound source, while pulsating tinnitus has a sound source, the ear canal body of the present invention is also provided with an audio detector. After wearing the ear canal body at the exit of the external auditory canal, the external auditory canal can be isolated from the outside world, and the audio detector can detect the sound in the external auditory canal. If the audio detector also detects an abnormal sound source during tinnitus, it means that the cause of tinnitus may be pulsating tinnitus, thereby reminding the user to seek medical attention as soon as possible.

3. The in-ear body is equipped with an electrical signal detection unit that can detect brain waves from the external auditory canal, which helps to record the changes in brain wave signals before, during and after tinnitus to assist in treatment or for medical research. For example, the above brain wave signals can be classified according to the relationship between voltage and frequency, and through AI algorithm learning, the type of tinnitus can be distinguished according to the detected electrical signals, and the best masking audio, such as the best sound type and the best sound frequency, can be automatically selected.

4. The above-mentioned ear canal body can be an in-ear earphone, an ear canal earphone or a hearing aid, and the control unit, the electrical signal detection unit, the shielding audio unit and other structures are integrated into the in-ear earphone, the ear canal earphone or the hearing aid, so as to be portable. Alternatively, the shielding sound generating element in the shielding audio unit is separately arranged on a bone conduction body, and the ear canal body is used to perform electrical signal measurement and sound signal measurement in the external auditory canal, and the shielding sound generating element in the bone conduction body is used to generate shielding audio around the ear, so that the tinnitus patient can hear the shielding audio through bone conduction.

The embodiments described below are only used to assist in explaining the in-ear device of the present invention having electrical signal detection, audio detection and generating masking audio, and are not intended to limit the present invention.

Referring to the first, second and third figures, the first embodiment of the present invention includes: two ear canal bodies 1, which correspond to the shape of the external auditory canal outlet of the human body, so as to facilitate wearing at the external auditory canal outlet. In this embodiment, the ear canal body 1 adopts a wireless in-ear earphone or a wireless ear canal earphone. A control unit 2 is arranged in one of the ear canal bodies 1. In this embodiment, it is arranged in the ear canal body 1 for the left ear. Two electrical signal detection units 3 are respectively arranged in the two ear canal bodies 1, wherein the electrical signal detection unit 3 in the ear canal body 1 for the left ear is connected to the control unit 2 in a wired manner, and the electrical signal detection unit 3 in the ear canal body 1 for the right ear is connected to the control unit 2 in a wireless manner, and the wireless connection method uses, for example, a built-in Bluetooth module. Each electrical signal detection unit 3 includes two positive electrodes 31 and a grounding electrode 32, wherein the grounding electrode 32 is connected by wires and extends outside the ear canal body 1, and the two positive electrodes 31 are located on the outer surface of the ear canal body 1, and preferably, the two positive electrodes 31 are located on two opposite sides of the ear canal body 1. An audio unit 4 is provided in the ear canal body 1 and connected to the control unit 2. The audio unit 4 includes a masking sound generating component 41, an audio detecting component 42 and an activator 43. The masking sound generating component 41 is connected to the activator 43. The masking sound generating component 41 and the audio detecting component 42 are provided in the ear canal body 1. The positions of the masking sound generating component 41 and the audio detecting component 42 are provided so that the sound generated by the masking sound generating component 41 can be heard by the user and the audio detecting component 42 can receive the sound generated in the ear canal. It is preferred that the audio detecting component 42 is provided on the outer surface of the ear canal body 1 so as to contact the external ear canal C for sound collection. The activator 43 is provided outside the ear canal body 1. The activator 43 of this embodiment is wirelessly connected to the masking sound generating component 41. A processing unit 7 is signal-connected to the control unit 2. An alarm unit 5 is disposed in the ear canal body 1 and connected to the processing unit 7. The alarm unit 5 can use, for example, a sound or light emitting element. A power source 6 is disposed in the ear canal body 1. The power source 6 is electrically connected to the control unit 2, the processing unit 7, the electric signal detection unit 3, the audio unit 4 and the alarm unit 5.

Referring to the second to fourth figures, the user wears the two ear canal bodies 1 at the exit ends of the external auditory canals C of the left and right ears respectively, and makes the two positive electrodes 31 in each ear canal body 1 attached to the skin around the external auditory canal C, and the other ground electrode 32 is attached to the auricle. The ground electrode 32 can also be attached to the earlobe or other positions around the ear.

When the user has tinnitus, the masking sound generating member 41 can be activated by the activator 43 to emit a masking audio signal. The frequency of the masking audio signal is preferably slightly higher than or equal to the tinnitus frequency. For example, when the tinnitus frequency is a buzzing sound of 30 Hz, the frequency of the masking audio signal is about 30 Hz to 40 Hz of running water sound. The masking audio signal file can be pre-stored in a storage unit located in the ear canal body 1. The storage unit is electrically connected to the power supply 6 and the control unit 2. The storage unit is omitted in each figure of this embodiment. By playing the masking audio signal in real time for the user to hear, the tinnitus can be effectively alleviated. After the tinnitus ends, the user can turn off the masking sound generating element 41 through the actuator 43 to stop outputting the masking audio. The actuator 43 can be a physical activation switch or a program (APP) that can be used to control the opening and closing of the masking sound generating element 41.

By means of two positive electrodes 31 and a ground electrode 32 of each ear canal body 1, brain wave signals can be measured from the external auditory canal C. The brain wave signal is a voltage signal, and the measured brain wave signal is stored in the storage unit or output to the cloud. Since the brain wave signal is related to the diagnosis of tinnitus, the user can wear the ear canal body 1 for a long time to fully record the brain wave signals before, during and after tinnitus, so as to assist in diagnosis or medical research.

In addition, the personal brain wave signals of tinnitus patients collected over a long period of time can also be classified according to the relationship between voltage, frequency, etc. before, during, and after tinnitus. Through AI algorithm learning, an AI prediction module can be established to make AI active judgments of tinnitus based on brain wave signals. Once the AI active judgment is accurate, the control unit 2 can actively control the timely actions of the masking sound generating component 41 and the audio detection component 42 when tinnitus occurs, and even automatically select the best masking audio, such as the best sound type and the best sound frequency. If brain wave signals before, during, and after tinnitus are collected from many tinnitus patients, it will be more helpful to analyze the relationship between tinnitus and brain waves through the establishment and analysis of big data.

Non-pulsatile tinnitus has no sound source. For non-pulsatile tinnitus, playing masking audio can effectively reduce the tinnitus. If the tinnitus cannot be improved after playing masking audio, the user can easily be alerted that the tinnitus may be pulsatile tinnitus, which helps to seize the opportunity to seek medical treatment.

The audio detector 42 in the ear canal body 1 can be turned on normally or manually when worn. When the masking audio is not played, the audio detector 42 can detect sound signals from the external auditory canal C. The source of the sound signal is, for example, the cerebral blood vessels or muscle tissue near the ear. Taking the cerebral blood vessels as an example, blood flowing in the cerebral blood vessels will produce normal flow sounds. When there is a tumor in the cerebral blood vessels or the cerebral blood vessels are deformed due to pressure from surrounding tissues, blood in the cerebral blood vessels will produce abnormal flow sounds due to changes in flow rate. The above-mentioned audio detector 42 can detect sound signals of normal flow sounds and abnormal flow sounds at any time, and the sound signals can be stored in the aforementioned storage unit or output to the cloud. The processing unit 7 receives the sound signals of the normal flow sound and the abnormal flow sound, and compares the frequency difference between the two. If the difference value is greater than a threshold value, the processing unit 7 outputs a prediction message. In actual operation, if the user cannot improve the tinnitus after playing the masking audio, the user can first turn off the masking audio, and then activate the audio detection element 42 to detect the sound information of the cerebral blood vessels near the external auditory canal C at that time. The processing unit 7 then compares the sound information with the normal flow sound of the cerebral blood vessels. If the difference value is greater than the threshold value, it means that the sound information of the cerebral blood vessels at that time is abnormal. At this time, the processing unit 7 outputs a prediction message to the warning unit 5, and the warning unit 5 sends a warning signal such as sound, light or vibration to remind the user to seek medical examination. That is, when the warning signal appears, the user can easily realize that the tinnitus at that time may be pulsating tinnitus.

When the audio detector 42 is activated, if the user receives the warning signal from the warning unit 5 when tinnitus occurs, that is, the warning signal is generated simultaneously with the tinnitus, then the tinnitus is very likely to be pulsatile tinnitus. On the contrary, if the user does not receive the warning signal from the warning unit 5 when tinnitus occurs, it means that the tinnitus may be non-pulsatile tinnitus.

The present invention further includes an electronic device 8, which is a smart phone in this embodiment. The electronic device 8 is wirelessly connected to the processing unit 7, and the wireless connection method is, for example, Bluetooth or WiFi. The electronic device 8 includes an input interface 81, and a frequency recording APP is installed in the electronic device 8. By executing the frequency recording APP, the user can touch the input interface 81 intermittently with a finger according to the frequency of the tinnitus heard during tinnitus, so that the frequency recording APP records the tinnitus frequency and the time of occurrence. The recorded tinnitus frequency and the time of tinnitus occurrence and other information can be used for comparison with the aforementioned brain wave signal, including for subsequent AI training and establishment of an AI prediction module to assist in judging the relationship between brain wave signals and tinnitus.

In the above embodiment, the control unit 2, the processing unit 7, the warning unit 5 and the power supply 6 are all arranged in the in-ear body 1, which is convenient to carry.

Please refer to the sixth and seventh figures. In the second embodiment of the present invention, two ear canal bodies 1A are also provided. The ear canal bodies 1A adopt wireless in-ear headphones or wireless ear canal headphones. A control unit 2A is disposed in a control box 9A. Two electrical signal detection units 3A are respectively disposed in the two ear canal bodies 1A, and are both connected to the control unit 2A in a wired manner. Each electrical signal detection unit 3A includes two positive electrodes 31A and a grounding electrode 32A, wherein the grounding electrode 32A extends outside the ear canal body 1A, and the two positive electrodes 31A are located on the outer surface of the ear canal body 1A, and preferably, the two positive electrodes 31A are located on opposite sides of the ear canal body 1A. An audio unit 4A is disposed in the ear canal body 1A and is wiredly connected to the control unit 2A. The audio unit 4A includes a masking sound generator 41A, an audio detector 42A and an actuator 43A, wherein the masking sound generator 41A is connected to the actuator 43A. The masking sound generator 41A and the audio detector 42A are disposed in the ear canal body 1A. Preferably, the audio detector 42A is disposed on the outer surface of the ear canal body 1A, and the actuator 43A is disposed outside the ear canal body 1A. The actuator 43A is wirelessly connected to the masking sound generator 41A. A processing unit 7A is disposed in the control box 9A. The processing unit 7A is signal-connected to the control unit 2A. An alarm unit 5A is provided in the control box 9A and connected to the processing unit 7A. The alarm unit 5A may use, for example, a sound or light emitting element. A power source 6A is provided in the control box 9A. The power source 6A is electrically connected to the control unit 2A, the processing unit 7A, the electric signal detection unit 3A, the audio unit 4A and the alarm unit 5A. An electronic device 8A is wirelessly connected to the processing unit 7A.

The operation method of the second embodiment is the same as that of the first embodiment, and will not be described in detail. In the second embodiment, the control unit 2A, the warning unit 5A, the processing unit 7A and the power supply 6A are arranged in the control box 9A and connected to the two ear canal body 1A by wire, which can reduce the weight of the ear canal body 1A, making the ear canal body 1A more convenient to wear in the external auditory canal C, and the control box 9A can be hung on the waist or put into a pocket or a bag.

Please refer to Figures 8 and 9. In the third embodiment of the present invention, two ear canal bodies 1B are also provided. The ear canal bodies 1B are integrally formed on a bone conduction earphone. The bone conduction earphone is provided with two bone conduction bodies 10B corresponding to the outer peripheral positions of the left and right ears of the human body. The two ear canal bodies 1B are integrally formed on the edges of the two bone conduction bodies 10B. A control unit 2B is provided in a control box 9B. Two electrical signal detection units 3B are respectively disposed in the two ear canal bodies 1B and are connected to the control unit 2B by wire. Each electrical signal detection unit 3B includes two positive electrodes 31B and a ground electrode 32B, wherein the ground electrode 32B extends outside the ear canal body 1B, and the two positive electrodes 31B are located on the outer surface of the ear canal body 1B, preferably, the two positive electrodes 31B are located on opposite sides of the ear canal body 1B. An audio unit 4B includes a masking sound generating component 41B, an audio detector 42B and an activator 43B, wherein the masking sound generating component 41B is connected to the activator 43B, the masking sound generating component 41B is arranged in the bone conduction body 10B, the audio detector 42B is arranged in the ear canal body 1B, preferably the audio detector 42B is arranged on the outer surface of the ear canal body 1, the activator 43B is arranged outside the bone conduction body 10B, the activator 43B is wirelessly connected to the masking sound generating component 41B, and the audio unit 4B is wiredly connected to the control unit 2B. A processing unit 7B is arranged in the control box 9B, and the processing unit 7B is signal-connected to the control unit 2B. An alarm unit 5B is provided in the control box 9B and connected to the processing unit 7B. The alarm unit 5B may use, for example, a sound or light emitting element. A power source 6B is provided in the control box 9B. The power source 6B is electrically connected to the control unit 2B, the processing unit 7B, the electric signal detection unit 3B, the audio unit 4B and the alarm unit 5B. An electronic device 8B is wirelessly connected to the processing unit 7B.

The operation method of the third embodiment is the same as that of the second embodiment, and will not be described in detail. In the second embodiment, the control unit 2B, the alarm unit 5B, the processing unit 7B and the power supply 6B are arranged in the control box 9B and are connected to the two ear canal bodies 1B and the bone conduction body 10B in a wired manner, which can reduce the weight of the ear canal body 1A and the bone conduction body 10B. At the same time, after the user wears the bone conduction earphone, the bone conduction body 10B is located on the periphery of the ear and close to the skull, and the ear canal body 1B is the same as the first and second embodiments, corresponding to the outlet end of the external auditory canal C. In this way, the masking audio emitted by the masking sound generating member 41B can be heard by the user through bone conduction.

Combined with the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above embodiments are only preferred embodiments of the present invention and should not be used to limit the scope of the implementation of the present invention. In other words, simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention description are all within the scope of the present invention.

1,1A,1B: In-ear body 10B: Bone conduction body 2,2A,2B: Control unit 3,3A,3B: Electrical signal detection unit 31,31A,31B: Positive electrode 32,32A,32B: Ground electrode 4,4A,4B: Audio unit 41,41A,41B: Masking sound generator 42,42A,42B: Audio detector 43,43A,43B: Starter 5,5A,5B: Alarm unit 6,6A,6B: Power supply 7,7A,7B: Processing unit 8,8A,8B: Electronic device 81: Input interface 9A,9B: Control box C: External auditory canal

[Figure 1] is a three-dimensional appearance diagram of the ear canal body and the electrical signal detection unit of the first embodiment of the present invention.

[FIG. 2] is a schematic diagram showing the connection relationship between the components of the ear canal device for detecting the electrical signal of tinnitus and generating masking audio according to the first embodiment of the present invention.

[Figure 3] is a schematic diagram of the ear canal body and the electrical signal detection unit of the first embodiment of the present invention worn at the exit of the external ear canal of the human body.

[Figure 4] is a schematic diagram of the ear canal body and the electrical signal detection unit of the first embodiment of the present invention worn at the exit of the external auditory canals of both ears of the human body.

[FIG. 5] is a schematic diagram of the operation of recording tinnitus frequency by an electronic device according to the first embodiment of the present invention.

[Figure 6] is a schematic diagram of the second embodiment of the present invention, wherein the control unit, processing unit, warning unit and power supply are all arranged in the control box.

[Figure 7] is a schematic diagram of the component connection relationship of the second embodiment of the present invention.

[Figure 8] is a schematic diagram of wearing the third embodiment of the present invention, in which the ear canal body is integrally formed on a bone conduction earphone.

[Figure 9] is a schematic diagram of the bone conduction earphone of the third embodiment of the present invention transmitting masked audio.

[Figure 10] is a schematic diagram of the component connection relationship of the third embodiment of the present invention.

1: In-ear body

2: Control unit

3:Electrical signal detection unit

31: Positive electrode

32: Ground electrode

4: Audio unit

41: Masking sound generator

42: Audio detection device

43: Starter

5: Warning unit

6: Power supply

7: Processing unit

8: Electronic devices

Claims (8)

An ear canal device with electrical signal detection, audio detection and masking audio generation is provided for a tinnitus patient to wear. The ear canal device with electrical signal detection, audio detection and masking audio generation comprises: two ear canal bodies corresponding to the shape of the outlet end of the external auditory canal of the human body; a control unit; a processing unit; an electrical signal detection unit, which is respectively arranged on the ear canal bodies and connected to the control unit and the processing unit, and the electrical signal detection unit comprises a plurality of electrodes, each of the ear canal bodies comprises at least two positive electrodes and a grounding electrode, wherein the two positive electrodes are located at the position of the ear canal body corresponding to the outlet end of the external auditory canal of the human body, and the grounding electrode extends from the ear canal body to the position corresponding to the auricle, ear lobe or the periphery of the ear of the human body; an audio unit connected to the control unit, the audio unit comprising a masking sound generator and an audio detector; a power source electrically connected to the control unit, the processing unit , the electrical signal detection unit and the audio unit; the electrical signal detection unit detects a brain wave signal of the human body from the external auditory canal of the tinnitus patient, and when tinnitus occurs, controls the masking sound generator through the control unit to emit a masking audio signal to alleviate the tinnitus; the audio detector detects a sound signal from the external auditory canal of the tinnitus patient, and the processing unit outputs a prediction message according to the sound signal to assist in determining whether the tinnitus is pulsatile tinnitus or non-pulsatile tinnitus. As described in claim 1, the in-ear canal device has electrical signal detection, audio detection and generation of masking audio, wherein when the control unit controls the masking sound-generating element to emit a masking audio, the control unit synchronously activates the audio detection element to detect the sound signal in the external auditory canal of the tinnitus patient. The in-ear device with electrical signal detection, audio detection and masking audio generation as described in claim 1 further includes an electronic device, which is wirelessly connected to the processing unit, and includes an input interface. The electronic device executes a preset computer program so that the input interface receives frequency information heard by the tinnitus patient during tinnitus. As described in claim 1, the ear canal device has electrical signal detection, audio detection and generation of masking audio, wherein there is an alarm unit connected to the processing unit, and the alarm unit selectively outputs an alarm message based on the predicted message. An ear canal device having electrical signal detection, audio detection and masking audio generation as described in claim 1, wherein the ear canal body is an in-ear earphone, an ear canal earphone or a hearing aid. The ear canal device having electrical signal detection, audio detection and masking audio generation as described in claim 1 further comprises a control box, wherein the control unit, the processing unit and the power supply are arranged in the control box, and the control box and the two ear canal bodies are connected by wire. The ear canal device having electrical signal detection, audio detection and masking audio generation as described in claim 1 further comprises a bone conduction body, in which the masking sound generating element is disposed. The ear canal device having electrical signal detection, audio detection and masking audio generation as described in claim 7 further comprises a control box, wherein the control unit, the processing unit and the power supply are arranged in the control box, and the control box and the two ear canal bodies and the bone conduction unit are wiredly connected.

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