Hearing aid device capable of collecting sounds at multiple points and converting characters in real time and application method
The hearing aid device, which collects sound at multiple points and converts it into text in real time, solves the problems of loud speaker volume and noise interference in large-scale meetings, achieves clear transmission of voice communication and text display, and ensures the auditory comfort of participants.
Patent Information
- Application Number
- CN202510799154.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-09-12
AI Technical Summary
In large conference rooms, the loudspeaker amplifies sound at a high volume, causing discomfort to participants and causing serious noise interference. Participants with poor hearing cannot hear the speakers clearly, and the loudspeaker sound interferes with the outside world of the meeting.
The hearing aid device uses multi-point sound collection, including a wireless microphone, wireless headphones, a display, a sound receiving unit, an analysis unit and a headphone wearing detection circuit. It transmits voice through wireless signals and converts it into text for real-time display. The headphone wearing detection circuit ensures that the headphones are worn correctly and reduces howling.
It achieves clear transmission of voice communication between the host and participants, reduces interference with the surrounding environment, ensures that everyone can clearly hear the speech, and reduces the impact of earphone howling on hearing.
Smart Images
Figure CN120640223A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of speech processing equipment and application methods, and in particular to a hearing aid device capable of collecting sound at multiple points and converting it into text in real time, and an application method thereof. Background Art
[0002] In meetings, the host's speech is usually processed and then played out through a loudspeaker, so that participants at a certain distance from the host can also hear the host's voice. Due to technical limitations, the above method also has the following technical disadvantages.
[0003] Specifically, if the area of the conference room is large, the volume of the sound after the loudspeaker is amplified will also be loud, which will cause discomfort to the participants. In addition, after the sound is amplified, sometimes due to noise interference or the influence of the conference environment, it cannot be guaranteed that every participant can hear the speech clearly. This situation is more obvious for participants with poor hearing. In addition, when the participants are speaking, if they are far away from the host's position on the podium, it cannot be guaranteed that the host can clearly hear the speech of the corresponding participant. Finally, the sound emitted by the host and others is loud after being amplified by the loudspeaker, which may cause sound interference to other people nearby outside the conference room. Based on the above, it is very necessary to provide a hearing aid device and application method that can enable the host and participants to achieve smooth and accurate voice communication and reduce sound interference to the surrounding environment. Summary of the Invention
[0004] In order to overcome the drawbacks of existing voice equipment used in conferences, etc. due to structural limitations, as described in the background technology, the present invention provides a hearing aid device and application method with multi-point sound collection and real-time text conversion, which can realize voice communication between the host and the participants through wireless microphones and wireless headphones under the joint action of relevant structures. The voice speeches of the participants and the host will also be converted into text and displayed on the display screen at the host's position, so that the host and the participants can understand the specific content of the speaker more clearly. The device also has a headphone wearing detection mechanism, which can prompt the user to wear the earplugs of the headphone in place, reducing the howling of the headphones caused by the surrounding environment and the adverse effects on the user's hearing.
[0005] The technical solution adopted by the present invention to solve its technical problem is: The hearing aid device has the function of multi-point sound collection and real-time text conversion, including a host with a display screen, wireless headphones, wireless microphones, a sound receiving unit, an analysis unit, a comparison unit, a display unit, a headphone wearing detection circuit, and a prompt circuit; the wireless headphones and wireless microphones are respectively provided with multiple sets, each participant wears a set of wireless headphones on the head, the multiple sets of wireless microphones are respectively placed at the positions of multiple participants, and the host is placed at the conference podium; the sound receiving unit, the analysis unit, the comparison unit, and the display unit are application software units installed in the control system of the host, the sound receiving unit can receive the wireless audio signals transmitted by the wireless microphones of the host and each participant, and the comparison unit can receive the wireless audio signals transmitted by the wireless microphones of multiple persons. The wireless audio signals outputted by the wireless headset are compared and the multi-channel sound signals are outputted to the analysis unit respectively. The analysis unit can analyze the audio signals inputted by the comparison unit and convert them into text data. The display unit displays the text data through the screen of the display screen. The earphone wearing detection circuit has multiple channels. Each wireless headset is equipped with multiple earphone wearing detection circuits and one prompt circuit. The earphone wearing detection circuit and the prompt circuit are installed in the wireless headset component box. In the multi-channel earphone wearing detection circuit of each wireless headset, the power input end of each adjacent two rear earphone wearing circuits and the power output end of the front earphone wearing detection circuit are electrically connected. The signal output end of the last earphone wearing detection circuit is electrically connected to the signal input end of the prompt circuit.
[0006] Furthermore, the operating frequencies of each set of wireless headphones and wireless microphones are consistent.
[0007] Furthermore, the headphone wearing detection circuit includes an electrically connected metal sheet, a resistor, a field-effect transistor, a transistor, and a capacitor, one end of the resistor is connected to the collector of the transistor, the other end of the resistor is connected to the drain of the field-effect transistor and the base of the transistor, the source of the field-effect transistor is connected to the negative electrode of the capacitor, the emitter of the transistor is connected to the positive electrode of the capacitor, and the gate of the field-effect transistor is connected to one end of the metal sheet.
[0008] Furthermore, the prompt circuit includes an electrically connected resistor, a transistor, and a vibration motor, one end of the first resistor is connected to the base of the first transistor, the collector of the first transistor is connected to one end of the second resistor and the base of the second transistor, the emitters of the two transistors are connected, the collector of the second transistor is connected to the negative power input terminal of the vibration motor, and the other end of the second resistor is connected to the positive power input terminal of the vibration motor.
[0009] Furthermore, the metal sheet and the annular spacing distribution of the multi-channel headphone wearing detection circuit are respectively fixedly mounted on the inner and outer ends of the earplugs of the headphone, and the outer side of the metal sheet and the inner and outer ends of the earplugs are in an arc plane.
[0010] The invention discloses an application method of a hearing aid device capable of multi-point sound collection and real-time text conversion, comprising the following steps: S1: placing a set of wireless microphones at a conference podium and at each participant's position, and each conference host and participant wears a set of wireless headphones; S2: a headphone wearing detection circuit and a prompt circuit detect whether each person's matching headphones are qualified. If the inner side of the earplug of the headphone does not fully contact the ear canal, a vibration motor vibrates to prompt; S3: the speech content of the conference host and participant is converted into wireless audio signals via the wireless microphone and transmitted; S4: a sound receiving unit receives the wireless audio signals transmitted by the wireless microphones of the host and each participant, a comparison unit compares the wireless audio signals received simultaneously by multiple participants via the wireless microphones, and outputs the multiple sound signals to the analysis unit; S5: the analysis unit analyzes the audio signals input by the comparison unit and converts them into text data, and the display unit displays the text data on the screen. The participants and the host can view the text content displayed on the screen and understand the speech content of other participants and their own.
[0011] Furthermore, in step S2, when the outer ends of the multiple copper sheets at the inner outer end of the earplug contact the ear canal at the same time, the vibration motor does not work.
[0012] Furthermore, there is no limit to the number of sets of wireless microphones, and a relatively small number of wireless microphones can be deployed on the basis of ensuring that the speech content of each person is received by the nearest wireless microphone.
[0013] Furthermore, the wireless earphone is one of a single earphone and a headphone.
[0014] Furthermore, the content of the display screen can be played synchronously in the form of sound according to the setting requirements. Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is mainly used in conference venues with multiple people. Specifically, the host and the participants can conveniently communicate with each other through wireless microphones and wireless headphones via wireless signals. Under the action of the sound receiving unit, analysis unit, comparison unit, display unit, etc., the voice speeches of the participants and the host will also be processed and displayed on the display screen at the host's position through voice-to-text conversion, so that the host and the participants can more clearly understand the specific content of the speaker. The voice content of the speaker is transmitted synchronously in voice and text, which can make it easier for the participants to understand the speech content of other people and reduce the problem of the conference sound causing sound interference to people in other positions. Under the action of the headphone wearing detection circuit, prompt circuit, etc., when the user does not wear the earplug of the headphone in place, the user can be actively prompted by vibration, reducing the problem of the earphone whistling caused by the surrounding environment sound and causing adverse effects on the user's hearing. In summary, the present invention has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0017] Figure 2 It is a software architecture diagram of the present invention.
[0018] Figure 3 It is a schematic diagram of the local structure of the present invention.
[0019] Figure 4 It is a circuit diagram of the present invention. DETAILED DESCRIPTION
[0020] Figure 1 、 2 , 3, and 4, a hearing aid device with multi-point sound collection and real-time text conversion includes a host 1 with a display screen, a wireless headset 2, and a wireless microphone 3. It also has a sound receiving unit, an analysis unit, a comparison unit, a display unit, a headset wearing detection circuit 4, and a prompt circuit 5; the wireless headset 2 and the wireless microphone 3 are respectively provided with multiple sets, and each participant wears a set of wireless headsets 2 on the head. The multiple sets of wireless microphones 3 are respectively placed on the desktops at the positions of multiple participants, and the host 1 is placed at the conference podium; the sound receiving unit, the analysis unit, the comparison unit, and the display unit are application software units of the control system installed in the host 1. The sound receiving unit can receive wireless sounds emitted by the wireless microphones of the host and each participant. The comparison unit can compare wireless audio signals received simultaneously from multiple people via wireless microphones and output the multiple audio signals to the analysis unit. The analysis unit can analyze the audio signals input by the comparison unit and convert them into text data, which the display unit then displays on the display screen. The earphone wearing detection circuit 4 has three channels, and each wireless earphone 2 is equipped with three earphone wearing detection circuits 4 and one prompt circuit 5 (a single earphone has three earphone wearing detection circuits and a prompt circuit installed in one earphone; a dual earphone has three earphone wearing detection circuits and a prompt circuit installed in both earphones). The earphone wearing detection circuit 4 and prompt circuit 5 are installed on the circuit board inside the component box of the earphone 2. The following description uses two sets of earphone wearing detection circuits and prompt circuits as representative examples.
[0021] Figure 1 、 2As shown in Figures 3 and 4, the operating frequency of each set of wireless headphones 2 and wireless microphone 3 is consistent. Each set of headphone wearing detection circuit includes a metal copper sheet M (M1) and a resistor R (RN), a field effect transistor T (TN), a transistor Q (QN), and a capacitor C (CN) connected via circuit board wiring. One end of the resistor R (RN) is connected to the collector of the transistor Q (QN), the other end of the resistor R (RN) is connected to the drain of the field effect transistor T (TN) and the base of the transistor Q (QN), the source of the field effect transistor T (TN) is connected to the negative electrode of the capacitor C (CN), the emitter of the transistor Q (QN) is connected to the positive electrode of the capacitor C (CN), and the gate of the field effect transistor T (TN) is connected to the rear middle part of one end of the metal copper sheet M (M1). The reminder circuit includes resistors R1N and R2N, transistors Q1N and Q2N, and a vibration motor ZD connected via circuit board wiring. One end of the first resistor R1N is connected to the base of the first transistor Q1N, the collector of the first transistor Q1N is connected to one end of the second resistor R2N and the base of the second transistor Q2N, the emitters of the two transistors Q1N and Q2N are connected, the collector of the second transistor Q2N is connected to the negative power input of the vibration motor ZD, and the other end of the first resistor R1N is connected to the positive power input of the vibration motor ZD. The copper sheets M (M1) of the three-way headphone wearing detection circuit are distributed in an annular manner and fixedly mounted on the inner and outer ends of the earplug 21 of the headphone, and the outer side of the copper sheet M (M1) and the inner and outer ends of the earplug 21 are in the same arc plane.
[0022] Figure 1 、 2 As shown in , 3, and 4, the other end of the power input terminal resistor R and the positive electrode of the capacitor C of the first headphone wearing detection circuit in the three-way headphone wearing detection circuit, the other end of the power input terminal resistor R2N of the prompt circuit and the emitter of the transistor Q1N are connected in series through a power switch K and the two poles of the power supply of the battery G in the wireless headset are respectively connected through wires. In the other two-way headphone wearing detection circuit, the other end of the power input terminal resistor RN and the negative electrode of the capacitor CN of the rear end headphone wearing circuit of each two adjacent channels are connected to the positive and negative poles of the power output terminal capacitor CN of the front end headphone wearing detection circuit via wires, the other end of the power input terminal resistor RN and the positive electrode of the capacitor CN of the first headphone wearing detection circuit of the other two channels are connected to the positive and negative poles of the power output terminal capacitor C of the first headphone wearing detection circuit via wires, and the emitter of the signal output terminal transistor QN of the last headphone wearing detection circuit of the other two channels is connected to the other end of the signal input terminal resistor R1N of the prompt circuit via wires.
[0023] Figure 1 、 2As shown in Figures 3 and 4, when the present invention is used, a set of wireless microphones 2 are placed at the conference podium and at each participant's position, and each conference host and participant wears a set of wireless headphones 2. After wearing the headphones, turn on the handle of the power switch K located on the outside of the headphone shell, and the first-channel headphone wearing detection circuit and the prompt circuit are powered and work; when the user wears the headphones normally, the outer sides of the three copper sheets M respectively touch the inner sides of the ear canal, and the gate of the field effect tube T senses the noise signal input by the corresponding copper sheet M, so that the resistance value between the drain and source of the field effect tube T is relatively large, and the voltage divided between the resistor R is relatively large. The power output by the battery G enters the base of the transistor Q through the resistor R and the field effect tube T, which is higher than 0.7V. The transistor Q is turned on and the emitter outputs a high level, which enters the collector of the transistor QN (capacitor C Filtering), the first earphone wearing detection circuit of the two adjacent channels is powered on and works (when the user wears the earphone incorrectly, the copper sheet does not touch the corresponding position inside the ear canal, the gate of the field effect transistor T cannot sense the noise signal input by the copper sheet M, and is in a zero-bias state. The resistance value between the drain and source of the field effect transistor T is relatively small, and the voltage divided by the resistor R is relatively small. In this way, the power output by the battery G enters the base of the transistor Q through the resistor R and the field effect transistor T, which is lower than 0.7V. The transistor Q will not be turned on, and the emitter will not output a high level to enter the power input end of the first earphone wearing detection circuit of the two adjacent channels. The first earphone wearing detection circuit of the two adjacent channels shall not be powered on and works). In the first earphone wearing detection circuit of the two adjacent channels, after the outer sides of the copper sheets M1 touch the inner sides of the ear canals respectively, the gate of the field-effect transistor TN senses the noise signal input by the corresponding copper sheet MN. In this way, the resistance value between the drain and source of the field-effect transistor TN is relatively large, and the voltage divided between the drain and source of the field-effect transistor TN is relatively large. The power output of the battery G enters the base of the transistor QN via the resistor RN and the field-effect transistor TN, and the voltage is higher than 0.7V. The transistor QN is turned on and the emitter outputs a high level, which enters the power input terminal of the second earphone wearing detection circuit of the two adjacent channels. The second earphone wearing detection circuit of the two adjacent channels is powered on and starts to operate (the capacitor CN is filtered; it has Specifically, when the user wears the earphones incorrectly and the corresponding copper sheet does not touch the corresponding position inside the ear canal, the gate of the field effect transistor TN cannot sense the noise signal input by the copper sheet MN. The resistance value between the drain and source of the field effect transistor TN (in the zero bias state) is relatively small, and the voltage divided between it and the resistor RN is relatively small. In this way, the power output by the battery G enters the base of the transistor QN through the resistor RN and the field effect transistor TN, and is lower than 0.7V. The transistor QN will not be turned on, and the emitter will not output a high level to enter the power input end of the second earphone wearing detection circuit of the adjacent two channels. The second earphone wearing detection circuit of the adjacent two channels will not be powered and will not work).In the second headphone wearing detection circuit of the two adjacent channels, after the outer side of the copper sheet M1 contacts the inner side of the ear canal respectively, the gate of the field-effect transistor TN senses the noise signal input by the corresponding copper sheet MN. As a result, the resistance value between the drain and source of the field-effect transistor TN is relatively large, and the voltage divided between it and the resistor RN is relatively large. The power output from the battery G enters the base of the transistor QN via the resistor RN and the voltage divided by the field-effect transistor TN, and is higher than 0.7V. The transistor QN is turned on, and the emitter outputs a high level, which enters the other end of the resistor R1N in the prompt circuit. (Specifically, when the user wears the headphones incorrectly and the corresponding copper sheet does not contact the corresponding position of the inner ear canal, the gate of the field-effect transistor TN does not sense the noise signal input by the copper sheet MN. The resistance value between the drain and source of the field-effect transistor TN (in a zero-bias state) is relatively small, and the voltage divided between it and the resistor RN is relatively small. As a result, the power output from the battery G enters the base of the transistor QN via the resistor RN and the voltage divided by the field-effect transistor TN, and is lower than 0.7V. The transistor QN will not turn on, and the emitter output will not output a high level, which enters the other end of the resistor R1N in the prompt circuit.) Through the above, as long as the user matches the earphones correctly, after the three copper pieces at the inner and outer ends of the earplug touch the inside of the ear canal, the transistors Q (QN) of the three-way earphone wearing detection circuit will be turned on one after another, and the collector of the last earphone wearing detection circuit of the other two channels will output a high level into the other end of the resistor R1N of the prompt circuit; specifically, if any copper piece does not touch the inside of the ear canal and the corresponding copper piece has no noise signal output, it will cause the emitter of the transistor of the corresponding earphone wearing detection circuit to have no output. In this way, the emitter of the transistor of the last earphone wearing detection circuit does not output a signal to the other end of the resistor R1N.
[0024] Figure 1 、 2As shown in Figures 3 and 4, in the prompt circuit, when all three headphone wearing detection circuits are working normally and the three copper sheets are attached to the inside of the human ear canal (that is, the earplugs of the headphone are properly worn), the high level output by the voltage-reducing and current-limiting resistor R1N enters the base of the transistor Q1N, the collector of the transistor Q1N is turned on and the low level output enters the base of the transistor Q2N, the base of the transistor Q2N is cut off without a suitable forward bias, and the corresponding vibration motor ZD will not be energized and work (indicating that the headphones are properly worn). In actual circumstances, as long as one of the copper sheets of the earphone wearing detection circuit is not in contact with the inner side of the human ear canal (that is, the earplug of the earphone is not worn in place), the transistor Q1N is cut off, and the base of the transistor Q2N obtains a suitable forward bias voltage through the resistor R2N to reduce the voltage and limit the current, turning on its collector to output a low-level vibration motor ZD negative power input terminal, and the vibration motor vibrates to remind the user that the earphone is not worn in place and the earphone position can be adjusted so that the earplug can fit in the human ear canal normally and completely. Through all the above technical solutions, the host and the participants of the present invention can conveniently use wireless microphones and wireless headphones via wireless signals To achieve voice communication, the voice speeches of the participants and the host will be converted into text and displayed on the display screen at the host's position, so that the host and the participants can understand the specific content of the speaker more clearly. The voice content of the speaker is transmitted simultaneously in sound and text, which can make it easier for the participants to understand the speech content of other people and reduce the problem of sound interference caused by the conference sound to people in other positions; when the user does not wear the earbuds of the headset properly, the headset can be actively reminded by vibration, reducing the problem of howling in the headset caused by the surrounding sound and adversely affecting the user's hearing. Figure 4 In the figure, resistors R, RN, R1N, and R2N have values of 47K, 47K, 10K, and 20K, respectively; transistors Q, QN, Q1N, and Q2N are model 9013 (NPN); capacitors C and CN are 10μF / 25V electrolytic capacitors; field-effect transistors T and TN are model 3DJ6; and vibration motor ZD is a miniature vibration motor for mobile phones. All electronic components in this invention use surface-mount components, which are compact, lightweight, and easy to install.
[0025] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded in all respects as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing description, and all changes that come within the meaning and range of equivalents of the claims are intended to be included therein.
[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, the implementation methods do not only include an independent technical solution. This narrative method 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 the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A hearing aid device capable of collecting sound from multiple points and converting it into text in real time, comprising a host with a display screen, wireless headphones, and a wireless microphone, characterized in that: It also has a sound receiving unit, an analysis unit, a comparison unit, a display unit, an earphone wearing detection circuit, and a prompt circuit; the wireless earphones and wireless microphones are respectively multiple sets, each participant wears a set of wireless earphones on his head, and the multiple sets of wireless microphones are respectively placed at the positions of multiple participants, and the host is placed at the conference podium; the sound receiving unit, the analysis unit, the comparison unit, and the display unit are application software units installed in the control system of the host, the sound receiving unit can receive the wireless audio signals emitted by the wireless microphones of the host and each participant, the comparison unit can compare the wireless audio signals received by multiple persons through the wireless microphones, and can convert multiple sound signals The headphone wearing detection circuit is output to the analysis unit respectively. The analysis unit can analyze the audio signal input by the comparison unit and convert it into text data. The display unit displays the text data through the screen of the display screen. The headphone wearing detection circuit has multiple channels. Each wireless headset is equipped with multiple headphone wearing detection circuits and one prompt circuit. The headphone wearing detection circuit and the prompt circuit are installed in the wireless headset component box. In the multiple headphone wearing detection circuits of each wireless headset, the power input end of each adjacent two rear-end headphone wearing circuits and the power output end of the front-end headphone wearing detection circuit are electrically connected. The signal output end of the last headphone wearing detection circuit is electrically connected to the signal input end of the prompt circuit.
2. The hearing aid device capable of multi-point sound collection and real-time text conversion according to claim 1, characterized in that: Each set of wireless headphones and wireless microphones have the same operating frequency.
3. The hearing aid device capable of multi-point sound collection and real-time text conversion according to claim 1, characterized in that: The headphone wearing detection circuit includes an electrically connected metal sheet, a resistor, a field-effect transistor, a transistor, and a capacitor. One end of the resistor is connected to the collector of the transistor, the other end of the resistor is connected to the drain of the field-effect transistor and the base of the transistor, the source of the field-effect transistor is connected to the negative electrode of the capacitor, the emitter of the transistor is connected to the positive electrode of the capacitor, and the gate of the field-effect transistor is connected to one end of the metal sheet.
4. The hearing aid device capable of multi-point sound collection and real-time text conversion according to claim 1, characterized in that: The prompt circuit includes an electrically connected resistor, a transistor, and a vibration motor, one end of the first resistor is connected to the base of the first transistor, the collector of the first transistor is connected to one end of the second resistor and the base of the second transistor, the emitters of the two transistors are connected, the collector of the second transistor is connected to the negative power input terminal of the vibration motor, and the other end of the second resistor is connected to the positive power input terminal of the vibration motor.
5. The hearing aid device capable of multi-point sound collection and real-time text conversion according to claim 3, characterized in that: The metal sheet and the ring spacing distribution of the multi-channel headphone wearing detection circuit are respectively fixedly installed on the inner and outer ends of the earplug of the headphone, and the outer side of the metal sheet and the inner and outer ends of the earplug are in the same arc plane.
6. The application method of the hearing aid device capable of multi-point sound collection and real-time text conversion according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: S1: placing a set of wireless microphones at the conference podium and at each participant's position, and each conference host and participant wears a set of wireless headphones; S2: a headphone wearing detection circuit and a prompt circuit detect whether the headphones matched with each person are qualified. When the inner side of the earplug of the headphone does not fully contact the ear canal of the ear, the vibration motor emits a vibration prompt; S3: the speech content of the conference host and the participant is converted into a wireless audio signal via the wireless microphone and transmitted; S4: a sound receiving unit receives the wireless audio signals transmitted by the wireless microphones of the host and each participant, a comparison unit compares the wireless audio signals received by multiple persons simultaneously transmitted by the wireless microphones, and outputs the multiple sound signals to the analysis unit respectively; S5: an analysis unit: analyzes the audio signal input by the comparison unit and converts it into text data, and a display unit displays the text data on the screen of the display, so that the participants and the host can view the text content displayed on the display and understand the speech content of other persons and their own.
7. The application method of the hearing aid device capable of multi-point sound collection and real-time text conversion according to any one of claim 6, characterized in that: In step S2, when the outer ends of the multiple copper sheets at the inner outer end of the earplug touch the ear canal at the same time, the vibration motor does not work.
8. The application method of the hearing aid device capable of multi-point sound collection and real-time text conversion according to any one of claim 6, characterized in that: There is no limit to the number of wireless microphones. A relatively small number of wireless microphones can be deployed to ensure that everyone's speech is received by the nearest wireless microphone.
9. The application method of the hearing aid device capable of multi-point sound collection and real-time text conversion according to any one of claim 6, characterized in that: Wireless earphones are a type of earphone or headset.
10. The application method of the hearing aid device capable of multi-point sound collection and real-time text conversion according to any one of claim 6, characterized in that: The content of the display screen can also be played synchronously in the form of sound according to the set requirements.