Earphone sound detection device

Abstract

The utility model provides an earphone sound detection device, which comprises a shell and an earphone body, the shell is arranged on the outer side of the earphone body, and a microphone is arranged on the surface of the shell and is used for detecting the intensity grade of a sound signal; the microphone is arranged on the surface of the shell, when the earphone and the ear are not worn in place and the sealing performance is poor, an obvious sound leakage phenomenon exists, then the microphone on the surface of the shell can detect the intensity grade of leaked sound, and the detection circuit outputs different level signals to the pin of the audio chip according to different intensity grades. And the audio chip performs corresponding correction according to the level signals of different degrees received by the pins and the corresponding compensation logic table, and compensates missed sound for the ears of the user during use, so that accurate hearing is ensured, and a good sound hearing reduction effect is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to an earphone sound detection device. Background Art

[0002] With the rapid development of technology, various types of headphones have become standard electronic products for people's daily work, study and leisure. With the update of the diversity of headphone functions, users have higher requirements for the hearing, practicality and comfort of headphones.

[0003] Smart terminals are equipped with many types of earphones. When users insert earphones into their ears, there will be a contact connection between the ears and the earphones. However, the structure of each person's ear is different, and a single fixed earphone size is difficult to fit all users' ears and form a good contact connection. When there is a difference in the sealing between the earphones and the left and right ears, this difference will change significantly each time they are worn. When the earphones are not worn properly, the sealing between the earphones and the ears deteriorates, causing some sound signals to leak, and then there is a phenomenon of sound leakage, which greatly affects the sound quality and the user's hearing experience.

[0004] In view of this, the current equipment for restoring the sound of headphones and preventing sound leakage needs to be further improved. Summary of the invention

[0005] In view of this, the utility model proposes an earphone sound detection device, which solves the existing technical problems of sound leakage and poor hearing experience for users caused by improper wearing of earphones.

[0006] The technical solution of the utility model is achieved in this way:

[0007] The utility model provides an earphone sound detection device, comprising: a shell and an earphone body, wherein the shell is arranged on the outside of the earphone body.

[0008] On the basis of this technical solution, further preferably, a microphone is provided on the side of the shell facing the earphone body for detecting the intensity level of the sound signal.

[0009] On the basis of this technical solution, it is further preferred that the earphone body also includes a control board, which is located inside the earphone body and is used to realize the transmission and control of the audio signal; the control board includes a detection circuit, which is connected in series with the pin and the power supply end of the microphone and is used to output level signals of different levels.

[0010] On the basis of this technical solution, further preferably, the microphone also includes a microphone sound receiving hole, and the microphone sound receiving hole is arranged on the surface of the shell for receiving sound of the earphone.

[0011] On the basis of this technical solution, it is further preferred that a speaker is provided on one side of the earphone body, and the speaker is provided on the contact surface between the earphone body and the shell.

[0012] On the basis of this technical solution, it is further preferred that the speaker is located at the center of the earphone body.

[0013] On the basis of this technical solution, it is further preferred that the microphone is located above the speaker and is arranged on the top of the housing.

[0014] On the basis of this technical solution, it is further preferred that earmuffs are provided at both ends of the earphone body, and the earmuffs are used to connect the ears and the earphones.

[0015] On the basis of this technical solution, further preferably, the control board also includes an audio chip and a pin, and the audio chip is connected to the microphone through the pin.

[0016] On the basis of this technical solution, further preferably, the control board includes a plurality of the pins, and the plurality of the pins respectively correspond to level signals of different levels.

[0017] On the basis of this technical solution, further preferably, the control board includes several groups of the detection circuits.

[0018] The earphone sound detection device of the utility model has the following beneficial effects compared with the prior art:

[0019] By setting a microphone on the surface of the shell, when the earphones are not properly worn on the ears and the sealing is poor, there is a more obvious sound leakage phenomenon, and the microphone setting on the surface of the shell can detect the intensity level of the leaked sound;

[0020] At the same time, the detection circuit outputs different level signals to the pins of the audio chip according to different intensity levels. The audio chip then makes corresponding corrections based on the compensation logic table according to the different levels of signal received by the pins, compensating for the leaked sound for the user's ears when using it, thereby ensuring accurate hearing and achieving good sound detection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1It is a cross-sectional view of the earphone sound detection device of the utility model;

[0023] Figure 2 The circuit diagram of the detection circuit of the utility model;

[0024] Figure 3 This is a schematic diagram of the working status of the earphone sound detection device of the utility model;

[0025] Figure 4 This is an internal circuit diagram of the earphone sound detection device of the utility model;

[0026] Figure 5 A sound signal curve diagram showing the sound signal detected by the headphone sound detection device of the utility model and restoring the hearing sense;

[0027] 1-housing, 2-earphone body, 10-microphone, 101-microphone receiving hole, 21-speaker, 22-earmuff, 23-control board, 231-audio chip, 232-pin, 234-detection circuit. DETAILED DESCRIPTION

[0028] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be understood that the terms used in this utility model embodiment specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model embodiments. As used in the utility model embodiment specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] Example 1

[0031] The utility model provides an earphone sound detection device, such as Figure 1 As shown, Figure 1 It is a cross-sectional view of the earphone sound detection device of the present invention.

[0032] An earphone sound detection device comprises: a shell 1 and an earphone body 2, wherein the shell 1 is arranged on the outside of the earphone body 2.

[0033] In a preferred embodiment, a microphone 10 is provided on a side of the housing 1 facing the earphone body 2 for detecting the intensity level of the sound signal.

[0034] In a preferred embodiment, the microphone 10 further includes a microphone sound receiving hole 101, and the microphone sound receiving hole 101 is disposed on the surface of the housing 1 for receiving sound of the earphone.

[0035] In a preferred embodiment, a speaker 21 is provided on one side of the earphone body 2, and the speaker 21 is provided on the contact surface between the earphone body 2 and the housing 1, and is located at the center of the earphone body 2, which helps to simulate the surround sound effect and improve the sound quality.

[0036] In a preferred embodiment, the microphone 10 is located above the speaker 21 and is disposed on the top of the housing 1. This helps to better detect the stable sound emitted by the speaker 21.

[0037] In a preferred embodiment, earmuffs 22 are provided at both ends of the earphone body 2 , and the earmuffs 22 are used to connect the ear and the earphone body 2 .

[0038] In a preferred embodiment, the earphone body 2 further includes a control panel 23 , which is located inside the earphone body 2 and is used to transmit and control audio signals.

[0039] In a preferred embodiment, the control board 23 further includes an audio chip 231 and a pin 232 , and the audio chip 231 is connected to the microphone 10 via the pin 232 .

[0040] In a preferred embodiment, the control board 23 includes a detection circuit 234 , which is connected in series with the pin 232 and the power supply terminal of the microphone 10 , and is used to output level signals of different levels to the audio chip 231 .

[0041] In a preferred embodiment, the control board 23 includes a plurality of pins 232 , and the plurality of pins 232 respectively correspond to level signals of different levels.

[0042] In a preferred embodiment, the control board 23 includes a plurality of groups of detection circuits 234 .

[0043] The detection circuit 234 extracts the modulation signal from the high-frequency amplitude modulation signal, which is the reverse process of the modulation. Figure 2, is the internal circuit diagram of the detection circuit 234, wherein VD is a detection diode, which uses the unidirectional conductivity of the diode to remove the lower half of the FM signal and retain the high-frequency carrier signal in the upper half; C1 is a high-frequency filter capacitor, which is used to remove the high-frequency carrier signal in the output signal of the VD detection diode; R1 is the load resistor of the detection circuit, and the current loop when the VD detection diode is turned on is composed of R1. At this time, the voltage drop of R1 is the output signal voltage of the detection circuit 234; C2 is a coupling capacitor. Because the detection circuit 234 contains unnecessary DC signals and necessary audio signals, the function of C2 is to allow the audio signal to pass through and prevent the unnecessary DC signal from passing through.

[0044] The earphone sound detection device provided by the utility model achieves a better hearing restoration effect by arranging a microphone on the side of the shell facing the earphone body, using the control board to output level signals of different levels to the audio chip, and then performing compensation according to the diffusion intensity compensation logic.

[0045] Example 2

[0046] The utility model provides an earphone sound detection device.

[0047] An earphone sound detection device comprises: a shell 1 and an earphone body 2, wherein the shell 1 is arranged on the outside of the earphone body 2.

[0048] In a preferred embodiment, a microphone 10 is provided on the surface of the housing 1 for detecting the intensity level of the sound signal. The detection time is after the headset is started and before each audio is played.

[0049] In a preferred embodiment, the microphone 10 further includes a microphone sound receiving hole 101, and the microphone sound receiving hole 101 is disposed on the surface of the housing 1 for receiving sound of the earphone.

[0050] In a preferred embodiment, a speaker 21 is provided on one side of the earphone body 2, and the speaker 21 is provided on the contact surface between the earphone body 2 and the housing 1. In order to improve the accuracy of sound leakage detection, the signal emitted by the speaker 21 is a signal with a regular frequency, that is, the frequency and amplitude of the signal are preset.

[0051] In a preferred embodiment, earmuffs 22 are provided at both ends of the earphone body 2 , and the earmuffs 22 are used to connect the ear and the earphone body 2 .

[0052] In a preferred embodiment, the earphone body 2 further includes a control panel 23 , which is located inside the earphone body 2 and is used to transmit and control audio signals.

[0053] In a preferred embodiment, the control board 23 further includes an audio chip 231 and a pin 232 , and the audio chip 231 is connected to the microphone 10 via the pin 232 .

[0054] In a preferred embodiment, the control board 23 includes a detection circuit 234 , which is connected in series with the pin 232 and the power supply terminal of the microphone 10 , and is used to output level signals of different levels to the audio chip 231 .

[0055] In a preferred embodiment, the control board 23 includes a plurality of pins 232 , and the plurality of pins 232 respectively correspond to level signals of different levels.

[0056] In a preferred embodiment, the control board 23 includes a plurality of groups of detection circuits 234 .

[0057] The earphone sound detection device provided by the utility model achieves a better hearing restoration effect by arranging a microphone on the side of the shell facing the earphone body, using the control board to output level signals of different levels to the audio chip, and then performing compensation according to the diffusion intensity compensation logic.

[0058] Example 3

[0059] The utility model provides an earphone sound detection device, such as Figure 3 As shown, Figure 3 This is a working diagram of the earphone sound detection device of the present invention.

[0060] An earphone sound detection device comprises: a shell 1 and an earphone body 2, wherein the shell 1 is arranged on the outside of the earphone body 2.

[0061] In a preferred embodiment, a microphone 10 is disposed on the surface of the housing 1 for detecting the intensity level of the sound signal.

[0062] In a preferred embodiment, the microphone 10 further includes a microphone sound receiving hole 101, and the microphone sound receiving hole 101 is disposed on the surface of the housing 1 for receiving sound of the earphone.

[0063] In a preferred embodiment, a speaker 21 is disposed on one side of the earphone body 2 , and the speaker 21 is disposed on the contact surface between the earphone body 2 and the housing 1 .

[0064] In a preferred embodiment, earmuffs 22 are provided at both ends of the earphone body 2 , and the earmuffs 22 are used to connect the ear and the earphone body 2 .

[0065] In a preferred embodiment, the earphone body 2 further includes a control panel 23 , which is located inside the earphone body 2 and is used to transmit and control audio signals.

[0066] In a preferred embodiment, the control board 23 further includes an audio chip 231 and a pin 232 , and the audio chip 231 is connected to the microphone 10 via the pin 232 .

[0067] In a preferred embodiment, the control board 23 includes a detection circuit 234 , which is connected in series with the pin 232 and the power supply terminal of the microphone 10 , and is used to output level signals of different levels to the audio chip 231 .

[0068] In a preferred embodiment, the control board 23 includes a plurality of pins 232 , and the plurality of pins 232 respectively correspond to level signals of different levels.

[0069] In a preferred embodiment, the control board 23 includes a plurality of detection circuits 234. The detection circuits 234 may be multiple groups. When the detected signal strength exceeds a set value, the detection circuits 234 output a high-level signal to the I / O interface of the audio chip 231.

[0070] When the earphones fit well and the leakage sound is small, such as Figure 3 In (a), when the earphones are not worn properly and the leakage sound is loud, such as Figure 3 In (b), it can be seen that the leaked sound signal diffuses around the housing 1, and the microphone 10 detects a larger leaked sound signal at this time. The detection circuit 234 divides it into a "high intensity" level according to the larger intensity, and outputs it to the I / O interface of the audio chip 231 through the pin 232. The audio chip 231 compensates for the sound of the earphone through the diffusion intensity compensation logic and outputs the sound.

[0071] At this time, the diffusion intensity compensation logic followed by the audio chip 231 increases the intensity of the sound output by the speaker 21, makes up for the diffused sound for the ears, and ensures high sound restoration.

[0072] The earphone sound detection device provided by the utility model achieves a better hearing restoration effect by arranging a microphone on the side of the shell facing the earphone body, using the control board to output level signals of different levels to the audio chip, and then performing compensation according to the diffusion intensity compensation logic.

[0073] Example 4

[0074] The utility model provides an earphone sound detection device, the working principle process of the earphone sound detection device includes:

[0075] An earphone sound detection device comprises: a shell 1 and an earphone body 2, wherein the shell 1 is arranged on the outside of the earphone body 2.

[0076] In a preferred embodiment, a microphone 10 is disposed on the surface of the housing 1 for detecting the intensity level of the sound signal.

[0077] In a preferred embodiment, the microphone 10 further includes a microphone sound receiving hole 101, and the microphone sound receiving hole 101 is disposed on the surface of the housing 1 for receiving sound of the earphone.

[0078] In a preferred embodiment, a speaker 21 is disposed on one side of the earphone body 2 , and the speaker 21 is disposed on the contact surface between the earphone body 2 and the housing 1 .

[0079] In a preferred embodiment, earmuffs 22 are provided at both ends of the earphone body 2 , and the earmuffs 22 are used to connect the ear and the earphone body 2 .

[0080] In a preferred embodiment, the earphone body 2 further includes a control panel 23 , which is located inside the earphone body 2 and is used to transmit and control audio signals.

[0081] like Figure 4 As shown, Figure 4 The figure is an internal circuit diagram of the earphone sound detection device.

[0082] In a preferred embodiment, the control board 23 also includes an audio chip 231 and a pin 232. The audio chip 231 is connected to the microphone 10 via the pin 232. The audio chip 231 is used to complete instructions, execute instructions (i.e., leakage compensation logic), and exchange information with the memory. The audio chip 231 is also connected to the memory, and the memory is used to exchange information with the audio chip. The speaker 21 is also connected to an audio decoder, and the other end of the audio decoder is connected to the audio chip 231. The audio decoder is used to receive the audio signal of the speaker, encode the audio signal, and convert it into other analog audio signal output.

[0083] In a preferred embodiment, the control board 23 includes a detection circuit 234, which is connected in series with the pin 232 and the power supply terminal of the microphone 10, and is used to output level signals of different levels to the audio chip 231. A battery is provided outside the earphone sound detection device to power the earphone sound detection device, and an antenna is connected to the outside of the control board 23, and the antenna is used to receive electromagnetic waves and convert them into electrical signals;

[0084] In a preferred embodiment, the control board 23 includes a plurality of pins 232 , and the plurality of pins 232 respectively correspond to level signals of different levels.

[0085] In a preferred embodiment, the control board 23 includes a plurality of groups of detection circuits 234 .

[0086] First, the user turns on the earphone. After the earphone is turned on, the speaker 21 emits a regular sound, which is a regular sound with a stable frequency.

[0087] At this time, if the user wears the headset on his head, when there is a certain degree of sealing difference between the two sides of the headset and the left and right ears of the user, that is, the headset is not worn properly, such as Figure 3 As shown in (b) in the figure, the regular sound will leak and diffuse around the shell.

[0088] A microphone 10 is provided on the surface of the housing 1 for detecting the intensity level of the sound signal. Different setting values ​​are used to identify the intensity level. The microphone 10 starts to detect the intensity of the sound signal of the above rule.

[0089] In a preferred embodiment, the control board 23 further includes an audio chip 231 and a pin 232 , and the audio chip 231 is connected to the microphone 10 via the pin 232 .

[0090] In a preferred embodiment, the control board 23 includes a plurality of pins 232 , and the plurality of pins 232 respectively correspond to level signals of different intensity levels.

[0091] For example, level signals of different intensity levels are divided into “default intensity”, “medium intensity”, and “high intensity”, and the intensity levels are divided into “medium intensity” and “high intensity”.

[0092] For example, when the detected sound signal strength is >6dB, it is considered high intensity;

[0093] When the detected sound signal strength is between 3dB-6dB, it is medium intensity;

[0094] When the detected sound signal strength is <3dB, it is the default strength.

[0095] The corresponding pins 232 are divided into 1# I / O pin, 2# I / O pin and 3# I / O pin.

[0096] After detecting the intensity level of the regular sound, the detection circuit 234 outputs a level signal to the pin 232 of the audio chip 231 .

[0097] After receiving the level signal, the audio chip 231 corresponds to the diffusion intensity compensation logic table according to the height of the different level signals, and makes corresponding corrections and outputs the sound. At this time, the user's ears receive the supplementary diffused sound, forming an accurate hearing sense.

[0098] The leakage compensation logic table is shown in Table 1. It can be seen that when the earphone is not worn properly on the ear, the microphone 10 detects obvious sound leakage, i.e., sound leakage. The audio chip 231 then directly makes corresponding compensation according to the leakage compensation logic table based on the different levels of level signals received by the pin. When the microphone detects that the sound intensity is <3dB, no compensation is required; when the sound intensity is detected to be between 3dB-6dB, 6dB is directly compensated; when the sound intensity is detected to be >6dB, 12dB is directly compensated; Figure 5 This is a sound signal curve diagram of the headphone sound detection device described in the present invention. The black curve represents the sound curve of distorted leakage sound caused by the headphone and the ear not being worn properly; the green curve represents the sound curve after the microphone detects sound leakage and compensates for it; and the purple curve represents the sound curve heard by the user of the headphone sound detection device described in the present invention. It can be seen that after leakage compensation, the sound hearing sense can be better restored.

[0099] Table 1 Leakage compensation logic table

[0100] Detection intensity reference value (dB) Restoration correction (dB) <3 0 3-6 6 >6 12

[0101] In summary, the utility model provides an earphone sound detection device, which arranges a microphone on the surface of the shell. When the earphone is not worn properly on the ear and the sealing is poor, there is a more obvious sound leakage phenomenon. Therefore, the microphone arrangement on the surface of the shell can detect the intensity level of the leaked sound. The audio chip then makes corresponding compensation according to the different levels of level signals received by the pin and the corresponding compensation logic table, so as to compensate the leaked sound for the ear of the user when using it, thereby ensuring accurate hearing and achieving good sound detection effect.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An earphone sound detection device, characterized in that: include: A housing and an earphone body, wherein the housing is arranged on the outside of the earphone body; Among them, a microphone is provided on the side of the shell facing the earphone body, which is used to detect the intensity level of the sound signal by receiving the sound signal; the earphone body also includes a control board, which is located inside the earphone body and is used to realize the transmission and control of the audio signal; the control board includes a detection circuit and a pin, and the detection circuit is connected in series with the pin and the power supply end of the microphone, and is used to output level signals of different levels.

2. The earphone sound detection device according to claim 1, characterized in that: The microphone also includes a microphone sound receiving hole, and the microphone sound receiving hole is arranged on the surface of the shell and is used for receiving sound of the earphone.

3. The earphone sound detection device according to claim 1, characterized in that: A speaker is arranged on one side of the earphone body, and the speaker is arranged on the contact surface between the earphone body and the shell.

4. The earphone sound detection device according to claim 3, characterized in that: The speaker is located at the center of the earphone body.

5. The earphone sound detection device according to claim 4, characterized in that: The microphone is located above the speaker and is arranged on the top of the housing.

6. The earphone sound detection device according to claim 1, characterized in that: The two ends of the earphone body are provided with earmuffs, and the earmuffs are used to connect the ears and the earphones.

7. The earphone sound detection device according to claim 1, characterized in that: The control board also includes an audio chip, and the audio chip is connected to the microphone through the pins.

8. The earphone sound detection device according to claim 1, characterized in that: The control board includes a plurality of pins, and the plurality of pins respectively correspond to level signals of different grades.

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