A headset

Abstract

The present invention proposes an earphone, comprising: an earpiece, the earpiece comprising a shell, the shell defining an active chamber, wherein when a user wears the earpiece, the active chamber acoustically couples the sound output side of a speaker to the user's ear; a partition layer, arranged between the speaker and the user's ear, for preventing foreign matter from entering the active chamber; a microphone, arranged in the active chamber, for receiving a reflected audio signal; a processor, controlling the speaker to emit a detection audio, and controlling the microphone to receive the reflected audio obtained after the detection audio is reflected, analyzing the acoustic characteristic information of the reflected audio to obtain foreign matter attachment information of the partition layer, thereby enabling the user to obtain accurate information on the degree and position of foreign matter attachment to the partition layer for targeted cleaning or replacement, and to obtain the cleaning effect, and the structure is simple.

Description

Technical Field

[0001] The present invention relates to the field of audio output equipment, and in particular to a headset. Background Art

[0002] Existing headphones include an earpiece, which includes a housing that defines an active chamber. When a user wears the earpiece, the active chamber acoustically couples the sound output side of the speaker to the user's ear; and a dust cover, positioned between the speaker and the user's ear, to prevent foreign matter from entering the active chamber. However, due to long-term wear, the dust cover inevitably becomes attached to foreign matter in the environment, thereby blocking the sound propagation path and reducing sound quality. Regular cleaning by the user can alleviate this problem to a certain extent, but it is difficult for the user to accurately determine the extent and location of the attached foreign matter for targeted cleaning or replacement, and it is also difficult for the user to determine the effectiveness of the cleaning, which may result in damage to the dust cover due to improper cleaning. Summary of the Invention

[0003] In response to the above-mentioned shortcomings in the prior art, the present invention provides an earphone, comprising: an earpiece, the earpiece comprising a shell, the shell defining an active chamber, and the active chamber acoustically coupling the sound output side of the speaker to the user's ear when the user wears the earpiece; a partition, arranged between the speaker and the user's ear, for preventing foreign objects from entering the active chamber; a microphone, arranged in the active chamber, for receiving reflected audio signals; a processor, controlling the speaker to emit detection audio, and controlling the microphone to receive the reflected audio obtained after the detection audio is reflected, and analyzing the acoustic characteristic information of the reflected audio to obtain foreign object attachment information of the partition.

[0004] Preferably, the processor includes: a control module, a detection audio generation module, a feature extraction module, and a diagnosis module; wherein, the control module controls the detection audio generation module to send a detection audio signal to the speaker and the diagnosis module, so that the speaker sends a detection audio corresponding to the detection audio signal; the control module controls the microphone to receive the reflected audio obtained after the detection audio is reflected, and obtains the reflected audio signal, and the reflected audio signal is processed and input into the feature extraction module; the feature extraction module extracts the acoustic feature information in the processed reflected audio signal, and inputs the acoustic feature information into the diagnosis module; the diagnosis module analyzes the detection audio signal and the processed reflected audio signal, obtains the foreign matter attachment information, and feeds back to the control module.

[0005] Preferably, it also includes a memory, which stores multiple groups of detection audio signals and a correspondence model between the acoustic feature information and the foreign matter attachment information; the foreign matter attachment information includes the degree and / or position of foreign matter attached to the partition.

[0006] Preferably, a prompter is further included, and the processor controls the prompter to prompt the user with the foreign matter attachment information.

[0007] Preferably, the system further comprises an instruction receiver for receiving a user's request to start foreign body attachment detection and controlling the processor to implement foreign body attachment detection.

[0008] Preferably, the acoustic feature information is at least one of the following feature information:

[0009] the resonant frequency of the spacer;

[0010] one or more Mel-frequency cepstral coefficients of the layer;

[0011] a frequency response of the spacer at one or more predetermined frequencies;

[0012] a frequency response of the barrier across one or more predetermined frequency ranges;

[0013] The spacer creates one or more characteristic impedances in the acoustic path.

[0014] Preferably, the processor further includes: an amplification module and an analog-to-digital conversion module; the amplification module is used to amplify the detection audio signal and provide it to the speaker; the analog-to-digital conversion module is used to perform analog-to-digital conversion on the reflected audio signal and input it into the feature extraction module.

[0015] Preferably, the amplification module has a two-stage amplification circuit.

[0016] Preferably, the processor further comprises: a filtering module; the filtering module is arranged between the analog-to-digital conversion module and the feature extraction module, and is used to remove noise associated with degradation of internal components of the earphone.

[0017] Preferably, a wearing detector is further included, and when the wearing detector detects that the user is wearing the earphone, the processor stops the relevant analysis of the foreign matter attachment information of the partition.

[0018] Preferably, the partition and the microphone are both fixedly connected to the shell, and there are multiple microphones distributed around the speaker to detect the degree of foreign matter attached to different positions of the partition.

[0019] Preferably, the microphone is fixedly connected to the shell, the microphone is single, the partition is circular and can be rotated to multiple positions along its own circular center axis relative to the shell, for detecting the degree of foreign matter attached at different positions of the partition.

[0020] Preferably, the shell outside the active chamber is provided with a slide groove, and the partition is arranged in the slide groove; the partition is divided into multiple identical fan-shaped areas by color, and the shell is provided with a mark to indicate the position of the microphone to the user.

[0021] Preferably, after the processor stops the relevant analysis of the foreign matter attachment information of the partition, based on the instruction received by the instruction receiver that the user wishes to perform ear canal detection, the processor controls the speaker to emit detection audio, and controls the microphone to receive the reflected audio obtained after the detection audio is reflected, and analyzes the acoustic feature information of the reflected audio to obtain the biometric information of the user's ear.

[0022] Preferably, the headset performs personalized equalization adjustment for the user based on the biometric information.

[0023] The present invention proposes an earphone, comprising: an earpiece, the earpiece comprising a shell, the shell defining an active chamber, wherein when a user wears the earpiece, the active chamber acoustically couples the sound output side of a speaker to the user's ear; a partition layer, arranged between the speaker and the user's ear, for preventing foreign matter from entering the active chamber; a microphone, arranged in the active chamber, for receiving a reflected audio signal; a processor, controlling the speaker to emit a detection audio, and controlling the microphone to receive the reflected audio obtained after the detection audio is reflected, analyzing the acoustic characteristic information of the reflected audio to obtain foreign matter attachment information of the partition layer, thereby enabling the user to obtain accurate information on the degree and position of foreign matter attachment to the partition layer for targeted cleaning or replacement, and to obtain the cleaning effect, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a schematic diagram of the internal structure of an earphone according to an embodiment of the present invention.

[0025] Figure 2 For the present invention Figure 1 A schematic diagram of a headset system according to an embodiment.

[0026] Figure 3 For the present invention Figure 1 A frequency response diagram of the earphone according to an embodiment, serving as acoustic characteristic information.

[0027] Figure 4 For the present invention Figure 1 A circuit diagram of an amplifying module of headphones according to an embodiment.

[0028] Among them, earphone-100, earpiece-200, shell-201, active chamber-202, speaker-203, partition-204, microphone-205, slide-206, processor-300, control module-301, detection audio generation module-302, feature extraction module-303, diagnosis module-304, filtering module-305, amplification module-306, analog-to-digital conversion module-307, memory-401, prompter-402, instruction receiver-403, wearing detector-404, resistors-R3, R5, R6, R9, R10, capacitor-C1, first operational amplifier-U1A, second operational amplifier-U1B. DETAILED DESCRIPTION

[0029] In order to address the problem that existing earphone dust covers are difficult to clean or replace accurately and promptly, which affects sound quality, the earphones provided by the present invention are implemented through the following technical solutions: Example

[0030] This embodiment provides a headset 100, see Figure 1-2 , including: an earpiece 200, each of which includes a housing 201, wherein the housing 201 defines an active chamber 202. When a user wears the earpiece 200, the active chamber 202 acoustically couples the sound output side of the speaker 203 to the user's ear; a partition 204, disposed between the speaker 203 and the user's ear, for preventing foreign matter from entering the active chamber 202; a microphone 205, disposed within the active chamber 202, for receiving a reflected audio signal; and a processor 300, for controlling the speaker 203 to emit a detection audio signal and controlling the microphone 205 to receive the reflected audio signal obtained after the detection audio signal is reflected, and analyzing the acoustic characteristics of the reflected audio signal to obtain information about foreign matter attached to the partition 204. When in use, the earphone 100 only needs to be placed in a quiet environment and the earpiece 200 is placed without any obstruction to begin detecting information about foreign matter attached to the partition 204.

[0031] Specifically, the processor 300 includes: a control module 301, a detection audio generation module 302, a feature extraction module 303, and a diagnosis module 304; wherein, the control module 301 controls the detection audio generation module 302 to send a detection audio signal to the speaker 203 and the diagnosis module 304, so that the speaker 203 sends a detection audio corresponding to the detection audio signal; the control module 301 controls the microphone 205 to receive the reflected audio obtained after the detection audio is reflected, and obtains the reflected audio signal, and the reflected audio signal is processed and input into the feature extraction module 303; the feature extraction module 303 extracts the acoustic feature information in the processed reflected audio signal, and inputs the acoustic feature information into the diagnosis module 304; the diagnosis module 304 analyzes the detection audio signal and the processed reflected audio signal, obtains the foreign matter attachment information, and feeds it back to the control module 301.

[0032] Specifically, the device further includes a memory 401 that stores multiple sets of detected audio signals, as well as a correspondence model between the acoustic feature information and the foreign object attachment information; the foreign object attachment information includes the degree and / or location of foreign objects attached to the interlayer. The correspondence model is machine-learned using historical pre-factory test data of the earphones.

[0033] Specifically, a prompter 402 is further included, and the processor 300 controls the prompter 402 to prompt the user with the foreign matter attachment information.

[0034] Specifically, it further includes an instruction receiver 403 for receiving a user's request to start foreign object attachment detection and controlling the processor 300 to implement foreign object attachment detection.

[0035] Specifically, the acoustic feature information is at least one of the following feature information:

[0036] The resonant frequency of the spacer 204;

[0037] One or more Mel-frequency cepstral coefficients of the layer 204;

[0038] The frequency response of the spacer 204 at one or more predetermined frequencies is shown in FIG. Figure 3 ;

[0039] The frequency response of the spacer 204 spans one or more predetermined frequency ranges. Figure 3 ;

[0040] The spacer 204 forms one or more characteristic impedances in the acoustic path.

[0041] Specifically, the processor 300 also includes: an amplification module 306 and an analog-to-digital conversion module 307; the amplification module 306 is used to amplify the detection audio signal and provide it to the speaker 203; the analog-to-digital conversion module 307 is used to perform analog-to-digital conversion on the reflected audio signal and input it into the feature extraction module 303.

[0042] Specifically, the amplification module 306 has a two-stage amplification circuit. Figure 4 The first-stage amplifier circuit primarily consists of a 4.5 kΩ resistor R5, a 10 kΩ resistor R6, a 100 kΩ resistor R3, and a 450 nF capacitor C1. The audio signal is coupled to the 450 nF capacitor C1 and then input into the first operational amplifier U1A for primary amplification. The second-stage amplifier circuit primarily consists of two 45 Ω resistors R9 and R10 and a second operational amplifier U1B. The output signal of the first-stage amplifier circuit is input into the second operational amplifier U1B for secondary amplification. This secondary amplified output signal then drives the speaker 203 to produce sound. The amplifier module 306 features high-fidelity characteristics, minimizing the impact of system noise.

[0043] Specifically, the processor 300 further includes a filtering module 305, which is provided between the analog-to-digital conversion module 307 and the feature extraction module 303 and is configured to remove noise associated with degradation of internal components of the earphone 100. The filtering module 305 is designed using a least mean square filter technique or other known digital filtering techniques.

[0044] Specifically, the earphone further includes a wearing detector 404 . When the wearing detector 404 detects that the user is wearing the earphone, the processor 300 stops the analysis of the foreign matter attachment information of the partition 204 .

[0045] Specifically, the partition layer 204 and the microphone 205 are both fixedly connected to the housing 201 . There are multiple microphones 205 distributed around the speaker 203 , and are used to detect the degree of foreign matter attached to different positions of the partition layer 204 .

[0046] Specifically, the microphone 205 is fixedly connected to the shell 201 , the microphone 205 is single, the partition 204 is circular and can be rotated to multiple positions along its own circular center axis relative to the shell 201 , for detecting the degree of foreign matter attached at different positions of the partition 204 .

[0047] Through the above two methods, the microphone 205 can be aimed at different positions of the partition 204, and then detect the degree of foreign matter attached at different positions of the partition 204. It can also detect the overall average degree of foreign matter attached to the partition 204 and the local average degree of foreign matter attached. Based on the detection results, the prompter 402 will prompt the user with accurate information including the degree and position of foreign matter attached to the partition 204, so as to facilitate subsequent targeted cleaning.

[0048] Specifically, the housing 201 is provided with a slot 206 around the active chamber 202, and the partition 204 is positioned within the slot 206. The partition 204 is divided into multiple identical sector-shaped areas by color, and the housing 201 is provided with markings indicating the position of the microphone 205 to the user, allowing the user to manually align the microphone 205 with different sector-shaped areas. The user can select all or some of the sector-shaped areas for detection, terminate the current foreign object attachment detection through the command receiver 403, and obtain the detection results for the selected sector-shaped area.

[0049] Specifically, after the processor 300 stops the relevant analysis of the foreign matter attachment information of the partition 204, according to the instruction received by the instruction receiver 403 that the user wishes to perform ear canal detection, the processor 300 controls the speaker 203 to emit detection audio, and controls the microphone 205 to receive the reflected audio obtained after the detection audio is reflected, and analyzes the acoustic feature information of the reflected audio to obtain the biometric information of the user's ear.

[0050] Specifically, the headset 100 performs personalized equalization adjustment for the user based on the biometric information, for example, performing active noise reduction processing based on the ear canal reflection characteristics of the user.

[0051] This embodiment provides an earphone 100, including: an earphone 200, each of which includes a shell 201, wherein the shell 201 defines an active chamber 202, and when a user wears the earphone 200, the active chamber 202 acoustically couples the sound output side of a speaker 203 to the user's ear; a partition 204, arranged between the speaker 203 and the user's ear, for preventing foreign matter from entering the active chamber 202; a microphone 205, arranged in the active chamber 202, for receiving a reflected audio signal; a processor 300, which controls the speaker 203 to emit a detection audio, and controls the microphone 205 to receive the reflected audio obtained after the detection audio is reflected, and analyzes the acoustic characteristics of the reflected audio to obtain information about foreign matter adhesion to the partition 204, thereby enabling the user to obtain accurate information about the degree and location of foreign matter adhesion to the partition 204 for targeted cleaning or replacement, and to obtain information about the cleaning effect, and has a simple structure.

[0052] It should be noted that the above content is a further detailed description of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation methods of the present invention are limited to these. Under the guidance of the above embodiments, those skilled in the art can make various improvements and modifications on the basis of the above embodiments, and these improvements or modifications fall within the scope of protection of the present invention.

Claims

1. A headset, characterized in that: include: an earpiece comprising a housing defining an active chamber that acoustically couples a sound output side of a speaker to an ear of a user when the earpiece is worn by the user; a partition, disposed between the speaker and the user's ear, for preventing foreign matter from entering the active chamber; a microphone disposed in the active chamber and configured to receive a reflected audio signal; a processor configured to control the speaker to emit a detection audio signal, and to control the microphone to receive the reflected audio signal obtained after the detection audio signal is reflected, and to analyze acoustic characteristic information of the reflected audio signal to obtain information about foreign matter adhesion on the partition; The microphone is fixedly connected to the housing, the microphone is single, the partition is circular and can be rotated to multiple positions along its own circular central axis relative to the housing, for detecting the degree of foreign matter attached to different positions of the partition; The acoustic characteristic information is the following characteristic information: the resonant frequency of the partition; one or more Mel-frequency cepstral coefficients of the partition; the frequency response of the partition at one or more predetermined frequencies; the frequency response of the partition across one or more predetermined frequency ranges; and one or more characteristic impedances formed by the partition in the acoustic path.

2. The earphone according to claim 1, wherein The processor includes: a control module, a detection audio generation module, a feature extraction module, and a diagnosis module; wherein the control module controls the detection audio generation module to send a detection audio signal to the speaker and the diagnosis module, so that the speaker sends a detection audio corresponding to the detection audio signal; the control module controls the microphone to receive the reflected audio obtained after the detection audio is reflected, and obtains a reflected audio signal, and the reflected audio signal is processed and input into the feature extraction module; the feature extraction module extracts the acoustic feature information from the processed reflected audio signal, and inputs the acoustic feature information into the diagnosis module; the diagnosis module analyzes the detection audio signal and the processed reflected audio signal, obtains the foreign matter attachment information, and feeds back to the control module.

3. The earphone according to claim 2, wherein It also includes a memory, which stores multiple groups of detection audio signals and a correspondence model between the acoustic feature information and the foreign matter attachment information; the foreign matter attachment information includes the degree and / or position of the foreign matter attached to the partition.

4. The earphone according to claim 3, wherein The system further includes a prompter, and the processor controls the prompter to prompt the user with the foreign matter attachment information.

5. The earphone according to claim 4, characterized in that It also includes an instruction receiver for receiving a user's request to start foreign body attachment detection and controlling the processor to implement foreign body attachment detection.

6. The earphone according to claim 5, characterized in that The processor further includes: an amplification module and an analog-to-digital conversion module; the amplification module is used to amplify the detection audio signal and provide it to the speaker; the analog-to-digital conversion module is used to perform analog-to-digital conversion on the reflected audio signal and input it into the feature extraction module.

7. The earphone according to claim 6, characterized in that The amplification module has a two-stage amplification circuit.

8. The earphone according to claim 7, wherein: The processor further includes a filtering module, which is disposed between the analog-to-digital conversion module and the feature extraction module and is configured to remove noise associated with degradation of internal components of the earphone.

9. The earphone according to claim 1, wherein It also includes a wearing detector. When the wearing detector detects that the user is wearing the earphone, the processor stops the relevant analysis of the foreign matter adhesion information of the partition.

10. The earphone according to claim 1, wherein The shell outside the active chamber is provided with a slide groove, and the partition is arranged in the slide groove; the partition is divided into a plurality of identical sector-shaped areas by color, and the shell is provided with a mark to indicate the position of the microphone to the user.

11. The earphone according to claim 1, wherein After the processor stops the relevant analysis of the foreign matter attachment information of the partition, based on the instruction received from the user that he wants to perform ear canal detection, the processor controls the speaker to emit detection audio, and controls the microphone to receive the reflected audio obtained after the detection audio is reflected, and analyzes the acoustic feature information of the reflected audio to obtain the biometric information of the user's ear.

12. The earphone according to claim 11, wherein The earphone performs personalized equalization adjustment for the user based on the biometric information.

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