Method and system for testing air permeability of acoustic screen cloth of earphone

Abstract

The invention provides a method and system for testing the air permeability of acoustic screen cloth of an earphone, and the method comprises the steps: driving a loudspeaker of a to-be-tested earphone according to a test signal, so as to enable the loudspeaker to work to generate airflow; detecting a first flow rate of an air flow flowing through the acoustic screen cloth of the to-be-detected earphone in a set time period; and testing the air permeability of the acoustic screen cloth according to the first flow velocity.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of air permeability testing of an acoustic mesh of an earphone, and more specifically, to a method and system for testing the air permeability of an acoustic mesh of an earphone. Background Art

[0002] The tuning mesh has a damping effect on sound waves, especially for simulating sound spikes and improving sound frequency characteristics. It is widely used in the electroacoustic industry and is suitable for electroacoustic products such as headphones, microphones, speakers, and microphones. As a tuning purpose, it can improve the audio characteristics of electroacoustic products. In addition, the tuning mesh also has the characteristics of uniform density, evenly spaced air holes, excellent thickness consistency, and good waterproof effect.

[0003] In the prior art, earphones are small in size, and the sound output area at the sound holes is even smaller. The acoustic mesh is installed at the sound holes, and it is impossible to confirm the specific air permeability, nor is it possible to confirm the consistency of the air permeability between different earphone products. Summary of the invention

[0004] One purpose of the embodiments of the present disclosure is to provide a method and system for testing the air permeability of an acoustic mesh fabric of an earphone.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for testing air permeability of an acoustic mesh fabric of an earphone is provided, comprising:

[0006] driving a speaker of the earphone to be tested according to the test signal so that the speaker operates to generate airflow;

[0007] Detecting a first flow velocity of an airflow flowing through the acoustic mesh of the earphone to be tested within a set time period;

[0008] The air permeability of the acoustic mesh is tested according to the first flow rate.

[0009] Optionally, the testing the air permeability of the acoustic mesh according to the first flow rate includes:

[0010] Compare the first flow rate with a set first threshold and a set second threshold; wherein the second threshold is greater than the first threshold;

[0011] When the first flow rate is greater than or equal to the first threshold value and less than or equal to the second threshold value, determining that the air permeability test result of the acoustic mesh is qualified;

[0012] When the first flow rate is less than the first threshold value, or the first flow rate is greater than the second threshold value, it is determined that the air permeability test result of the acoustic mesh is unqualified.

[0013] Optionally, the first flow rate is the maximum value and / or average value of the flow rate of the airflow flowing through the acoustic mesh of the earphone to be tested within the set time period.

[0014] Optionally, the test signal is a sinusoidal wave signal.

[0015] Optionally, the method further includes:

[0016] Detecting whether the input voltage across the speaker reaches a set voltage;

[0017] When the input voltage reaches the set voltage, the step of driving the speaker of the earphone to be tested according to the test signal is performed so that the speaker works to generate airflow.

[0018] Optionally, driving a speaker of the headset to be tested according to the test signal includes:

[0019] Controlling the sound card to output the test signal;

[0020] The power amplifier is controlled to amplify the test signal according to a set amplification factor and then output the amplified signal to the speaker, so as to drive the speaker to generate airflow.

[0021] Optionally, the method further includes:

[0022] Display and record the test results of the air permeability of the acoustic mesh of the earphone to be tested.

[0023] Optionally, the method further includes:

[0024] When the air permeability test result of the acoustic mesh is unqualified, an alarm is issued.

[0025] According to a second aspect of the present disclosure, a system for testing air permeability of an acoustic mesh of an earphone is provided, comprising:

[0026] A signal driving module, used to drive the speaker of the headset to be tested according to the test signal, so that the speaker works to generate airflow;

[0027] A flow rate detection module, used to detect a first flow rate of the airflow flowing through the acoustic mesh of the earphone to be tested within a set time period;

[0028] An air permeability testing module is used to test the air permeability of the acoustic mesh according to the first flow rate.

[0029] According to a third aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method described in the first aspect of the present disclosure is implemented.

[0030] Through the embodiments of the present disclosure, the speakers of the headphones to be tested are driven to generate airflow according to the test signal, and according to the first flow velocity of the airflow flowing through the acoustic mesh of the headphones to be tested within a set time period, it is possible to test whether the air permeability of the acoustic mesh is qualified; moreover, the first flow velocity can intuitively indicate the air permeability of the acoustic mesh of the headphones to be tested, so that the tester can confirm the consistency of the air permeability between different products according to the first flow velocity.

[0031] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0033] Figure 1 Schematic diagram of a system for testing the air permeability of an acoustic mesh fabric of an earphone according to an embodiment of the present disclosure;

[0034] Figure 2 It is a flow chart of a method for testing the air permeability of an acoustic mesh of an earphone according to an embodiment of the present disclosure;

[0035] Figure 3 A block diagram of a system for testing the air permeability of an acoustic mesh of an earphone according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0038] Technologies, methods and equipment known to persons of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered part of the specification.

[0039] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0040] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0041] <Method Example>

[0042] The present disclosure provides a method for testing the air permeability of an acoustic mesh of an earphone, and the method can be implemented by a system for testing the air permeability of an acoustic mesh of an earphone.

[0043] Figure 1 It is a schematic diagram of a testing system for the air permeability of the acoustic mesh of headphones according to an embodiment of the present disclosure.

[0044] like Figure 1 As shown, the air permeability testing system 1000 of the acoustic mesh of the earphone may include a host computer 1100 , a sound card 1200 , a power amplifier 1300 , an anemometer 1400 and a testing fixture 1500 .

[0045] The test fixture 1500 is used to fix the placement of the earphone to be tested.

[0046] The setting position of the anemometer 1400 ensures that the relative position relationship between the anemometer 1400 and the sound outlet of the earphone to be tested fixed on the test fixture 1500 remains unchanged, and the distance between the anemometer 1400 and the sound outlet of the earphone to be tested fixed on the test fixture 1500 is a set distance, wherein the set distance can be pre-set according to the application scenario or specific needs, for example, the set distance can be 1 cm.

[0047] The output end of the sound card 1200 is connected to the input end of the power amplifier 1300 , and the output end of the power amplifier 1300 is connected to the speaker of the earphone to be tested.

[0048] The host computer 1100 can control the sound card 1200 to output the test signal. The power amplifier 1300 is used to amplify the power of the test signal and then output it to the speaker of the headset to be tested.

[0049] The anemometer 1400 can detect the velocity of the air flow.

[0050] Figure 2 The present invention is a flow chart of a method for testing the air permeability of an acoustic mesh of an earphone according to an embodiment of the present disclosure.

[0051] like Figure 2 As shown, the method includes steps S2100 to S2300 as shown below:

[0052] Step S2100, driving the speaker of the headset to be tested according to the test signal, so that the speaker works to generate airflow.

[0053] In this embodiment, the earphone to be tested may be fixed on a test fixture in advance, and then the air permeability of the acoustic mesh of the earphone to be tested may be tested.

[0054] In one embodiment, the earphone to be tested can be a semi-finished component with a speaker and an acoustic mesh installed. The semi-finished component includes an earphone shell, a speaker, and a speaker lead. The earphone shell includes a chamber, a sound outlet, and an air vent. The speaker is assembled in the chamber, and the speaker divides the chamber into a front chamber and a rear chamber. The sound outlet and the air vent are connected to the front chamber respectively. The acoustic mesh is installed in the correct position using standard methods in the earphone production process. The acoustic mesh material is already cut and pasted on a hard frame, and the shape of the frame matches the shape of the sound outlet.

[0055] In another embodiment, the earphone to be tested may be a finished earphone that has completed all processing steps.

[0056] In one embodiment of the present disclosure, driving the speaker of the headset to be tested according to the test signal so that the speaker works to generate airflow can include: controlling the sound card to output the test signal, controlling the power amplifier to amplify the test signal according to a set amplification factor and then outputting it to the speaker of the headset to be tested, so as to drive the speaker to generate airflow.

[0057] In an embodiment where the earphone to be tested is a finished earphone, the power amplifier may be a power amplifier in the earphone to be tested. In an embodiment where the earphone to be tested is a semi-finished component, the power amplifier may be a power amplifier outside the semi-finished component.

[0058] In this embodiment, the set magnification factor can be pre-set based on a reference earphone with the same test conditions as the earphone to be tested. For earphones with the same test conditions, the corresponding magnification factors are the same.

[0059] Among them, the test conditions include headphone model, headphone assembly degree, acoustic mesh type, relative position relationship between the headphone sound outlet and the anemometer, etc.

[0060] In this embodiment, the power amplifier amplifies the test signal at a set amplification factor, which can ensure the accuracy of the test result.

[0061] In one embodiment of the present disclosure, the test signal may be a sine wave signal.

[0062] In this embodiment, the speaker of the earphone to be tested is driven according to the sine wave signal, so that the test result of the air permeability of the acoustic mesh fabric of the earphone to be tested can be more reliable.

[0063] Step S2200, detecting a first flow velocity of an airflow flowing through the acoustic mesh of the earphone to be tested within a set time period.

[0064] In this embodiment, the set time period may be the time period between receiving the start test instruction and the end test instruction input by the tester. For different headphones to be tested, the corresponding set time periods may be the same or different, which is not limited here.

[0065] Furthermore, the duration of the time period is set to be greater than the signal cycle duration of the test signal.

[0066] In this embodiment, the first velocity of the airflow flowing through the acoustic mesh of the earphone to be tested within a set period of time may be detected by an anemometer. The anemometer may be arranged at a position close to the acoustic mesh of the earphone to be tested, and when the speaker is working and generates airflow, the airflow drives the fan of the anemometer to rotate, so that the anemometer detects the velocity of the airflow.

[0067] In one embodiment of the present disclosure, the first flow rate is a maximum value and / or an average value of the flow rate of the airflow flowing through the acoustic mesh of the earphone to be tested within a set time period.

[0068] This embodiment tests the air permeability of the acoustic mesh cloth according to the first flow velocity of the airflow flowing through the acoustic mesh cloth of the earphone to be tested within a set time period, so that the obtained test result can be more reliable.

[0069] Step S2300: testing the air permeability of the acoustic mesh according to the first flow rate.

[0070] In one embodiment of the present disclosure, testing the air permeability of the acoustic mesh according to the first flow rate may include: comparing the first flow rate with a set first threshold value and a set second threshold value; when the first flow rate is greater than or equal to the first threshold value and less than or equal to the second threshold value, determining that the air permeability test result of the acoustic mesh is qualified; when the first flow rate is less than the first threshold value or the first flow rate is greater than the second threshold value, determining that the air permeability test result of the acoustic mesh is unqualified. Wherein, the second threshold value is greater than the first threshold value.

[0071] In this embodiment, the first threshold and the second threshold can be determined in advance based on the first flow velocity of the airflow flowing through the acoustic mesh of a reference earphone whose speaker is driven by a test signal to generate airflow within a set time period, wherein the test conditions of the reference earphone and the earphone to be tested are exactly the same.

[0072] When the first flow rate is greater than or equal to the first threshold and less than or equal to the second threshold, it can be determined that the air permeability of the acoustic mesh cloth of the earphone to be tested is within the qualified range and the acoustic mesh cloth is completely fitted to the frame of the earphone to be tested. Therefore, it can be determined that the air permeability test result of the acoustic mesh cloth of the earphone to be tested is qualified.

[0073] When the first flow rate is less than the first threshold, it can be determined that the air permeability of the acoustic mesh cloth of the earphone to be tested is small, which affects the sound effect of the earphone to be tested. Therefore, it can be determined that the air permeability test result of the acoustic mesh cloth of the earphone to be tested is unqualified.

[0074] When the first flow rate is greater than the second threshold, it can be determined that the air permeability of the acoustic mesh of the earphone to be tested is large. It may be that the acoustic mesh is not completely fitted to the frame of the earphone to be tested. Therefore, it can be determined that the air permeability test result of the acoustic mesh of the earphone to be tested is unqualified.

[0075] Through the embodiments of the present disclosure, the speakers of the headphones to be tested are driven to generate airflow according to the test signal, and according to the first flow velocity of the airflow flowing through the acoustic mesh of the headphones to be tested within a set time period, it is possible to test whether the air permeability of the acoustic mesh is qualified; moreover, the first flow velocity can intuitively indicate the air permeability of the acoustic mesh of the headphones to be tested, so that the tester can confirm the consistency of the air permeability between different products according to the first flow velocity.

[0076] In one embodiment of the present disclosure, before executing step S2100, the method may further include: detecting whether the input voltage at both ends of the speaker reaches a set voltage; when the input voltage reaches the set voltage, executing steps S2100 to S2300 to test the air permeability of the acoustic mesh of the earphone to be tested.

[0077] In one embodiment, the input voltage at both ends of the speaker may be detected by a multimeter.

[0078] In another embodiment, the input voltage at both ends of the speaker may be detected by a voltage sampling circuit.

[0079] In this embodiment, the set voltage may be a rated input voltage that can ensure the normal operation of the speaker.

[0080] In this embodiment, when the input voltage at both ends of the speaker reaches the set voltage, the air permeability of the acoustic mesh of the earphone to be tested is tested, which can ensure the accuracy of the test result and avoid the problem of unqualified air permeability test result of the acoustic mesh of the earphone to be tested due to the speaker not working because the input voltage does not reach the set voltage.

[0081] In one embodiment of the present disclosure, the method further includes: displaying and recording the test results of the air permeability of the acoustic mesh of the earphone to be tested.

[0082] In this embodiment, by displaying and recording the test results of the air permeability of the acoustic mesh cloth of the earphones to be tested, the test personnel can intuitively obtain the test results of the air permeability of the acoustic mesh cloth of the earphones to be tested, which is convenient for subsequent test personnel to trace the test results of the air permeability of the acoustic mesh cloth of the earphones to be tested.

[0083] Furthermore, when displaying and recording the test results of the air permeability of the acoustic mesh of the earphone to be tested, the first flow velocity of the airflow flowing through the acoustic mesh of the earphone to be tested within a set time period can also be displayed and recorded, so that subsequent testers can trace back the test results of the air permeability of the acoustic mesh of the earphone to be tested.

[0084] In one embodiment of the present disclosure, the method further includes: issuing an alarm when the air permeability test result of the acoustic mesh is unqualified.

[0085] This embodiment sends out an alarm when the air permeability test result of the acoustic mesh is unqualified, which can remind the tester to repair the headphones under test, so as to improve the pass rate of the headphones leaving the factory.

[0086] <System Embodiment>

[0087] This embodiment provides a system for testing the air permeability of an acoustic mesh of an earphone. In one aspect, the testing system may include the aforementioned system 1000 for testing the air permeability of an acoustic mesh of an earphone.

[0088] On the other hand, Figure 3 As shown, the air permeability testing system 3000 of the acoustic mesh of the earphone may include a signal driving module 3100 , a flow rate detection module 3200 and an air permeability testing module 3300 .

[0089] The signal driving module 3100 is used to drive the speaker of the earphone to be tested according to the test signal, so that the speaker works to generate airflow.

[0090] The flow rate detection module 3200 is used to detect a first flow rate of the airflow flowing through the acoustic mesh of the headphone to be tested within a set time period.

[0091] The air permeability testing module 3300 is used to test the air permeability of the acoustic mesh according to the first flow rate.

[0092] In one embodiment of the present disclosure, the testing of the air permeability of the acoustic mesh according to the first flow rate includes:

[0093] Compare the first flow rate with a set first threshold and a set second threshold; wherein the second threshold is greater than the first threshold;

[0094] When the first flow rate is greater than or equal to the first threshold value and less than or equal to the second threshold value, determining that the air permeability test result of the acoustic mesh is qualified;

[0095] When the first flow rate is less than the first threshold value, or the first flow rate is greater than the second threshold value, it is determined that the air permeability test result of the acoustic mesh is unqualified.

[0096] In one embodiment of the present disclosure, the first flow rate is the maximum value and / or average value of the flow rate of the airflow flowing through the acoustic mesh of the earphone to be tested within the set time period.

[0097] In one embodiment of the present disclosure, the test signal is a sine wave signal.

[0098] In one embodiment of the present disclosure, the test system 3000 further includes:

[0099] A module for detecting whether the input voltage at both ends of the speaker reaches a set voltage;

[0100] The signal driving module 3100 , the flow rate detection module 3200 and the air permeability testing module 3300 operate when the input voltage reaches the set voltage.

[0101] In one embodiment of the present disclosure, the step of driving the speaker of the headset to be tested according to the test signal includes:

[0102] Controlling the sound card to output the test signal;

[0103] The power amplifier is controlled to amplify the test signal according to a set amplification factor and then output the amplified signal to the speaker, so as to drive the speaker to generate airflow.

[0104] In one embodiment of the present disclosure, the test system 3000 further includes:

[0105] A module for displaying and recording the test results of the air permeability of the acoustic mesh of the earphone to be tested.

[0106] In one embodiment of the present disclosure, the test system 3000 further includes:

[0107] A module for issuing an alarm when the air permeability test result of the acoustic mesh is unqualified.

[0108] <Readable Storage Medium Embodiment>

[0109] This embodiment provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the method described in any method embodiment of the present disclosure is executed.

[0110] The present invention may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present invention.

[0111] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0112] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0113] The computer program instructions for performing the operation of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. Computer-readable program instructions may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of the computer-readable program instructions, and the electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present invention.

[0114] Various aspects of the present invention are described herein with reference to the flow charts and / or block diagrams of the methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each box of the flow chart and / or block diagram and the combination of each box in the flow chart and / or block diagram can be implemented by computer-readable program instructions.

[0115] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0116] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0117] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a part of a module, a program segment or an instruction, and a part of the module, a program segment or an instruction contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0118] Embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A method for testing the air permeability of an acoustic mesh fabric of an earphone, characterized in that: include: driving a speaker of the earphone to be tested according to the test signal so that the speaker operates to generate airflow; Detecting a first flow velocity of an airflow flowing through the acoustic mesh of the earphone to be tested within a set time period; The air permeability of the acoustic mesh is tested according to the first flow rate.

2. The method according to claim 1, characterized in that The step of testing the air permeability of the acoustic mesh according to the first flow rate comprises: Compare the first flow rate with a set first threshold and a set second threshold; wherein the second threshold is greater than the first threshold; When the first flow rate is greater than or equal to the first threshold value and less than or equal to the second threshold value, determining that the air permeability test result of the acoustic mesh is qualified; When the first flow rate is less than the first threshold value, or the first flow rate is greater than the second threshold value, it is determined that the air permeability test result of the acoustic mesh is unqualified.

3. The method according to claim 1, characterized in that The first flow rate is the maximum value and / or average value of the flow rate of the airflow flowing through the acoustic mesh of the earphone to be tested within the set time period.

4. The method according to claim 1, characterized in that: The test signal is a sine wave signal.

5. The method according to claim 1, characterized in that The method further comprises: Detecting whether the input voltage across the speaker reaches a set voltage; When the input voltage reaches the set voltage, the step of driving the speaker of the earphone to be tested according to the test signal is performed so that the speaker works to generate airflow.

6. The method according to claim 1, characterized in that The step of driving the speaker of the earphone to be tested according to the test signal comprises: Controlling the sound card to output the test signal; The power amplifier is controlled to amplify the test signal according to a set amplification factor and then output the amplified signal to the speaker, so as to drive the speaker to generate airflow.

7. The method according to claim 1, characterized in that The method further comprises: Display and record the test results of the air permeability of the acoustic mesh of the earphone to be tested.

8. The method according to claim 7, characterized in that The method further comprises: When the air permeability test result of the acoustic mesh is unqualified, an alarm is issued.

9. A system for testing the air permeability of an acoustic mesh of an earphone, characterized in that: include: A signal driving module, used to drive the speaker of the headset to be tested according to the test signal, so that the speaker works to generate airflow; A flow rate detection module, used to detect a first flow rate of the airflow flowing through the acoustic mesh of the earphone to be tested within a set time period; An air permeability testing module is used to test the air permeability of the acoustic mesh according to the first flow rate.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

Images