Method, test device, electronic equipment and medium for testing earphone wearing consistency

Abstract

The embodiment of the present application provides a method, a testing device, an electronic device and a medium for testing the wearing consistency of headphones, the method comprising: sending a test signal to the headphones to be tested; receiving an audio signal sent by the headphones to be tested based on the test signal; determining a frequency response curve according to the audio signal; obtaining discrete coefficients corresponding to multiple frequency response curves based on multiple frequency response curves corresponding to multiple test objects; and obtaining the wearing consistency of the headphones to be tested based on the discrete coefficients. The testing method directly reflects the quality of the wearing consistency of the headphones by calculating the discrete coefficients of the frequency response curves.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of earphone technology, and in particular to a method, a testing device, an electronic device and a medium for testing earphone wearing consistency. Background Art

[0002] In daily life, people cannot do without headphones when watching TV or listening to music. Headphones include: full-in-ear headphones, semi-in-ear headphones, etc. Among them, semi-in-ear headphones have a large market due to their comfortable wearing advantages. However, semi-in-ear headphones have the problem of poor wearing consistency due to different ear canal sizes of different users, that is, for the same pair of semi-in-ear headphones, different users may have different hearing sensations; full-in-ear headphones also have a smaller problem of poor wearing consistency due to different ear canal sizes of different users. To this end, improving the wearing comfort of headphones for different users, reducing the wearing problems caused by different ear canal sizes, and thus improving the problem of reduced low-frequency hearing sensation caused by wearing is one of the problems that urgently needs to be solved.

[0003] At present, the industry generally judges whether the headphones are suitable for real people by observing whether the low-frequency band of the frequency response curve drops, but there is no reliable and complete method to test and analyze the consistency of headphone wearing. Summary of the invention

[0004] The embodiments of the present application provide a method, a testing device, an electronic device, and a medium for testing the wearing consistency of headphones, which can scientifically test the wearing consistency of headphones.

[0005] In order to solve the above technical problems, an embodiment of the present application provides a method for testing earphone wearing consistency, including:

[0006] Send a test signal to the earphone under test; receive an audio signal sent by the earphone under test based on the test signal; determine a frequency response curve according to the audio signal; obtain discrete coefficients corresponding to the multiple frequency response curves based on multiple frequency response curves corresponding to multiple test objects; and obtain the wearing consistency of the earphone under test based on the discrete coefficients.

[0007] In addition, the method for obtaining the discrete coefficients corresponding to the plurality of frequency response curves includes: discrete coefficient = sqrt(((x1-x) 2 +(x2-x) 2 +......(x n -x) 2 ) / (n-1)) / ((x1+x2+…+x n ) / n), where sqrt represents the square root function, n represents the number of the test objects, x1 to x nrepresents the sensitivity value of the frequency response curve corresponding to the test object, and x is from x1 to x n The sum of divided by n gives the average.

[0008] In addition, the method for testing the wearing consistency of headphones is based on the discrete coefficient, and the method for obtaining the wearing consistency of the headphones to be tested includes: comparing the discrete coefficient with the preset discrete coefficient; if the discrete coefficient is greater than the preset discrete coefficient, it is determined that the wearing consistency of the headphones to be tested is poor; if the discrete coefficient is less than or equal to the preset discrete coefficient, it is determined that the wearing consistency of the headphones to be tested is good.

[0009] In addition, the preset coefficient of dispersion of the method for testing the consistency of earphone wearing is 0.1-0.2.

[0010] In addition, the frequency of the audio signal of the method for testing the wearing consistency of headphones is 20Hz-10KHz.

[0011] In addition, before obtaining the discrete coefficients corresponding to the multiple frequency response curves, it also includes: judging whether the frequency response curve is normal, if the frequency response curve is abnormal, adjusting the test environment of the headphones to be tested and re-obtaining the audio signal corresponding to the frequency response curve, and re-obtaining the frequency response curve.

[0012] In addition, based on multiple frequency response curves obtained when the test subject wears the headphones to be tested, discrete coefficients corresponding to the multiple frequency response curves are obtained, including: obtaining sub-frequency response curves corresponding to a preset frequency band range in each frequency response curve; and calculating the discrete coefficients based on the multiple sub-frequency response curves.

[0013] Another aspect of the present application embodiment further provides a testing device for analyzing earphone wearing consistency, including a device for performing the above

[0014] A module for any method.

[0015] According to another aspect of an embodiment of the present application, an electronic device is provided. The electronic device includes a memory and a processor. The memory stores instructions that can be executed by the processor. When the instructions are executed by the processor, the above-mentioned method steps can be implemented.

[0016] According to another aspect of the embodiments of the present application, a computer storage medium is provided, which stores a computer program. When the computer program is executed by a processor, the above-mentioned method for testing the wearing consistency of headphones is implemented.

[0017] The technical solution provided by the embodiments of the present application has at least the following advantages:

[0018] In the technical solution of the embodiment of the present application, a test signal is sent to the earphone to be tested; an audio signal sent by the earphone to be tested based on the test signal is received; a frequency response curve is determined according to the audio signal; based on a plurality of the frequency response curves corresponding to a plurality of test objects, discrete coefficients corresponding to the plurality of frequency response curves are obtained; based on the discrete coefficients, the wearing consistency of the earphone to be tested is obtained. Thus, compared with the prior art in which the wearing consistency of the earphone cannot be tested, the embodiment of the present application has a complete and specific solution for testing the wearing consistency of the earphone, and realizes scientific and effective testing and analysis of the wearing consistency of the earphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. Unless otherwise specified, the pictures in the drawings do not constitute a scale limitation. In order to more clearly illustrate the embodiments of the present application or the technical solutions in the traditional technology, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A flow chart of a method for testing earphone wearing consistency provided in an embodiment of the present application;

[0021] Figure 2 Another flow chart of a method for testing earphone wearing consistency provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the structure of a testing device for analyzing earphone wearing consistency provided in one embodiment of the present application;

[0023] Figure 4 A functional block diagram of an electronic device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0024] The following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present application, many technical details are provided in order to enable the reader to better understand the embodiments of the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed for protection in the present application can be implemented.

[0025] Figure 1 A flow chart of a method for testing earphone wearing consistency provided in an embodiment of the present application, Figure 2 Another flow chart of a method for testing earphone wearing consistency provided in an embodiment of the present application. Figure 1 and Figure 2 As shown, the method for testing earphone wearing consistency includes the following steps:

[0026] like Figure 1 As shown, in step 101, a test signal is sent to the headset to be tested.

[0027] Specifically, it is necessary to first provide a headset to be tested and multiple test subjects, and each test subject will wear the headset to be tested for testing. In some embodiments, the headset to be tested can be a semi-in-ear headset, for example, a semi-in-ear TWS headset (True Wireless Stereo). To further ensure the accuracy of the test, the multiple test subjects include males and females. Specifically, Figure 2 As shown, step 101 may include: step 11, preparing the headphones to be tested and the digital microphone for receiving the sound; step 12, randomly finding 25 adult males and adult females for wearing test as test subjects. Specifically, it is necessary to prepare the headphones to be tested with a complete cavity structure and ensure that the cavity is well sealed. In addition, a digital microphone that can work normally and an AudioPrecision tester for audio debugging are required; among multiple test subjects, the number of males and females can be the same.

[0028] Then, you need to build a test environment and connect the test path. The wire flying out of the speaker of the headset to be tested is connected to the Audio Precision tester through a BNC line, so that the Audio Precision tester can control the speaker of the headset to be tested to make sound. The digital microphone with flying wire is connected to the battery for power supply, and the digital microphone is placed in the sound outlet of the headset to be tested, and the flying wire hole is sealed with rubber glue to ensure the sealing of the headset cavity to be tested, so as to obtain the audio signal of the headset to be tested. Then, the alligator clips of the BNC adapter are respectively clamped to the output end (output) and the ground end (GND) of the digital microphone, and the other end of the BNC adapter is connected to the input end of the Audio Precision tester, so that the Audio Precision tester can obtain the audio signal output by the headset to be tested and analyze it to obtain the frequency response curve.

[0029] After the test environment is set up, the Audio Precision tester can be used to modify the relevant parameters to send test signals to the headphones under test.

[0030] like Figure 1 As shown, in step 102, an audio signal sent from the headset to be tested based on a test signal is received.

[0031] Specifically, Figure 2As shown, in step 13, after the test subject has finished wearing the headphones, the Audio Precision tester modifies the relevant parameters and sends a test signal to the headphones to be tested so that the speakers of the headphones to be tested send a stable audio signal from 20Hz to 10KHz. The audio signal can be collected by the digital microphone.

[0032] like Figure 1 As shown, in step 103, a plurality of frequency response curves are obtained, each of which is obtained based on an audio signal emitted by the earphone to be tested worn by the corresponding test subject.

[0033] Specifically, Figure 2 As shown, in step 14, the data microphone is placed at the sound outlet of the headphone to be tested, and receives the audio signal emitted by the speaker of the headphone to be tested, and obtains the frequency response curve after being processed and analyzed by the Audio Precision tester.

[0034] Specifically, the Audio Precision tester receives audio signals received by a digital microphone, and can batch process the data in the acquired audio signals at one time during the data analysis process, and finally obtains the corresponding frequency response curve, saving the time spent on exporting data one by one.

[0035] like Figure 2 As shown, the method may further include step 15, determining whether the frequency response curve is normal. If not, proceed to step 16, check the test equipment and the test path connection and re-wear the headphones to be tested. If yes, proceed to step 17, maintain the current state, repeat the test twice, until the test of all test objects is completed.

[0036] That is, before obtaining the discrete coefficient, the method further includes: determining whether the frequency response curve is normal; if the frequency response curve is abnormal, adjusting the test environment of the headphone to be tested and re-obtaining the adjusted frequency response curve.

[0037] Specifically, the following standards can be used to determine whether the frequency response curve is normal:

[0038] (1) Is there a sudden drop at low frequency? A small drop is allowed. This is caused by leakage during wearing and is a normal phenomenon.

[0039] (2) Check whether there are too many or too sharp burrs on the frequency response curve (this may be caused by the experimental environment. Check whether there are any abnormalities in the test environment in time);

[0040] (3) Whether it conforms to the overall trend of the frequency response curve. If the trends of multiple frequency response curves are consistent, it means that the frequency response curve test is basically accurate.

[0041] refer to Figure 1, step 104, based on the multiple frequency response curves corresponding to the test object, obtain the discrete coefficients corresponding to the multiple frequency response curves.

[0042] Specifically, refer to Figure 2 , Step 18, export the frequency response curve from the Audio Precision tester and calculate the dispersion coefficient.

[0043] The method to obtain the discrete coefficient can be: Discrete coefficient = sqrt(((x1-x) 2 +(x2-x) 2 +......(x n -x) 2 ) / (n-1)) / ((x1+x2+…+x n ) / n) to calculate the discrete coefficient. Wherein, sqrt represents the square root function, n represents the number of the test objects, x1 to x n represents the sensitivity value of the frequency response curve corresponding to the test object, and x is from x1 to x n The sum of divided by n gives the average.

[0044] In some embodiments, in order to reduce the amount of calculation, the method for obtaining the discrete coefficient may further include: obtaining a corresponding sub-frequency response curve within a preset frequency band in each frequency response curve; and calculating the discrete coefficient based on multiple sub-frequency response curves. The preset frequency band is generally a low frequency band, for example, the preset frequency band may be 20 Hz-100 Hz.

[0045] Step 105: Obtain the wearing consistency of the earphone to be tested based on the dispersion coefficient.

[0046] The dispersion coefficient can reflect the degree of dispersion of the data. The larger the dispersion coefficient, the greater the degree of dispersion of the data. Correspondingly, for the test of the wearing consistency of the earphones, the larger the dispersion coefficient, the worse the wearing consistency. Accordingly, based on the dispersion coefficient, the method for obtaining the wearing consistency of the earphones to be tested includes: comparing the dispersion coefficient with the preset dispersion coefficient; if the dispersion coefficient is greater than the preset dispersion coefficient, it is determined that the wearing consistency of the earphones to be tested is poor; if the dispersion coefficient is less than or equal to the preset dispersion coefficient, it is determined that the wearing consistency of the earphones to be tested is good.

[0047] The embodiments of the present application used different finished earphones for repeated testing and found that the dispersion coefficient was stable between 0.1-0.2, and the corresponding preset dispersion coefficient was 0.1-0.2.

[0048] In addition, by analyzing the dispersion coefficient distribution curves of six semi-in-ear TWS earphones with good user experience, it can be found that when the dispersion coefficient is around 0.15, the dispersion coefficient curves of the six earphones are relatively dense, and the dispersion coefficients of the low-frequency bands of four earphones are distributed around 0.15. Therefore, 0.15 can also be selected as the preset dispersion coefficient to measure the wearing consistency of the earphones to be tested. It should be noted that the earphones used to determine the preset dispersion coefficient cover as many sizes of earphones on the market as possible and with good user feedback. Therefore, the preset dispersion coefficient of 0.15 has a certain universality and can be applied to the wearing consistency test of many earphones.

[0049] Specifically, refer to Figure 2 , step 19, determining whether the coefficient of dispersion exceeds 0.15, if so, it indicates that the wearing consistency is poor, if not, it indicates that the wearing consistency is good.

[0050] In an embodiment of the present application, a method for testing the wearing consistency of headphones is provided for the first time. The relationship between the discrete coefficient corresponding to the headphones to be tested and the wearing consistency of the headphones to be tested is utilized, and the wearing consistency of the headphones to be tested is directly reflected by calculating the discrete coefficient of the frequency response curve corresponding to the headphones to be tested. A preset discrete coefficient is also provided, and the discrete coefficient of the headphones to be tested is compared with the preset discrete coefficient, thereby realizing a scientific and effective way to obtain the wearing consistency of the headphones to be tested. Moreover, the preset discrete coefficient is obtained by calculating and testing finished headphones of all sizes on the market with good user feedback, and can be applied to the wearing consistency testing of many finished headphones, thereby improving the wide applicability and functionality of the method for analyzing the wearing consistency of headphones.

[0051] An embodiment of the present application also provides a testing device for analyzing the wearing consistency of headphones, and the testing device includes a module that can be used to implement the method for testing the wearing consistency of headphones provided in the above embodiment. Figure 3 A schematic diagram of the structure of a testing device provided in an embodiment of the present application.

[0052] Specifically, if Figure 3 As shown, the test device includes: an output module 301, which is used to generate and send a test signal, and the headphone to be tested outputs an audio signal after receiving the test signal; a digital microphone 303, which is used to collect the audio signal output by the headphone to be tested; a processing module 304, which is used to collect and digitally process the audio signal received by the digital microphone, and obtain and derive a frequency response curve based on the audio signal; an acquisition module 305, which is used to obtain a discrete coefficient based on a plurality of the frequency response curves, and obtain the wearing consistency of the headphone to be tested based on the discrete coefficient.

[0053] Accordingly, during the test using the test device, the test device also includes a headset 302 to be tested.

[0054] In addition, in some embodiments, the processing module 304 is further used to determine whether the frequency response curve is normal. If the frequency response curve is abnormal, it is instructed to adjust the test environment of the headset to be tested and re-acquire the adjusted frequency response curve.

[0055] It is not difficult to find that the embodiment of the test device and the aforementioned method for testing earphone wearing consistency can be implemented in conjunction with each other. Therefore, the relevant technical details mentioned in the aforementioned embodiment are still valid in this embodiment, and will not be repeated here to reduce repetition.

[0056] Accordingly, an embodiment of the present application further provides an electronic device, Figure 4 A functional block diagram of an electronic device provided in an embodiment of the present application.

[0057] refer to Figure 4 The electronic device includes a memory 401 and a processor 402. The memory 401 stores instructions that can be executed by the processor 402. When the instructions are executed by the processor 402, the method for testing the wearing consistency of headphones provided in the above embodiment can be implemented.

[0058] Among them, the memory 401 and the processor 402 are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors 402 and various circuits of the memory 401 together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art, and therefore, are not further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The information processed by the processor 402 is transmitted on a wireless medium through an antenna, and further, the antenna also receives information and transmits the information to the processor 402.

[0059] The processor 402 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management and other control functions. The memory 401 can be used to store information used by the processor when performing operations.

[0060] Accordingly, an embodiment of the present application further provides a computer storage medium storing a computer program, which, when executed by a processor, implements the method for testing earphone wearing consistency in the first or second embodiment.

[0061] Those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including a number of instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0062] Those skilled in the art can understand that the above-mentioned embodiments are specific examples for implementing the present application, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present application. Any person skilled in the art can make their own changes and modifications without departing from the spirit and scope of the present application, so the scope of protection of the present application shall be based on the scope defined in the claims.

Claims

1. A method for testing earphone wearing consistency, characterized in that: include: Provide the headphones to be tested and multiple test objects; After any of the test subjects wears the earphone to be tested, sending a test signal to the earphone to be tested; Receiving an audio signal sent from the headset to be tested based on the test signal; Determine a frequency response curve according to the audio signal; Based on the multiple frequency response curves corresponding to the multiple test objects, obtaining discrete coefficients corresponding to the multiple frequency response curves; Based on the dispersion coefficient, the wearing consistency of the earphone to be tested is obtained.

2. The method for testing earphone wearing consistency according to claim 1, characterized in that: The obtaining of the discrete coefficients corresponding to the plurality of frequency response curves comprises: Coefficient of dispersion = sqrt(((x1-x) 2 +(x2-x) 2 +......(x n -x) 2 ) / (n-1)) / ((x1+x2+…+x n ) / n), where sqrt represents the square root function, n represents the number of the test objects, x1 to x n represents the sensitivity value of the frequency response curve corresponding to the test object, and x is from x1 to x n The sum of divided by n gives the average.

3. The method for testing earphone wearing consistency according to claim 1, characterized in that: The acquiring the wearing consistency of the headset to be tested based on the dispersion coefficient includes: Comparing the discrete coefficient with a preset discrete coefficient; If the dispersion coefficient is greater than the preset dispersion coefficient, it is determined that the wearing consistency of the headset to be tested is poor; If the dispersion coefficient is less than or equal to the preset dispersion coefficient, it is determined that the wearing consistency of the earphone to be tested is good.

4. The method for testing earphone wearing consistency according to claim 3, characterized in that: The preset discrete coefficient is 0.1-0.

2.

5. The method for testing earphone wearing consistency according to any one of claims 1 to 4, characterized in that: The frequency of the audio signal is 20 Hz-10 KHz.

6. The method for testing earphone wearing consistency according to any one of claims 1 to 4, characterized in that: Before obtaining the discrete coefficients corresponding to the plurality of frequency response curves, the method further includes: Determining whether the frequency response curve is normal; If the frequency response curve is abnormal, the test environment of the headphone to be tested is adjusted and the adjusted frequency response curve is re-acquired.

7. The method for testing earphone wearing consistency according to any one of claims 1 to 4, characterized in that: The obtaining, based on the plurality of frequency response curves, discrete coefficients corresponding to the plurality of frequency response curves comprises: Obtaining a sub-frequency response curve corresponding to a preset frequency band range in each of the frequency response curves; The dispersion coefficient is calculated based on a plurality of the sub-frequency response curves.

8. A testing device for analyzing earphone wearing consistency, characterized in that: Comprising modules for executing the method of any one of claims 1 to 7.

9. An electronic device, characterized in that: The invention comprises a memory and a processor, wherein the memory stores instructions executable by the processor, and the instructions are executed by the processor so that the processor can execute the method for testing the wearing consistency of headphones as claimed in any one of claims 1 to 7.

10. A computer storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for testing earphone wearing consistency according to any one of claims 1 to 7 is implemented.

Images