Sound leakage detection method and device, computer equipment, storage medium and program product

Abstract

The invention provides a sound leakage detection method and device, computer equipment, a storage medium and a program product, and is applied to the technical field of audio equipment. The method comprises the steps of determining a sound pressure level at an ear canal entrance of a first object under the condition that a wearable audio device plays an audio in a sound leakage test scene; the sound leakage test scene is a scene in which the test audio influences the first object when the second object uses the wearable audio equipment; determining a sound pressure level at the tympanic membrane of the first object based on the sound pressure level at the ear canal entrance; and determining a sound leakage value of the wearable audio equipment according to the sound pressure level at the tympanic membrane. According to the method, the technical effect of improving the reliability of sound leakage detection is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of audio equipment, and in particular to a sound leakage detection method, device, computer equipment, storage medium and program product. Background Art

[0002] With the development of acoustic technology, wearable audio devices have been widely used in people's daily lives; however, wearable audio devices may have the problem of sound leakage. The sound leakage of wearable audio devices is one of the important indicators to measure the product performance of wearable audio devices.

[0003] In the related art, when using a wearable audio device, the sound pressure level of the surrounding space can be measured to evaluate the sound leakage of the wearable audio device. However, the results obtained by this test method can only indirectly reflect the sound leakage of the wearable audio device and have low reliability. Summary of the invention

[0004] Based on this, it is necessary to provide a sound leakage detection method, device, computer equipment, storage medium and program product to address the above technical problems, which can improve the reliability of sound leakage detection.

[0005] In a first aspect, the present application provides a sound leakage detection method, comprising:

[0006] When a wearable audio device plays audio in a sound leakage test scenario, the sound pressure level at the entrance of the ear canal of the first subject is determined; the sound leakage test scenario is a scenario in which the test audio affects the first subject when the second subject uses the wearable audio device; based on the sound pressure level at the entrance of the ear canal, the sound pressure level at the eardrum of the first subject is determined; and the sound leakage value of the wearable audio device is determined based on the sound pressure level at the eardrum.

[0007] In some embodiments, the sound leakage test scenario is a simulation test scenario, the simulation test scenario including: a first artificial head model of a first object and a coupling model of a wearable audio device worn by a second object, the coupling model including a second artificial head model of the second object and a simulation device model of the wearable audio device; when the wearable audio device in the sound leakage test scenario plays audio, determining the sound pressure level at the entrance of the ear canal of the first object, including: when simulating the audio playback through the simulation device model, determining the spatial sound pressure level of the simulation test scenario through a finite element simulation method; selecting the sound pressure level at the entrance of the ear canal of the first object in the spatial sound pressure level.

[0008] In some embodiments, the first artificial head model includes an ear canal sub-model, the ear canal sub-model includes an ear canal entrance and an eardrum of the first object; based on the sound pressure level at the eardrum entrance, the sound pressure level at the eardrum of the first object is determined, including: when a sound wave corresponding to the audio propagates in the ear canal sub-model, based on the sound pressure level at the eardrum entrance, using a finite element simulation method to determine the sound pressure level at the eardrum of the first object.

[0009] In some embodiments, the method further includes: obtaining the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix according to the frequency of the audio; determining the sound pressure level at the tympanic membrane of the first object based on the sound pressure level at the entrance of the ear canal, including: determining the ear canal impedance based on the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix; determining the sound pressure level at the tympanic membrane of the first object based on the ear canal impedance, the auricle radiation impedance, the ear canal transfer matrix and the sound pressure level at the entrance of the ear canal.

[0010] In some embodiments, based on the sound pressure level at the entrance of the ear canal, determining the sound pressure level at the eardrum of the first object includes: converting the sound pressure level at the entrance of the ear canal into the sound pressure at the entrance of the ear canal; processing the sound pressure at the entrance of the ear canal by a frequency domain head transfer function corresponding to the ear canal to obtain the sound pressure at the eardrum of the first object; and determining the sound pressure level at the eardrum of the first object according to the sound pressure at the eardrum of the first object.

[0011] In some embodiments, the method also includes: determining multiple sound leakage test points based on the ear canal entrance of the second object; determining the sound pressure level at the ear canal entrance of the first object when the wearable audio device in the sound leakage test scenario plays audio, including: when the wearable audio device in the sound leakage test scenario plays audio, for each sound leakage test point, determining a candidate sound pressure level when the ear canal entrance of the first object is at the targeted leakage test point; determining the sound pressure level at the ear canal entrance of the first object based on the candidate sound pressure levels when the ear canal entrance of the first object is respectively at multiple sound leakage test points.

[0012] In a second aspect, the present application provides a sound leakage detection device, comprising:

[0013] A first sound pressure level determination module is used to determine the sound pressure level at the entrance of the ear canal of the first subject when the wearable audio device plays audio in a sound leakage test scenario; the sound leakage test scenario is a scenario in which the test audio affects the first subject when the second subject uses the wearable audio device;

[0014] a second sound pressure level determination module, configured to determine a sound pressure level at an eardrum of a first subject based on a sound pressure level at an entrance of an ear canal;

[0015] The sound leakage detection module is used to determine the sound leakage value of the wearable audio device based on the sound pressure level at the eardrum.

[0016] In a third aspect, the present application also provides a computer device, the computer comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer execution instructions; and the above method is implemented when the processor executes the computer execution instructions stored in the memory.

[0017] In a fourth aspect, the present application also provides a computer-readable storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are used to implement the above method when executed by a processor.

[0018] In a fifth aspect, the present application also provides a computer program product, including computer execution instructions, which implement the above method when executed by a processor.

[0019] The present application provides a sound leakage detection method, apparatus, computer equipment, storage medium and program product. When a second object uses a wearable audio device to play audio, the sound pressure level at the entrance of the ear canal of a first object is determined, and the sound pressure level at the eardrum of the first object is determined based on the sound pressure level at the entrance of the ear canal of the first object. The sound leakage value is determined based on the sound pressure level at the eardrum of the first object. Since the sound pressure level at the eardrum of the first object can represent the direct and actual impact of the audio played by the second object using the wearable audio device on the first object, that is, the direct and actual impact of the sound leakage of the wearable audio device on the first object, the sound pressure level at the eardrum of the first object can directly reflect the sound leakage of the wearable audio device, so that the sound leakage detection conforms to the actual usage scenario and improves the reliability of the sound leakage detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions 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.

[0021] Figure 1 A schematic diagram of an application scenario of a sound leakage detection method provided in an embodiment;

[0022] Figure 2 The process of a sound leakage detection method provided in an embodiment is as follows Figure 1 ;

[0023] Figure 3 A schematic diagram of multiple sound leakage test points determined in one embodiment;

[0024] Figure 4 Schematic diagram of the spatial sound pressure level in one embodiment Figure 1 ;

[0025] Figure 5 Schematic diagram of the spatial sound pressure level in one embodiment Figure 2 ;

[0026] Figure 6 A schematic diagram of a human ear in one embodiment Figure 1 ;

[0027] Figure 7 A schematic diagram of a human ear in one embodiment Figure 2 ;

[0028] Figure 8 is a schematic diagram of the relative positions of the first object and the second object in one embodiment;

[0029] Fig. 9 is a schematic diagram of frequency response curves at the ear canal entrance and the eardrum of a first object in one embodiment;

[0030] Fig.10 is a schematic diagram of frequency response curves at the eardrums of both ears of the first subject and the second subject in one embodiment;

[0031] Fig.11 is a schematic diagram of an equivalent circuit corresponding to an ear canal in one embodiment;

[0032] Fig.12 A schematic diagram of determining the sound pressure level at the eardrum of a first subject using a frequency domain head transfer function or a time domain head impulse response function in one embodiment;

[0033] Fig.13 Schematic diagram of a process in which a sound leakage detection method is used to guide the design of an acoustic cavity structure in an embodiment Figure 1 ;

[0034] Fig.14 Schematic diagram of a process in which a sound leakage detection method is used to guide the design of an acoustic cavity structure in an embodiment Figure 2 ;

[0035] Fig.15 A schematic diagram of the structure of a sound leakage detection device provided in an embodiment;

[0036] Fig.16 A hardware structure diagram of a computer device provided in one embodiment.

[0037] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0039] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0041] The sound leakage detection method provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown, the terminal 102 communicates with the server 104 through a network. The data storage system can store data that the server 104 needs to process. The data storage system can be integrated on the server 104, or placed on the cloud or other network servers.

[0042] The terminal 102 may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, IoT devices, and portable wearable devices. The IoT devices may be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, etc. The portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc. The server 104 may be implemented as an independent server or a server cluster consisting of multiple servers.

[0043] In some embodiments, Figure 2 As shown, a sound leakage detection method is provided, and the method is applied to a computer device as an example for explanation. The computer device may be Figure 1 The terminal or server in the present invention, the sound leakage detection method includes:

[0044] S201, determining a sound pressure level at an entrance of an ear canal of a first subject when a wearable audio device plays audio in a sound leakage test scenario; the sound leakage test scenario is a scenario in which the test audio affects the first subject when a second subject uses the wearable audio device.

[0045] Among them, wearable audio devices can be open wearable audio devices or closed wearable audio devices; open wearable audio devices refer to wearable audio devices that do not block the ear canal and do not completely cover the auricle, such as open headphones, smart audio glasses and virtual reality head-mounted display devices; closed wearable audio devices refer to wearable audio devices that block the ear canal or completely cover the auricle, such as earbud headphones and earmuff headphones.

[0046] The second object is an object wearing and using the wearable audio device to play audio, and the first object is an object that may be affected by sound leakage of the wearable audio device. In the sound leakage test scenario, the first object is near the second object, for example, the distance between the first object and the second object is less than a preset distance.

[0047] It should be noted that if the wearable audio device has a poor sound leakage prevention effect, the sound pressure level caused by the audio detected near the first object is large, and the audio played by the wearable audio device has a greater impact on the first object; if the wearable audio device has a good sound leakage prevention effect, the sound pressure level caused by the audio detected near the first object is small, and the audio played by the wearable audio device has a smaller impact on the first object.

[0048] Among them, the sound pressure level can reflect the strength of the sound, the larger the sound pressure level, the stronger the sound, and the smaller the sound pressure level, the weaker the sound; the sound pressure level at the entrance of the ear canal of the first object is the audio played by the wearable audio device. The sound pressure level generated at the entrance of the ear canal of the first object can reflect the strength of the audio played by the wearable audio device at the entrance of the ear canal of the first object; in actual applications, the sound pressure level at the entrance of the ear canal of the first object can be obtained by testing, for example, by testing the sound pressure level at the entrance of the ear canal of the first object with a sound pressure tester; for example, the sound pressure level at the entrance of the ear canal of the first object can be obtained by simulation testing.

[0049] In an optional manner, a sound leakage test scenario includes a first object, a second object, and a wearable audio device, the test space is a space in a real scene for testing sound leakage, and the wearable audio device is the only sound source in the test space; the second object wears the wearable audio device, the first object is near the second object, and when the second object uses the wearable audio device to play audio, the sound pressure level at the entrance of the ear canal of the first object is tested by a computer device sound pressure tester.

[0050] In an optional manner, a computer device constructs a simulation test scenario corresponding to the sound leakage test scenario, simulates the situation where the second object uses a wearable audio device to play audio through the simulation test scenario, and determines the sound pressure level at the entrance of the ear canal of the first object in the simulation test scenario.

[0051] S202: Determine the sound pressure level at the eardrum of the first subject based on the sound pressure level at the entrance of the ear canal.

[0052] Among them, the sound pressure level at the eardrum of the first object is the sound pressure level generated at the eardrum of the first object by the audio played by the wearable audio device; the sound pressure level at the eardrum of the first object can be calculated based on the sound pressure level at the entrance of the ear canal of the first object.

[0053] In an optional manner, the computer device may obtain a function of the sound wave corresponding to the audio propagating from the ear canal entrance to the eardrum, and based on the sound pressure level at the ear canal entrance of the first object, use the function to calculate the sound pressure level at the eardrum of the first object.

[0054] In an optional manner, the computer device may obtain a transmission matrix of sound waves propagating from the ear canal entrance to the eardrum, and based on the sound pressure level at the ear canal entrance of the first object, use the transmission matrix to calculate the sound pressure level at the eardrum of the first object.

[0055] In an optional manner, when the sound pressure level at the entrance of the ear canal of the first object is determined in a simulation test scenario, the simulation test scenario may further include an ear canal model. In the simulation test scenario, the sound waves corresponding to the simulated audio are propagated from the entrance of the ear canal to the eardrum, and the sound pressure level at the eardrum of the first object is calculated based on the sound pressure level at the entrance of the ear canal of the first object.

[0056] S203: Determine a sound leakage value of the wearable audio device according to the sound pressure level at the eardrum.

[0057] Among them, the sound leakage value of the wearable audio device can indicate the degree of sound leakage of the wearable audio device; the sound pressure level at the eardrum is positively correlated with the sound leakage value, that is, the greater the sound pressure level at the eardrum, the greater the sound leakage value of the wearable audio device, indicating that the sound leakage problem of the wearable audio device is more serious; the smaller the sound pressure level at the eardrum, the smaller the sound leakage value of the wearable audio device, indicating that the sound leakage problem of the wearable audio device is smaller.

[0058] From another perspective, the sound leakage value of the wearable audio device can also reflect the anti-sound leakage effect of the wearable audio device. The larger the sound leakage value of the wearable audio device, the worse the anti-sound leakage effect of the wearable audio device, and the smaller the sound leakage value of the wearable audio device, the better the anti-sound leakage effect of the wearable audio device. It can be understood that the sound leakage value of the wearable audio device can be used as a reference value for improving the anti-sound leakage effect of the wearable audio device.

[0059] Specifically, the computer device obtains a mapping relationship between a sound pressure level at the eardrum and a sound leakage value, and determines a sound leakage value of the wearable audio device based on the sound pressure level at the eardrum and the mapping relationship.

[0060] Exemplarily, when the sound pressure level at the eardrum belongs to the first interval, the sound leakage value is determined to be the first preset sound leakage value, when the sound pressure level at the eardrum belongs to the second interval, the sound leakage value is determined to be the second preset sound leakage value, and when the sound pressure level at the eardrum belongs to the third interval, the sound leakage value is determined to be the third preset sound leakage value; wherein, the sound pressure level belonging to the first interval is lower than the sound pressure level belonging to the second interval, the sound pressure level belonging to the second interval is lower than the sound pressure level belonging to the third interval, the first preset sound leakage value is lower than the second preset sound leakage value, and the second preset sound leakage value is lower than the third preset sound leakage value.

[0061] The above-mentioned sound leakage detection method determines the sound pressure level at the entrance of the ear canal of the first object when the second object uses a wearable audio device to play audio, determines the sound pressure level at the eardrum of the first object based on the sound pressure level at the entrance of the ear canal of the first object, and determines the sound leakage value based on the sound pressure level at the eardrum of the first object; since the sound pressure level at the eardrum of the first object can represent the direct and actual impact of the audio played by the second object using the wearable audio device on the first object, that is, the direct and actual impact of the sound leakage of the wearable audio device on the first object, the sound pressure level at the eardrum of the first object can directly reflect the sound leakage of the wearable audio device, so that the sound leakage detection conforms to the actual usage scenario, and the reliability of the sound leakage detection is improved.

[0062] In some embodiments, the method also includes: determining multiple sound leakage test points based on the ear canal entrance of the second object; determining the sound pressure level at the ear canal entrance of the first object when the wearable audio device in the sound leakage test scenario plays audio, including: when the wearable audio device in the sound leakage test scenario plays audio, for each sound leakage test point, determining a candidate sound pressure level when the ear canal entrance of the first object is at the targeted leakage test point; determining the sound pressure level at the ear canal entrance of the first object based on the candidate sound pressure levels when the ear canal entrance of the first object is respectively at multiple sound leakage test points.

[0063] The multiple sound leakage test points include multiple first test points and multiple second test points.

[0064] Specifically, with the entrance of the ear canal of the second object as the center and the first distance as the radius, a hemispherical surface facing the outside of the body is determined, and multiple first test points with the same height as the center are selected on the hemispherical surface, a second test point with a height higher than the center, and a second test point with a height lower than the center are selected on the hemispherical surface.

[0065] In an optional manner, a second test point with a height higher than the center and a second test point with a height lower than the center are selected on the hemispherical surface. This may be by selecting a reference test point from multiple first test points, selecting a second test point on the hemispherical surface with a height higher than the center and a second distance from the reference test point, and selecting a second test point on the hemispherical surface with a height lower than the center and a second distance from the reference test point.

[0066] It should be noted that the multiple sound leakage test points are the locations of the ear canal entrance of the first object during the sound leakage test; when performing the sound leakage test in a real test space, the position of the second object is fixed, that is, the position of the ear canal entrance of the second object is fixed, and with the ear canal entrance of the second object as the center and the first distance as the radius, multiple sound leakage test points are determined on the hemispherical surface facing the outside of the body; the position of the first object is set according to the multiple sound leakage test points, so that the ear canal entrance of the first object is respectively located at the multiple sound leakage test points.

[0067] When performing a sound leakage test in a simulated simulation test scenario, the position of the second artificial head model is fixed, that is, the position of the ear canal entrance of the second object is fixed, and the sound leakage test point is determined according to the position of the ear canal entrance of the second object. According to the sound leakage test point, the position of the first artificial head model is set so that the ear canal entrance of the first artificial head model is respectively located at multiple sound leakage test points.

[0068] For example, Figure 3 In a simulation test scenario, according to the ear canal entrance position of the second artificial head model, a three-dimensional schematic diagram, a front view, a top view and a side view of multiple sound leakage test points are determined; wherein, the ear canal entrance of the second artificial head model is point O, and the multiple first test points include: B1, B2, B3, B4 and B5; the multiple second test points include: A and C; B3 is the center of all sound leakage test points, so B3 is used as a reference test point, and it can be seen that the distances (second distances) between the second test points A and C and B3 are the same; the first distance and the second distance can be set according to actual needs, and the embodiments of the present application are not limited to this.

[0069] It should be noted that Figure 3 This is a schematic diagram for explaining multiple sound leakage test points. In actual applications, more sound leakage test points can be selected according to actual needs.

[0070] In an optional manner, a sound leakage test is performed in a real test space, the position of the second object is fixed, and after multiple sound leakage test points are determined based on the ear canal entrance of the second object, the position of the first object is determined for each sound leakage test point, so that the ear canal entrance of the first object is at the targeted sound leakage test point, the second object uses a wearable audio device to play audio, and a candidate sound pressure level when the ear canal entrance of the first object is at the targeted sound leakage test point is determined; the candidate sound pressure levels when the ear canal entrance of the first object is at multiple sound leakage test points are averaged to obtain the sound pressure level at the ear canal entrance of the first object.

[0071] In an optional manner, when performing a sound leakage test in a simulated test scenario, the position of the second artificial head model is fixed, and after multiple sound leakage test points are determined based on the ear canal entrance of the second artificial head model (the ear canal entrance of the second object), the position of the first artificial head model is determined for each sound leakage test point, so that the ear canal entrance of the first artificial head model (the ear canal entrance of the first object) is at the targeted sound leakage test point, and the audio is played by simulating the simulation device model to determine the candidate sound pressure level when the ear canal entrance of the first object is at the targeted sound leakage test point; the candidate sound pressure levels when the ear canal entrance of the first object is at multiple sound leakage test points are averaged to obtain the sound pressure level at the ear canal entrance of the first object.

[0072] In the above embodiment, the multiple sound leakage test points are points where the ear canal entrance of the first object may be located in the actual application scenario, so that the sound leakage test is close to the actual application scenario, thereby improving the reliability of the sound leakage test; the sound pressure level at the ear canal entrance of the first object is determined according to the multiple candidate sound pressure levels, thereby improving the accuracy of the sound pressure level at the ear canal entrance of the first object.

[0073] In some embodiments, the sound leakage test scenario is a simulation test scenario, the simulation test scenario including: a first artificial head model of a first object and a coupling model of a wearable audio device worn by a second object, the coupling model including a second artificial head model of the second object and a simulation device model of the wearable audio device; when the wearable audio device in the sound leakage test scenario plays audio, determining the sound pressure level at the entrance of the ear canal of the first object, including: when simulating the audio playback through the simulation device model, determining the spatial sound pressure level of the simulation test scenario through a finite element simulation method; selecting the sound pressure level at the entrance of the ear canal of the first object in the spatial sound pressure level.

[0074] Among them, the simulation test scene is obtained by simulating the actual sound leakage test scene; the simulation device model is obtained by simulating according to the actual parameters of the wearable audio device; the simulation test scene also includes an air domain, the first artificial head model and the coupling model are included in the air domain, and the air domain provides a propagation medium for the sound waves corresponding to the audio.

[0075] The coupling model is obtained by simulating the wearable audio device worn by the second subject. When the audio is played through the simulated device model, the propagation of sound waves in the ear of the second subject and in the space of the simulated test scene are consistent with the actual scene.

[0076] In the simulation test scenario, the first artificial head model is located near the second artificial head model to simulate the effect of the audio played by the second object on the nearby first object when the second object uses the wearable audio device in an actual scenario.

[0077] Among them, the finite element simulation method is a numerical method for solving approximate solutions to boundary value problems of partial differential equations. It can decompose a complex solution area (such as a simulation test scenario) into a finite number of simple sub-areas (i.e., finite elements), and then solve each sub-area, and obtain the solution of the overall area by combining the solutions of each sub-area; for example, in an embodiment of the present application, the finite element simulation method can be used to determine the propagation of sound waves in the simulation space, and the spatial sound pressure level can be calculated.

[0078] Specifically, the computer device can construct a simulation test scene through acoustic simulation software. In the simulation test scene, the audio playback is simulated by the simulation device model, the spatial sound pressure level is calculated by the finite element simulation method, and the sound pressure level at the entrance of the ear canal of the first object is determined in the spatial sound pressure level.

[0079] Among them, the spatial sound pressure level includes the sound pressure level of each spatial position point in the simulation space corresponding to the simulation test scene; since the ear canal entrance of the first object is in the simulation space and can be described by the spatial position point, the spatial position point of the ear canal entrance is obtained, and the sound pressure level of the control position point is obtained in the spatial sound pressure level, that is, the sound pressure level of the ear canal entrance of the first object.

[0080] It should be noted that when the frequency of the audio played is different, the spatial sound pressure level will also be different, and the sound pressure level at the entrance of the ear canal of the first object will also be different; when the relative position between the first artificial head model and the second artificial head model is different, due to the different reflection and refraction of the sound waves in the simulated space, the spatial sound pressure level will also be different, and the sound pressure level at the entrance of the ear canal of the first object will also be different.

[0081] For example, when the frequency of the played audio is 100 Hz, the spatial sound pressure level is as follows: Figure 4 As shown in Figure 1, when the frequency of the audio played is 1000Hz, the spatial sound pressure level is Figure 5 As shown; Figure 4 and Figure 5 is a top view of a simulated test scene, wherein an external listener is a top view of a first object, and a user is a second object; Figure 4 and Figure 5The ear canal entrance of the first subject in is at the reference test point, i.e. Figure 3 Point B3 shown in the figure; it should be noted that when the sound leakage test point at the ear canal entrance of the first object is different, the reflection and refraction of the sound wave in the simulation space are also different, and therefore the obtained spatial sound pressure level is also different.

[0082] In the above embodiment, the spatial sound pressure level can be determined quickly and accurately through the finite element simulation method, and the sound pressure level at the entrance of the ear canal of the first object is selected from the spatial sound pressure level, which can improve the efficiency and accuracy of determining the sound pressure level at the entrance of the ear canal of the first object.

[0083] In some embodiments, the first artificial head model includes an ear canal sub-model; the ear canal sub-model includes an ear canal entrance and an eardrum of the first object; based on the sound pressure level at the eardrum entrance, the sound pressure level at the eardrum of the first object is determined, including: when a sound wave corresponding to the audio propagates in the ear canal sub-model, based on the sound pressure level at the eardrum entrance, using a finite element simulation method to determine the sound pressure level at the eardrum of the first object.

[0084] Among them, the ear canal sub-model is obtained by simulating and modeling the ear canal structure of the human body; the standard ear canal structure can be simulated and modeled to obtain the ear canal sub-model; the ear canal sub-model of the first object is coupled with the first artificial head model to obtain the first artificial head model including the ear canal sub-model, and the ear canal sub-model of the first object can be used to simulate the propagation of sound waves in the ear environment of the first object.

[0085] It can be understood that the second artificial head model also includes an ear canal sub-model corresponding to the second subject, so as to simulate the propagation of sound waves corresponding to the audio in the ear environment of the second subject.

[0086] For example, Figure 6 and Figure 7 As shown, the human ear includes the auricle, the entrance of the ear canal, the ear canal and the eardrum. Due to the existence of the eardrum, the ear canal can be regarded as a semi-closed environment. Sound waves propagate to the eardrum, causing the eardrum to vibrate, and the sound waves are propagated to the bone chain, so that the human body can hear the sound.

[0087] Specifically, in a simulation test scenario, the ear canal sub-model of the first object is used to simulate the process of sound waves propagating from the ear canal entrance of the first object to the eardrum. When the sound pressure level at the ear canal entrance is known, the finite element simulation method is used to calculate the sound pressure level at the eardrum of the first object.

[0088] Exemplarily, the relative positions of the first object and the second object in the simulation space are as follows: Figure 8As shown, the ear canal entrance of the left ear of the first object (external listener) is at the sound leakage test point B3, the right ear of the second object (user) wears the wearable audio device, and the sound pressure level at the eardrum of the first object (external listener) can be the sound pressure level at the eardrum of the left ear of the first object; when the wearable audio device plays audio of different frequencies, the sound pressure level at the eardrum of the first object at different frequencies can be obtained, and the corresponding frequency response curve at the eardrum of the first object can be determined according to the sound pressure level at the eardrum of the first object and the corresponding frequency.

[0089] Fig. 9 The figure shows the frequency response curve (Lisetner_left ear) corresponding to the eardrum of the left ear and the frequency response curve (B3) corresponding to the ear canal entrance of the left ear of the first object (external listener) when the ear canal entrance of the left ear is at the sound leakage test point B3; it can be seen that the sound pressure level at the ear canal entrance of the first object is different from the sound pressure level at the eardrum, that is, the sound pressure level at the ear canal entrance cannot reflect the actual impact of the audio on the first object.

[0090] Similarly, by adopting the finite element simulation method, the sound pressure level at the eardrum of the right ear of the first object (external listener) can be determined, and then the corresponding frequency response curve at the eardrum of the right ear of the first object (external listener) can be determined; the sound pressure level at the eardrum of both ears of the second object (user) can also be determined, and then the corresponding frequency response curve at the eardrum of both ears of the second object (user) can be determined.

[0091] Fig.10 The frequency response curve corresponding to the tympanic membrane of the left ear of the first object (external listener) (Lisetner_left ear), the frequency response curve corresponding to the tympanic membrane of the right ear of the first object (external listener) (Lisetner_right ear), the frequency response curve corresponding to the tympanic membrane of the left ear of the second object (user) (User_left ear), and the frequency response curve corresponding to the tympanic membrane of the right ear of the second object (user) (User_right ear) are shown; it can be seen that when there is a sound leakage problem in the wearable audio device, the sound waves will propagate to the tympanic membranes of both ears of the first object, so the sound leakage value of the wearable audio device can be determined by the sound pressure level at the tympanic membrane of the left ear or the right ear of the first object; in this embodiment of the present application, the ear canal entrance of the first object can be the ear canal entrance of one ear close to the wearable audio device, and then the tympanic membrane of the first object is the tympanic membrane of one ear close to the wearable audio device.

[0092] In the above embodiment, the propagation of sound waves in the ear canal of the first object is simulated by using the ear canal sub-model, and the sound pressure level at the eardrum of the first object is calculated by using the finite element simulation method. Through the simulation test, the efficiency and accuracy of determining the sound pressure level at the eardrum of the first object are improved.

[0093] In some embodiments, the method further includes: obtaining the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix according to the frequency of the audio; determining the sound pressure level at the tympanic membrane of the first object based on the sound pressure level at the entrance of the ear canal, including: determining the ear canal impedance based on the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix; determining the sound pressure level at the tympanic membrane of the first object based on the ear canal impedance, the auricle radiation impedance, the ear canal transfer matrix and the sound pressure level at the entrance of the ear canal.

[0094] It should be noted that, in this embodiment, the sound pressure level at the eardrum is determined by an equivalent circuit corresponding to the ear canal based on the sound pressure level at the entrance of the ear canal; the equivalent circuit corresponding to the ear canal is as follows: Fig.11 As shown, is the ear canal impedance, is the impedance of the tympanic membrane, is the radiation impedance of the pinna, is the sound pressure level at the entrance of the ear canal.

[0095] The ear canal is regarded as a circuit system with two ports (two-port system) with input and output, where the input port receives sound waves and the output port outputs the sound waves transmitted through the two-port system. In the equivalent circuit corresponding to the ear canal, the input port corresponds to the entrance of the ear canal and the output port corresponds to the eardrum.

[0096] The ear canal transfer matrix is ​​the transfer matrix of a two-port system, which is used to describe the transmission characteristics from the input end to the output end when the sound wave propagates in the ear canal.

[0097] Among them, the auricle radiation impedance is the resistance encountered by sound waves propagating at the auricle, and the tympanic membrane impedance reflects the response characteristics of the tympanic membrane to sound waves.

[0098] The auricle radiation impedance is related to the frequency of the audio. In practical applications, the corresponding auricle radiation impedance can be obtained according to the frequency of the audio. The tympanic membrane impedance can be determined based on the tympanic cavity impedance and the auditory ossicle impedance. Both the tympanic cavity impedance and the auditory ossicle impedance are related to the frequency of the audio. In practical applications, the corresponding tympanic cavity impedance and auditory ossicle impedance are obtained according to the frequency of the audio, and the tympanic membrane impedance corresponding to the frequency is calculated based on the tympanic cavity impedance and the auditory ossicle impedance corresponding to the frequency.

[0099] The ear canal transfer matrix is ​​related to the frequency of the audio. In practical applications, the corresponding sound attenuation coefficient is obtained according to the frequency of the audio, and the ear canal transfer matrix corresponding to the frequency is calculated according to the sound attenuation coefficient and the Prandtl number corresponding to the frequency.

[0100] Specifically, the computer device calculates the ear canal impedance according to the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix, as shown in formula (1).

[0101] (1) in, is the ear canal impedance, is the radiation impedance of the pinna, is the impedance of the tympanic membrane, , , and is the transfer parameter in the ear canal transfer matrix; the ear canal transfer matrix is .

[0102] The computer device calculates the sound pressure at the entrance of the ear canal according to the sound pressure level at the entrance of the ear canal. Exemplarily, the sound pressure at the entrance of the ear canal may be determined using formula (2).

[0103] (2) in, is the sound pressure at the entrance of the ear canal, is the sound pressure level at the entrance of the ear canal, is the reference sound pressure; it should be noted that the sound pressure level at the entrance of the ear canal of the first object can be obtained by testing during a sound leakage test in a real test space, or can be the sound pressure level at the entrance of the ear canal of the first object determined in a simulated test scenario.

[0104] The computer device determines the sound pressure at the eardrum of the first object according to the ear canal impedance, the auricle radiation impedance, the ear canal transfer matrix and the sound pressure at the ear canal entrance, as shown in formula (3).

[0105] (3)

[0106] in, is the sound pressure at the eardrum of the first subject, is the sound pressure at the entrance of the ear canal of the first subject, is the ear canal impedance, is the radiation impedance of the pinna, is the impedance of the tympanic membrane, , , and is the transfer parameter in the ear canal transfer matrix.

[0107] After the sound pressure at the eardrum of the first object is determined, the sound pressure level at the eardrum of the first object is calculated according to the sound pressure at the eardrum of the first object.

[0108] In the above embodiment, based on the measured sound pressure level at the entrance of the ear canal of the first object, the sound pressure level at the eardrum of the first object is calculated using the equivalent circuit of the ear canal. The sound pressure level at the eardrum of the first object can directly reflect the sound leakage of the wearable audio device, so that the sound leakage detection conforms to the actual usage scenario and improves the reliability of the sound leakage detection.

[0109] In some embodiments, based on the sound pressure level at the ear canal entrance, determining the sound pressure level at the eardrum of the first object includes: converting the sound pressure level at the ear canal entrance into the sound pressure at the ear canal entrance, processing the sound pressure at the ear canal entrance by a frequency domain head transfer function corresponding to the ear canal to obtain the sound pressure at the eardrum of the first object, and determining the sound pressure level at the eardrum of the first object according to the sound pressure at the eardrum of the first object.

[0110] Among them, the frequency-domain head transfer function (HRTF) is used to simulate the process of sound waves propagating from the sound source to the two ears; the frequency-domain head transfer function corresponding to the ear canal is used to simulate the process of sound waves propagating from the entrance of the ear canal to the eardrum. In this process, the internal structure of the ear canal diffracts, reflects and filters the sound waves.

[0111] The sound pressure level at the entrance of the ear canal may be obtained by testing a sound leakage test in a real test space, or may be the sound pressure level at the entrance of the ear canal of the first object determined in a simulation test scenario.

[0112] Specifically, the computer device can convert the sound pressure level at the entrance of the ear canal into the sound pressure at the entrance of the ear canal by using the reference sound pressure, and the sound pressure at the entrance of the ear canal can be determined by formula (2).

[0113] The computer device obtains a frequency domain head transfer function corresponding to the ear canal, and uses the frequency domain head transfer function to process the sound pressure at the entrance of the ear canal of the first object to obtain the sound pressure at the eardrum of the first object, as shown in formula (4).

[0114] (4)

[0115] in, is the sound pressure at the eardrum of the first subject, is the sound pressure at the entrance of the ear canal of the first subject, is the frequency domain head transfer function. It should be noted that The sound pressure at the eardrum of the first object is represented in the frequency domain, The sound pressure at the entrance of the ear canal of the first subject is represented in the frequency domain and may also be referred to as the frequency-domain sound pressure at the entrance of the ear canal of the first subject.

[0116] After the sound pressure at the eardrum of the first object is obtained, the sound pressure level at the eardrum of the first object can be obtained by performing an inverse operation of formula (2) according to the reference sound pressure.

[0117] In an optional manner, a time-domain head impulse response function can be used to process the sound pressure at the entrance of the ear canal of the first object to obtain the time-domain sound pressure at the eardrum of the first object, and the frequency-domain sound pressure at the eardrum of the first object is calculated based on the time-domain sound pressure at the eardrum of the first object. Based on the frequency-domain sound pressure at the eardrum of the first object, the sound pressure level at the eardrum of the first object is determined.

[0118] The time-domain head impulse response function (Head-Related Impulse Response, HRIR) is the time-domain representation of HRTF.

[0119] Specifically, after obtaining the sound pressure at the entrance of the ear canal, the sound pressure at the entrance of the ear canal is inversely Fourier transformed to obtain the time domain sound pressure at the entrance of the ear canal , the time-domain sound pressure at the entrance of the ear canal is convolved with the time-domain head impulse response function to obtain the time-domain sound pressure at the eardrum of the first object, as shown in formula (5).

[0120] (5)

[0121] in, is the time-domain sound pressure at the eardrum of the first subject, is the time-domain sound pressure at the ear canal entrance of the first subject, is the time domain head impulse response function.

[0122] By performing Fourier transformation on the time domain sound pressure at the eardrum of the first object, the frequency domain sound pressure at the eardrum can be obtained. The sound pressure level at the eardrum of the first object can be obtained by performing inverse calculation of formula (2) according to the reference sound pressure.

[0123] For example, Fig.12 As shown, the sound pressure level at the eardrum of the first object can be determined by using a frequency domain head transfer function or a time domain head impulse response function corresponding to the sound pressure level at the ear canal entrance of the first object.

[0124] In the above embodiment, based on the measured sound pressure level at the entrance of the ear canal of the first object, the sound pressure level at the eardrum of the first object can be determined by the frequency domain head transfer function corresponding to the ear canal. Since the sound pressure level at the eardrum of the first object can directly reflect the sound leakage of the wearable audio device, the sound leakage detection is in line with the actual usage scenario, thereby improving the reliability of the sound leakage detection.

[0125] In some embodiments, an application scenario of a sound leakage detection method is provided, and the sound leakage detection method can be used to guide the design of an acoustic cavity structure; illustratively, when a finite element simulation method is used to determine the sound pressure level at the eardrum of a first object, the process of using the sound leakage detection method to guide the design of an acoustic cavity structure is as follows: Fig.13 shown.

[0126] For the current acoustic cavity structure, when a wearable audio device adopts the acoustic cavity structure, a simulation test scenario is constructed; the simulation test scenario includes a first artificial head model of a first object, and a coupling model of a wearable audio device corresponding to the acoustic cavity structure worn by a second object, the coupling model including a second artificial head model of the second object and a simulation device model of the wearable audio device corresponding to the acoustic cavity structure; audio playback is simulated by the simulation device model corresponding to the acoustic cavity structure, the sound pressure level at the eardrum of the first object is calculated by a finite element simulation method, and a sound leakage value of the wearable audio device corresponding to the acoustic cavity structure is determined according to the sound pressure level at the eardrum of the first object, and it is judged whether the sound leakage value belongs to a preset interval. If the sound leakage value does not belong to the preset interval, it indicates that the sound leakage prevention effect of the acoustic cavity structure is poor, and the acoustic cavity structure is continued to be adjusted. If the sound leakage value belongs to the preset interval, it indicates that the sound leakage prevention effect of the acoustic cavity structure is good, and the current acoustic cavity structure can be used as the final acoustic cavity structure.

[0127] Exemplarily, in the case where the sound pressure level at the eardrum of the first object is determined by using an equivalent circuit or a frequency domain head transfer function, the process of using the sound leakage detection method to guide the design of the acoustic cavity structure is as follows: Fig.14 shown.

[0128] For the current acoustic cavity structure, when a wearable audio device adopts the acoustic cavity structure, a simulation test scenario is constructed; the simulation test scenario includes a first artificial head model of a first object, and a coupling model of a wearable audio device corresponding to the acoustic cavity structure worn by a second object, the coupling model including a second artificial head model of the second object and a simulation device model of the wearable audio device corresponding to the acoustic cavity structure; audio playback is simulated by the simulation device model corresponding to the acoustic cavity structure to determine the sound pressure level at the entrance of the ear canal of the first object.

[0129] Acquire the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix, determine the ear canal impedance based on the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix; determine the sound pressure level at the eardrum of the first object based on the ear canal impedance, the auricle radiation impedance, the ear canal transfer matrix and the sound pressure level at the ear canal entrance; or,

[0130] converting the sound pressure level at the entrance of the ear canal into the sound pressure at the entrance of the ear canal, processing the sound pressure at the entrance of the ear canal by using a frequency domain head transfer function corresponding to the ear canal to obtain the sound pressure at the eardrum of the first object, and determining the sound pressure level at the eardrum of the first object according to the sound pressure at the eardrum of the first object;

[0131] According to the sound pressure level at the eardrum of the first object, the sound leakage value of the wearable audio device corresponding to the acoustic cavity structure is determined. If the sound leakage value exceeds the preset interval, it means that the anti-sound leakage effect of the acoustic cavity structure is poor, and the acoustic cavity structure continues to be adjusted. If the sound leakage value belongs to the preset interval, it means that the anti-sound leakage effect of the acoustic cavity structure is good, and the current acoustic cavity structure can be used as the final acoustic cavity structure.

[0132] The above-mentioned sound leakage detection method determines the sound pressure level at the entrance of the ear canal of the first object when the second object uses a wearable audio device to play audio, determines the sound pressure level at the eardrum of the first object based on the sound pressure level at the entrance of the ear canal of the first object, and determines the sound leakage value based on the sound pressure level at the eardrum of the first object; since the sound pressure level at the eardrum of the first object can represent the direct and actual impact of the audio played by the second object using the wearable audio device on the first object, that is, the direct and actual impact of the sound leakage of the wearable audio device on the first object, the sound pressure level at the eardrum of the first object can directly reflect the sound leakage of the wearable audio device, so that the sound leakage detection conforms to the actual usage scenario, and the reliability of the sound leakage detection is improved.

[0133] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0134] Based on the same inventive concept, Fig.15 The schematic diagram of the structure of the sound leakage detection device provided in this application is as follows: Fig.15 As shown, the sound leakage detection device provided in this embodiment includes:

[0135] A first sound pressure level determination module 1501 is used to determine the sound pressure level at the entrance of the ear canal of the first subject when the wearable audio device plays audio in a sound leakage test scenario; the sound leakage test scenario is a scenario in which the test audio affects the first subject when the second subject uses the wearable audio device;

[0136] A second sound pressure level determination module 1502, configured to determine a sound pressure level at an eardrum of a first subject based on a sound pressure level at an entrance of an ear canal;

[0137] The sound leakage detection module 1503 is used to determine the sound leakage value of the wearable audio device according to the sound pressure level at the eardrum.

[0138] In some embodiments, the sound leakage test scenario is a simulation test scenario, the simulation test scenario comprising: a first artificial head model of a first subject and a coupling model of a wearable audio device worn by a second subject, the coupling model comprising a second artificial head model of the second subject and a simulation device model of the wearable audio device;

[0139] The first sound pressure level determination module 1501 is further used to determine the spatial sound pressure level of the simulated test scene by a finite element simulation method when simulating the audio playback through the simulation device model; and select the sound pressure level at the entrance of the ear canal of the first object in the spatial sound pressure level.

[0140] In some embodiments, the first artificial head model includes an ear canal sub-model; the ear canal sub-model includes an ear canal entrance and an eardrum of the first subject;

[0141] The second sound pressure level determination module 1502 is further used to determine the sound pressure level at the eardrum of the first object by using a finite element simulation method based on the sound pressure level at the ear canal entrance when the sound wave corresponding to the audio propagates in the ear canal sub-model.

[0142] In some embodiments, the second sound pressure level determination module 1502 is further used to obtain the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix according to the frequency of the audio; determine the ear canal impedance based on the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix; determine the sound pressure level at the eardrum of the first object based on the ear canal impedance, the auricle radiation impedance, the ear canal transfer matrix and the sound pressure level at the ear canal entrance.

[0143] In some embodiments, the second sound pressure level determination module 1502 is further used to convert the sound pressure level at the entrance of the ear canal into the sound pressure at the entrance of the ear canal; process the sound pressure at the entrance of the ear canal by using the frequency domain head transfer function corresponding to the ear canal to obtain the sound pressure at the eardrum of the first object; and determine the sound pressure level at the eardrum of the first object according to the sound pressure at the eardrum of the first object.

[0144] In some embodiments, the sound leakage detection device further includes: a sound leakage test point determination module, configured to determine a plurality of sound leakage test points according to the ear canal entrance of the second subject;

[0145] The first sound pressure level determination module 1501 is further used to determine, for each sound leakage test point, a candidate sound pressure level when the ear canal entrance of the first object is at the targeted sound leakage test point when the wearable audio device in the sound leakage test scenario plays audio; and determine the sound pressure level at the ear canal entrance of the first object based on the candidate sound pressure levels when the ear canal entrance of the first object is at multiple sound leakage test points respectively.

[0146] The sound leakage detection device provided in this embodiment can execute the method provided in the above method embodiment, and its implementation principle and technical effect are similar. Therefore, the specific limitations in the above-mentioned sound leakage detection device embodiment can refer to the limitations on the sound leakage detection method above, and will not be repeated here.

[0147] Each module in the above-mentioned sound leakage detection device can be implemented in whole or in part by software, hardware or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0148] Fig.16 This is a schematic diagram of the structure of the computer device provided in this application. Fig.16 As shown, the computer device 160 provided in this embodiment includes: at least one processor 1601 and a memory 1602. Optionally, the device 160 also includes a communication component 1603. The processor 1601, the memory 1602 and the communication component 1603 are connected via a bus 1604.

[0149] In a specific implementation process, at least one processor 1601 executes the computer-executable instructions stored in the memory 1602, so that at least one processor 1601 executes the above method.

[0150] The specific implementation process of the processor 1601 can be found in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0151] In the above embodiments, it should be understood that the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the invention can be directly implemented as a hardware processor, or can be implemented by a combination of hardware and software modules in the processor.

[0152] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk storage.

[0153] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

[0154] The embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, each step of the method in the above embodiment is implemented.

[0155] The embodiment of the present application also provides a computer program product, including computer executable instructions, which implement the various steps of the method in the above embodiment when executed by a processor.

[0156] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0157] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0158] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0159] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0160] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0161] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0162] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. 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, etc. Various media that can store program codes.

[0163] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0164] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A sound leakage detection method, characterized in that: include: Determine the sound pressure level at the entrance of the ear canal of the first subject when the wearable audio device plays audio in a sound leakage test scenario; the sound leakage test scenario is a scenario in which the second subject uses the wearable audio device to test the effect of the audio on the first subject; determining a sound pressure level at an eardrum of the first subject based on the sound pressure level at the ear canal entrance; A sound leakage value of the wearable audio device is determined according to the sound pressure level at the eardrum.

2. The method according to claim 1, characterized in that The sound leakage test scenario is a simulation test scenario, and the simulation test scenario includes: a first artificial head model of the first subject and a coupling model of the second subject wearing the wearable audio device, and the coupling model includes a second artificial head model of the second subject and a simulation device model of the wearable audio device; The step of determining the sound pressure level at the entrance of the ear canal of the first subject when the wearable audio device plays audio in the sound leakage test scenario includes: In the case of simulating the playing of audio by the simulation device model, determining the spatial sound pressure level of the simulation test scene by a finite element simulation method; The sound pressure level at the entrance of the ear canal of the first object is selected from the spatial sound pressure levels.

3. The method according to claim 2, characterized in that The first artificial head model includes an ear canal sub-model, and the ear canal sub-model includes an ear canal entrance and an eardrum of the first subject; The determining the sound pressure level at the eardrum of the first object based on the sound pressure level at the ear canal entrance includes: When the sound wave corresponding to the audio propagates in the ear canal sub-model, the sound pressure level at the eardrum of the first object is determined by the finite element simulation method based on the sound pressure level at the ear canal entrance.

4. The method according to claim 1, characterized in that The method further comprises: According to the frequency of the audio, obtaining the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix; The determining the sound pressure level at the eardrum of the first object based on the sound pressure level at the ear canal entrance includes: Determining ear canal impedance based on the auricle radiation impedance, the tympanic membrane impedance and the ear canal transfer matrix; A sound pressure level at an eardrum of the first subject is determined based on the ear canal impedance, the pinna radiation impedance, the ear canal transfer matrix, and the sound pressure level at the ear canal entrance.

5. The method according to claim 1, characterized in that The determining the sound pressure level at the eardrum of the first object based on the sound pressure level at the ear canal entrance includes: converting the sound pressure level at the entrance of the ear canal into the sound pressure at the entrance of the ear canal; Processing the sound pressure at the entrance of the ear canal by using a frequency domain head transfer function corresponding to the ear canal to obtain the sound pressure at the eardrum of the first object; A sound pressure level at an eardrum of the first subject is determined based on the sound pressure at the eardrum of the first subject.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: Determining a plurality of sound leakage test points according to the ear canal entrance of the second subject; The step of determining the sound pressure level at the entrance of the ear canal of the first subject when the wearable audio device plays audio in the sound leakage test scenario includes: When the wearable audio device in the sound leakage test scenario plays audio, determining, for each sound leakage test point, a candidate sound pressure level when the ear canal entrance of the first subject is at the targeted sound leakage test point; The sound pressure level at the ear canal entrance of the first object is determined according to the candidate sound pressure levels when the ear canal entrance of the first object is respectively at the multiple sound leakage test points.

7. A sound leakage detection device, characterized in that: The device comprises: A first sound pressure level determination module is used to determine the sound pressure level at the entrance of the ear canal of the first subject when the wearable audio device plays audio in a sound leakage test scenario; the sound leakage test scenario is a scenario in which the second subject uses the wearable audio device to test the effect of the audio on the first subject; a second sound pressure level determination module, configured to determine a sound pressure level at an eardrum of the first subject based on the sound pressure level at an entrance of the ear canal; A sound leakage detection module is used to determine the sound leakage value of the wearable audio device according to the sound pressure level at the eardrum.

8. A computer device, characterized in that: include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 6 when executed by a processor.

10. A computer program product, characterized in that The method comprises computer-executable instructions, which implement the method according to any one of claims 1 to 6 when executed by a processor.

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