Open earphone, method and storage medium
By setting up sound outlets and speakers in open headphones, the technology of superimposing and cancelling of reflected signals and external leakage signals is used to solve the sound leakage problem, improving the privacy and user experience of the headphones.
Patent Information
- Application Number
- CN202411208159.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2024-12-13
AI Technical Summary
Open headphones are prone to sound leakage during use, which leads to user privacy leakage and affects others' auditory experience, especially in quiet environments, which may cause unnecessary attention or resentment.
An open headphone is designed, by providing first and second sound output holes in the sound output part and emitting an audio signal using a first speaker. The first signal is reflected along the surface of the ear cavity to form a reflective signal, and the second signal and the reflection are The signal is partially superimposed and cancelled in a specific direction, thereby reducing the leakage of sound. The headset also includes a microprocessor component to adjust the phase difference between the audio signal and the reflected signal, ensuring that different wearers can obtain a consistent sound leakage-proof effect.
It effectively reduces the sound leakage of headphones, prevents user privacy and affects others, and improves the privacy and auditory experience of use, especially in a quiet environment.
Smart Images
Figure CN119136103A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure generally relates to the field of audio equipment technology. More specifically, the present disclosure relates to an open-type headset, method and storage medium. Background Art
[0002] With the popularity of personal audio devices, headphones have become an indispensable part of people's daily lives. TWS headphones (True Wireless Stereo) were common in the past. However, during wearing, TWS headphones may directly contact the ear canal. Long-term wearing may cause ear discomfort or fatigue, accompanied by a sense of oppression and unnaturalness in the sound. In addition, since TWS headphones may partially or completely isolate external sounds, users may not be able to perceive changes in the surrounding environment in time when wearing them, such as the sound of vehicles driving, pedestrians talking, etc. This reduces the safety of users to a certain extent, especially when users are exercising outdoors or crossing the road.
[0003] In contrast, OWS headphones (Open Wearable Stereo) adopt a fully open design and are not worn in the ears. They send sound into the ears through directional unit technology. This design prevents the headphones from exerting pressure on the ear canal when worn, making them more comfortable. Due to the non-in-ear design, OWS headphones are less likely to cause ear discomfort when worn for a long time, and are particularly suitable for patients with oily ears or otitis media. At the same time, this design also prevents the earplugs from contacting earwax, dust, etc., reducing the risk of ear infections. In addition, OWS headphones do not isolate external sounds, and users can sense changes in the surrounding environment at any time when wearing them, which improves safety. This is especially important for outdoor sports, commuting, and other scenarios.
[0004] However, OWS headphones may be accompanied by sound leakage during use, that is, sound leaks from the inside of the headphones to the external environment, which may cause users to feel that their privacy is leaked or affect others when using them. In a quieter environment, such as a library or office, the sound leakage of the headphones may disturb people around them, causing unnecessary attention or disgust. Therefore, this problem not only affects the user's listening experience, but may also infringe on the hearing space of others and even lead to the leakage of private information.
[0005] In view of this, there is an urgent need to provide an open-type headset, method and storage medium solution, so as to effectively reduce the leakage of sound while maintaining wearing comfort, thereby reducing the impact on others and enhancing the privacy of users using the headset. Summary of the invention
[0006] In order to at least solve one or more of the technical problems mentioned above, the present disclosure proposes a solution for open-type headphones in multiple aspects.
[0007] In a first aspect, the present disclosure provides an open-type earphone, the earphone comprising: a sound outlet, comprising a first surface, and a side wall arranged around the first surface, a first speaker arranged in a cavity formed by the side wall and the first surface; a first sound outlet hole is arranged on the first surface; a second sound outlet hole is arranged on the side wall adjacent to the first sound outlet hole and a first gap is formed between the sound outlet and the concha cavity of the human ear; wherein, in a worn state, the first surface faces the ear canal direction of the human ear; in a working state of the first speaker, the first speaker emits audio, and emits a first sound signal along the first sound outlet hole, and emits a second sound signal along the second sound outlet hole; the first sound signal is reflected along the surface of the concha cavity, and emitted in the first gap along the sound outlet adjacent to the second sound outlet hole, forming a first reflected signal; the first reflected signal and the second sound signal at least partially overlap and cancel each other in a first direction, wherein the first direction is the propagation direction of the second sound signal.
[0008] In some embodiments, the first sound outlet hole is arranged in a first arc shape along the edge of the first surface; the second sound outlet hole is arranged in a second arc shape along the surrounding direction of the side wall, and the first arc shape is arranged concentrically with the second arc shape.
[0009] In some embodiments, an area ratio of the first sound outlet hole to the second sound outlet hole is 1:1 to 3:1.
[0010] In some embodiments, the second sound outlet hole is designed to be an elongated strip along an arc, and a ratio of length to width is 10:3 to 10:1.
[0011] In some embodiments, when in the worn state, the sound output portion of the first surface 111 at least partially extends into the concha cavity, and the first gap is the minimum cross-sectional area between the edge of the first surface 111 adjacent to the first sound output hole and the concha cavity, wherein the ratio of the first gap to the area of the second sound output hole 1122 is 4:5 to 6:5.
[0012] In some embodiments, when in the wearing state, a Helmholtz resonance cavity is formed between the earphone and the concha cavity 210, the first sound outlet hole 1111 is arranged in the direction away from the apex of the auricle 220, and the second sound outlet hole 1122 is arranged in the direction close to the apex of the auricle.
[0013] In some embodiments, a movable adjustment portion 1122 - 1 is provided inside the second sound outlet 1122 for adjusting the area of the second sound outlet 1122 .
[0014] In some embodiments, a plurality of first speakers are further included, wherein the plurality of first speakers emit sound synchronously.
[0015] In some embodiments, the earphone also includes: a first speaker, the first speaker includes a diaphragm, and is disposed inside the earphone, wherein the first sound outlet hole and the second sound outlet hole are respectively located on both sides of the diaphragm; the earphone also includes an audio collection component for collecting the first reflected signal; and a microprocessor component, which is disposed inside the earphone and is used to divide the audio into a first sound signal and a second sound signal and to delay the first sound signal and / or the second sound signal.
[0016] In some embodiments, the first speaker includes a diaphragm disposed inside the earphone, wherein the first sound outlet hole and the second sound outlet hole are respectively located on both sides of the diaphragm, and the first sound outlet hole and the second sound outlet hole are equidistant from the diaphragm.
[0017] In a second aspect, an earphone includes a sound outlet portion, wherein the sound outlet portion includes a first surface, and a side wall arranged around the first surface, a first speaker is arranged in a cavity formed by the side wall and the first surface; a first sound outlet hole is arranged on the first surface; a second sound outlet hole is arranged on the side wall adjacent to the first sound outlet hole, and the method includes: in a working state, the first speaker plays audio, the audio emits a first sound signal along the first sound outlet hole, and emits a second sound signal along the second sound outlet hole; obtains the first reflected signal, wherein the first reflected signal is formed by the first sound signal being reflected along the surface of the human ear and emitted along the first gap between the earphone and the human ear; wherein the first reflected signal and the second sound signal at least partially overlap and cancel each other in a first direction, wherein the first direction is the propagation direction of the second sound signal.
[0018] In some embodiments, the method further includes: determining the distance from the first sound outlet to the ear canal concha cavity based on the first reflected signal; adjusting the acoustic parameters of the first sound signal and / or the second sound signal so that the phase difference between the first sound signal and the second sound signal is 150-210 degrees.
[0019] In some embodiments, the method includes: obtaining a mapping relationship between the first reflection signal and the leakage sound signal according to the first reflection signal and the leakage sound signal emitted through the first gap.
[0020] In some embodiments, the earphone includes multiple first speakers, and the method further includes: adjusting the audio of the multiple first speakers according to the first reflection signal so that the amplitude of the sound in the second sound outlet is equal to the sound in the first gap and the phase difference is 150-210 degrees.
[0021] In some embodiments, the area of the first gap is obtained, and the area of the second sound outlet hole is adjusted so that the area of the second sound outlet hole accounts for 80%-120% of the area of the first gap.
[0022] In a third aspect, the present disclosure provides a computer-readable storage medium having stored thereon computer program instructions for acoustic adjustment of open-ear headphones, which, when executed by one or more processors, enable the processors to implement the determination method as described in any one of the second aspects of the present invention.
[0023] By providing an open earphone, method and computer-readable storage medium as described above, the sound leakage of the earphone can be greatly reduced. Specifically, the earphone of the disclosed embodiment includes: a sound outlet, including a first surface, and a side wall arranged around the first surface, a first speaker is arranged in a cavity formed by the side wall and the first surface; a first sound outlet hole is arranged on the first surface; a second sound outlet hole is arranged on the side wall adjacent to the first sound outlet hole and a first gap is formed between the sound outlet and the concha cavity of the human ear; wherein, in the wearing state, the first surface faces the ear canal direction of the human ear; in the working state of the first speaker, the first speaker emits audio, and emits a first sound signal along the first sound outlet hole, and emits a second sound signal along the second sound outlet hole; the first sound signal is reflected along the surface of the concha cavity, and is emitted in the first gap adjacent to the second sound outlet hole of the sound outlet, forming a first reflection signal; the first reflection signal and the second sound signal are at least partially superimposed and offset in the first direction, wherein the first direction is the propagation direction of the second sound signal. Through the above-mentioned settings, the disclosed scheme can reduce the leakage of earphone sound, thereby preventing the user's privacy from being leaked or affecting others during the use of the earphone. Furthermore, the scheme disclosed herein can play a preset audio, wherein the preset audio and the auricle reflection form a preset reflected audio; and based on the preset reflected audio and a preset target audio threshold, adjust the preset audio to obtain a first sound signal, thereby ensuring a consistent anti-sound leakage effect when different users have different wearing effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] By reading the detailed description below with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:
[0025] Figure 1 An exemplary structural diagram of an open-type earphone according to an embodiment of the present disclosure is shown;
[0026] Figure 2 A schematic diagram of the structure of a human ear is shown;
[0027] FIG3( a ) shows a front view of the earphone according to the embodiment of the present disclosure worn on a human ear;
[0028] FIG3( b ) shows an oblique view of the earphone according to the embodiment of the present disclosure being worn on a human ear;
[0029] Figure 4 A cross-sectional view of a cavity formed by the side wall and the first surface of the disclosed embodiment is shown;
[0030] FIG5( a ) is a schematic diagram showing a second sound outlet hole not blocked by the adjusting portion according to an embodiment of the present disclosure;
[0031] FIG5( b ) is a schematic diagram showing a state in which the adjusting portion partially blocks the second sound outlet hole according to an embodiment of the present disclosure;
[0032] FIG6( a ) shows a schematic diagram of another embodiment of the present disclosure in which the adjustment portion does not block the second sound outlet hole;
[0033] FIG6( b ) shows a schematic diagram of an adjustment portion partially covering the second sound outlet hole according to another embodiment of the present disclosure;
[0034] Figure 7 A schematic diagram showing a partial structural framework of the earphone according to an embodiment of the present disclosure;
[0035] Figure 8 A schematic flow chart of a method 800 for acoustic adjustment according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.
[0037] It should be understood that the terms "include" and "comprising" used in the specification and claims of the present disclosure indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.
[0038] It should also be understood that the terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. As used in this disclosure and claims, the singular forms of "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be further understood that the term "and / or" used in this disclosure and claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations.
[0039] As used in this specification and claims, the term "if" may be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" may be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]," depending on the context.
[0040] The specific implementation of the present disclosure is described in detail below with reference to the accompanying drawings.
[0041] Figure 1 An exemplary structural diagram of an open-type earphone according to an embodiment of the present disclosure is shown. Figure 2 A schematic diagram of the structure of the human ear is shown. In order to better understand the solution disclosed in the present invention, the following will be combined with Figure 1 and Figure 2 This chapter introduces the structure of the human ear, the structure of headphones, and the positional relationship between the headphones and the human ear when the headphones are worn on the human ear.
[0042] like Figure 1 and Figure 2 As shown, the human ear may include a concha cavity 210, an auricle 220 and an ear canal 230. The open-ear headphone may include: a sound outlet portion 110, including a first surface 111, and a side wall 112 arranged around the first surface 111, a first speaker 120 is arranged in a cavity formed by the side wall 112 and the first surface 111; a first sound outlet hole 1111 is arranged on the first surface 111; a second sound outlet hole 1122 is arranged on the side wall adjacent to the first sound outlet hole 1111, wherein, when in the wearing state, a first gap is formed between the sound portion 110 and the concha cavity of the human ear; the first surface 111 faces the human ear. The first speaker 120 is in the working state, and the first speaker 120 emits audio, and emits a first sound signal along the first sound outlet 1111, and emits a second sound signal along the second sound outlet 1122; the first sound signal is reflected along the surface of the concha cavity 210, and is emitted in the first gap 310 near the second sound outlet along the sound outlet 110, forming a first reflection signal; the first reflection signal and the second sound signal at least partially overlap and cancel each other in the first direction, wherein the first direction is the propagation direction of the second sound signal. In some embodiments, the amplitudes of the first sound signal and the second sound signal may be equal, and the phases may differ by 180 degrees, and the at least partial overlap and cancel may include overlap and cancel at a specific frequency.
[0043] In some embodiments, the first surface 111 may be circular, oval or other shapes. It is understood that during the wearing process, the first surface 111 may be worn in the concha cavity 210, so the shape of the first surface 111 may be fine-tuned according to the shape of the concha cavity 210, thereby increasing the wearing comfort. In some embodiments, the side wall 112 may be arranged around the first surface 111, wherein the side wall 112 and the first surface 111 may form the side and bottom surfaces of a cylinder. In some embodiments, the first sound hole 1111 can be arranged on the first surface 111, and the second sound hole can be arranged on the side wall 112, wherein the first sound hole 1111 can be arranged as a first arc along the edge of the first surface 111, and the second sound hole 1122 can be arranged as a second arc along the circumferential direction of the side wall 112. It can be understood that the center of the first arc is on the axis of the cavity formed by the side wall 112 and the first surface 111, and the center of the second arc is also on the axis of the cavity, and the first arc and the second arc can be arranged concentrically.
[0044] In some embodiments, one or more first speakers may be disposed in the cavity formed by the side wall 112 and the first surface 111. When one first speaker 120 is provided, the audio emitted by the first speaker 120 may be processed by the microprocessor component 140 so that the audio is divided into a first sound signal and a second sound signal, wherein the first sound signal may be emitted along the first sound outlet hole 1111, and the second sound signal may be emitted along the second sound outlet hole 1122; when two first speakers 120 are provided, the two first speakers 120 may respectively emit the first sound signal and the second sound signal, wherein the first sound signal may be emitted along the first sound outlet hole 1111, and the second sound signal may be emitted along the second sound outlet hole 1122.
[0045] In some embodiments, the aforementioned first speaker 120 may include a diaphragm, a magnet, a voice coil and other components. Among them, the aforementioned first speaker 120 may include an electric first speaker, an electromagnetic first speaker or a piezoelectric first speaker. The aforementioned magnet can provide the necessary magnetic field environment for the first speaker, so that the voice coil is subjected to the force in the magnetic field; the voice coil can be a coil wound on a lightweight cylindrical frame, which is located in the magnetic field of the first speaker. When the audio current passes through the voice coil, the voice coil will vibrate under the force in the magnetic field, thereby driving the diaphragm to vibrate and make a sound. The aforementioned diaphragm can be the core component of the first speaker to make a sound, which can vibrate with the change of the audio signal, thereby pushing the air to generate sound waves. When the aforementioned earphone is in working state, due to the aforementioned diaphragm driving the air to vibrate, a large amount of vibrating air will be generated inside the aforementioned earphone, and the aforementioned second sound outlet 1122 can be used as an exhaust hole, so that the aforementioned vibrating air can flow freely, thereby preventing pressure accumulation.
[0046] It should be understood that when a first speaker 120 is arranged in the cavity formed by the side wall 112 and the first surface 111, the first sound hole 1111 and the second sound hole 1122 can be located on both sides of the diaphragm 121 of the first speaker. Furthermore, the distance from the first sound hole 1111 to the diaphragm 121 can be equal to the distance from the second sound hole 1122 to the diaphragm 121.
[0047] In the wearing state, the sound outlet portion where the first surface 111 is located at least partially extends into the concha cavity 210, and the first gap 310 is the minimum cross-sectional area between the edge of the first surface 111 adjacent to the first sound outlet and the concha cavity 210, wherein the ratio of the first gap to the area of the second sound outlet 1122 is 4:5 to 6:5. In the wearing state, a first gap can be formed between the aforementioned sound outlet portion 110 and the concha cavity 210 of the human ear, the aforementioned first surface 111 can be oriented toward the ear canal of the human ear, and the aforementioned side wall 112 can be oriented toward the auricle of the human ear. In some embodiments, the aforementioned first sound signal can be emitted outward through the aforementioned first sound outlet 1111, and in the wearing state, the aforementioned first sound signal is reflected by the surface of the aforementioned concha cavity to form a first reflection signal. It can be understood that the part of the aforementioned first sound signal that directly propagates into the ear canal can be directly heard by the wearer, and the first reflection signal of the aforementioned first sound signal emitted in the first gap along the sound outlet portion 110 adjacent to the second sound outlet 1122 can propagate outward, which may cause sound leakage in the earphone.
[0048] In order to reduce the phenomenon of sound leakage of the aforementioned earphones, the second sound signal emitted by the aforementioned second sound outlet 1122 can be used. Specifically, the second sound signal generated by the aforementioned first speaker 120 can be transmitted outward through the aforementioned second sound outlet 1122. When the aforementioned second sound signal encounters the aforementioned first reflected sound signal propagating outward, it can be at least partially superimposed and offset with the aforementioned first reflected sound signal in the first direction, thereby reducing sound leakage, wherein the first direction can be the propagation direction of the second sound signal. It should be understood that the phase of the aforementioned second sound signal can be set to be 180 degrees different from the phase of the aforementioned first sound signal, so that the aforementioned second sound signal and the aforementioned first reflected sound signal can offset each other, thereby improving the problem of sound leakage of the earphones.
[0049] In some embodiments, the first sound outlet hole 1111 is set to a first arc along the edge of the first surface 111; the second sound outlet hole 1122 is set to a second arc along the circumferential direction of the side wall 112, and the first arc and the second arc are set concentrically, wherein the area ratio of the first sound outlet hole 1111 to the second sound outlet hole 1122 is 1:1 to 3:1, and optionally, the area ratio of the first sound outlet hole 1111 to the second sound outlet hole 1122 can be 1:1. The second sound outlet hole 1122 is designed along the arc strip, and the ratio of length to width can be 10:3 to 10:1, and optionally, the length of the second sound outlet hole can be 10mm and the width can be 1mm. By setting the ratio of the length to the width of the second sound hole 1122 and the ratio of the area of the second sound hole 1122 to the first sound hole 1111, the shape of the second sound hole 1122 can be made similar to that of the first gap 310. Due to the second sound signal emitted by the second sound hole 1122 and the first reflected signal emitted by the first gap 310, the effect of superposition and cancellation of the second sound signal and the first reflected signal can be increased, thereby improving the effect of preventing sound leakage of the earphone.
[0050] In some embodiments, the surface of the aforementioned first sound outlet 1111 and / or the aforementioned second sound outlet 1122 may also be provided with a plurality of holes arranged in a regular pattern, so as to allow air to flow in and out of the first speaker 120, prevent pressure accumulation, and allow the aforementioned first speaker 120 to vibrate more freely, thereby creating better sound quality and heavy bass effects. In addition, the pressure inside and outside the earphone can be balanced to prevent the pressure inside the earphone from being transmitted into the ear canal through the first sound outlet, thereby avoiding damage to the ear. In some embodiments, the aforementioned regular arrangement may include an annular shape along the first surface 111 and / or a first slit along the side wall 112 arranged at equal intervals.
[0051] When in the wearing state, a Helmholtz resonance cavity can be formed between the earphone and the concha cavity, and the first sound outlet hole 1111 can be set in the direction where the sound outlet part 110 is away from the vertex of the auricle 220, and the second sound outlet hole 1122 can also be set in the direction away from the vertex of the auricle. It can be understood that the ear canal 230 is located in the lower part of the concha cavity, and the aforementioned first sound outlet hole 1111 can be set in the direction where the sound outlet part is away from the vertex of the auricle 220. Its position close to the ear canal 230 when in the wearing state can be used to increase the listening effect. The second sound outlet hole 1122 can also be set. The second sound outlet hole (1122) is set in the direction away from the vertex of the auricle. The aforementioned second sound outlet hole can be set adjacent to the aforementioned first sound outlet hole 1111, and its direction can be the direction away from the ear shielding when in the wearing state. The aforementioned direction can intersect with the direction of the aforementioned first gap 310, so as to increase the effect of suppressing sound leakage.
[0052] FIG3(a) shows a front view of the earphone of the disclosed embodiment worn on a human ear; FIG3(b) shows an oblique view of the earphone of the disclosed embodiment worn on a human ear. As shown in FIG3(a) and FIG3(b), when in the wearing state, the sound outlet portion 110 where the first surface 111 is located at least partially extends into the concha cavity 210, and the sound outlet portion 110 can form a first gap 310 with the concha cavity 210 of the human ear. The first gap 310 can be the minimum cross-sectional area between the edge of the first surface 111 and the concha cavity, and the first surface 111 can face the ear canal 230 of the human ear. In some embodiments, the sound outlet portion 110 can at least partially extend into the concha cavity 210. Specifically, the length of the side wall 112 of the sound outlet portion 110 can partially extend into the concha cavity 210. It can be understood that the side wall can contact the concha cavity to assist in fixing the earphone. In addition, the first surface 111 of the sound outlet portion can completely extend into the concha cavity 210. The length of the side wall 112 partially extending into the concha cavity 210 may include at least 30% of the length of the side wall 112 extending into the concha cavity 210. By extending the sound outlet at least partially into the concha cavity and contacting the concha cavity, the earphone can be used to assist in fixing. In some embodiments, when the earphone is worn, a Helmholtz resonance cavity can be formed between the earphone and the concha cavity 210. The first sound outlet hole 1111 can be arranged in a direction away from the vertex of the auricle 220, and the second sound outlet hole 1122 can be arranged in a direction close to the vertex of the auricle 220. In some embodiments, the Helmholtz resonance cavity can absorb sound signals of specific frequencies, and the specific frequencies can be determined by the results of the Helmholtz resonance cavity. It can be understood that the sound signal can be composed of sounds of different frequencies. When the sound signal passes through the Helmholtz resonance cavity, some specific frequencies of the sound signal can be absorbed, and other frequencies can remain unchanged. Therefore, the frequency range of the sound signal can change. When the aforementioned first sound signal passes through the aforementioned Helmholtz resonance cavity, its corresponding frequency range will change, thereby causing the frequency range of the first reflected sound signal reflected from the Helmholtz resonance cavity to change. The solution of the present application can obtain Helmholtz resonance cavities of different sizes and structures by setting the size and shape of the sound output part 110, thereby obtaining first reflected sound signals of different frequency ranges. In some embodiments, sound signals of specific frequencies of the aforementioned first sound signal can be absorbed by the Helmholtz resonance cavity, and sounds of other frequencies can be partially superimposed and offset by the second sound signal, which can ultimately enhance the effect of suppressing sound leakage.
[0053] In some embodiments, when in working state, the first speaker 120 can emit audio, and emit a first sound signal along the first sound outlet (1111), and emit a second sound signal along the second sound outlet 1122. The aforementioned first sound signal is reflected along the surface of the concha cavity 210, and is emitted along the first gap 310 of the second sound outlet 1122 adjacent to the second sound outlet, thereby forming a first reflected signal; the aforementioned first reflected signal and the second sound signal at least partially overlap and cancel each other in a first direction, wherein the first direction is the propagation direction of the second sound signal, wherein the aforementioned at least partial overlap and cancelation may include overlap and cancelation at a specific frequency.
[0054] The first sound outlet hole 1111 is disposed in a direction away from the apex of the auricle 220 , and the second sound outlet hole 1122 is disposed in a direction away from the apex of the auricle.
[0055] It can be understood that the ear canal 230 is located at the lower part of the concha cavity, and the first sound outlet hole 1111 can be set in the direction away from the vertex of the auricle 220. When the ear canal 220 is worn, the first sound outlet hole 1111 can be close to the ear canal 230, which can be used to increase the listening effect. The second sound outlet hole 1122 can also be set in the direction away from the vertex of the auricle. The second sound outlet hole 1122 can be close to the first sound outlet hole 1111, and its direction can be away from the ear when worn. The direction can intersect with the direction of the first gap, so as to increase the effect of suppressing sound leakage.
[0056] Figure 4 A cross-sectional view of a cavity formed by the side wall 112 and the first surface 111 of the disclosed embodiment is shown. As shown in the figure, the first sound outlet hole 1111 and the second sound outlet hole 1122 may be located on both sides of the diaphragm 121. Optionally, the first sound outlet hole 1111 and the second sound outlet hole 1122 may be symmetrically arranged on both sides of the diaphragm 121. The first sound outlet hole 1111 may be arranged in a first arc shape along the edge of the first surface 111, and the second sound outlet hole 1122 may be arranged in a second arc shape along the circumferential direction of the side wall 112. The area ratio of the first sound outlet hole 1111 to the second sound outlet hole 1122 is 1:1 to 3:1. Optionally, the area ratio of the first sound outlet hole 1111 to the second sound outlet hole 1122 may be 1:1. The second sound outlet hole 1122 is designed along an arc-shaped strip, and the ratio of length to width may be 10:3 to 10:1. Optionally, the length of the first gap may be 10 mm, and the width may be 1 mm.
[0057] In one embodiment, the first sound outlet hole 1111 and the second sound outlet hole 1122 are symmetrically arranged on both sides of the diaphragm 121, and the distances from the first sound outlet hole 1111 and the second sound outlet hole 1122 to the diaphragm 121 are equal, and the first sound outlet hole can be located above the diaphragm 121, and the second sound outlet hole 1122 can be located below the diaphragm 121, wherein the above of the diaphragm can refer to the direction in which the vibration part of the diaphragm is raised, and the below of the diaphragm can refer to the direction in which the vibration part of the diaphragm is concave. In some embodiments, the earphone may include a plurality of first speakers, wherein the plurality of first speakers can sound synchronously. Specifically, if the earphone includes two first speakers, one first speaker can be arranged inside the first sound outlet hole, and another first speaker can be arranged inside the second sound outlet hole; if the earphone includes three first speakers, the two first speakers can be arranged together inside the first sound outlet hole, and another speaker can be arranged inside the second sound outlet hole. The selection of the number and position of the speakers disclosed in this disclosure is exemplary and not restrictive.
[0058] In one embodiment, the first arc can be arranged concentrically with the second arc. Specifically, the center of the first arc can be on the axis of the cavity formed by the side wall 112 and the first surface 111, and the center of the second arc is also on the axis of the cavity. The concentric arrangement of the first arc and the second arc can include arranging the center of the first arc and the center of the second arc to be located on the axis of the cavity.
[0059] In one embodiment, the area of the first sound outlet hole 1111 may be fixed, and the area of the second sound outlet hole 1122 may be variable. An adjustment portion 1122-1 may be provided in the second sound outlet hole 1122. By adjusting the area of the second sound outlet hole, the ratio of the area of the second sound outlet hole to the area of the first sound outlet hole may be adjusted. How to adjust the area of the second sound outlet hole will be described in detail in conjunction with FIG. 5(a), 5(b) and FIG. 6.
[0060] FIG5(a) shows a schematic diagram of the adjustment portion of the disclosed embodiment that does not block the second sound outlet hole, and FIG5(b) shows a schematic diagram of the adjustment portion of the disclosed embodiment that partially blocks the second sound outlet hole. As shown in FIG5(a) and FIG5(b), in one embodiment, a movable adjustment portion 1122-1 may be provided inside the second sound outlet hole 1122 for adjusting the area of the second sound outlet hole 1122. In one embodiment, the adjustment portion 1122-1 may be located above the second sound outlet hole 1122. When the area of the second sound outlet hole 1122 needs to be adjusted, the adjustment portion 1122-1 may be slowly moved downward, so that the second sound outlet hole 1122 may be blocked, and the area of the second sound outlet hole 1122 may be changed.
[0061] In some embodiments, the sound outlet portion 110 where the first surface 111 is located at least partially extends into the concha cavity, and the first gap is the minimum cross-sectional area between the edge of the first surface 111 and the concha cavity, wherein the ratio of the first gap to the area of the second sound outlet hole 1122 is 4:5 to 6:5. Optionally, the ratio of the first gap to the area of the second sound outlet hole 1122 can be 1:1.
[0062] When the earphone is worn, a Helmholtz resonance cavity is formed between the earphone and the concha cavity, and a first gap 310 can be formed between the sound outlet 110 and the concha cavity of the human ear, wherein the Helmholtz resonance cavity can be used to propagate the first sound signal, and a portion of the first sound signal enters the ear canal after passing through the Helmholtz resonance cavity, and another portion is emitted from the first gap near the second sound outlet hole 1122 along the sound outlet 110 to form a first reflection signal. It can be understood that the aforementioned first reflection signal can propagate outward after passing through the first gap 310, and the aforementioned second sound signal can propagate outward after passing through the aforementioned second sound outlet hole 1122, so the size of the aforementioned first gap and the aforementioned second sound outlet hole 1122 can affect the propagation of the aforementioned first reflection signal and the aforementioned second sound signal, and the size of the aforementioned second sound outlet hole 1122 can be adjusted so that the first reflection signal and the second sound signal are at least partially superimposed and offset in the first direction. When the ratio of the area of the aforementioned first gap to the area of the second sound outlet hole 1122 is adjusted to 1:1, the effect of suppressing sound leakage can be increased.
[0063] FIG6(a) shows a schematic diagram of another embodiment of the present disclosure in which the adjustment portion 1122-1 does not block the second sound outlet hole 1122, and FIG6(b) shows a schematic diagram of another embodiment of the present disclosure in which the adjustment portion 1122-1 partially blocks the second sound outlet hole 1122. As shown in FIG6(a) and FIG6(b), in one embodiment, a movable adjustment portion 1122-1 may be provided inside the aforementioned first gap to adjust the area of the second sound outlet hole 1122. In one embodiment, the aforementioned adjustment portion 1122-1 may be located on the right side of the aforementioned second sound outlet hole 1122. When the area of the aforementioned second sound outlet hole 1122 needs to be adjusted, the aforementioned 1122-1 may be slowly moved to the left, so that the aforementioned second sound outlet hole 1122 can be blocked, and then the area of the aforementioned second sound outlet hole 1122 can be changed. When in the wearing state, the sound outlet portion 110 where the aforementioned first surface 111 is located at least partially extends into the concha cavity, and the first gap is the minimum cross-sectional area between the edge of the first surface 111 and the concha cavity, wherein the ratio of the first gap to the area of the second sound outlet hole 1122 is 4:5 to 6:5. Optionally, the ratio of the first gap to the area of the second sound outlet hole 1122 can be 1:1. It can be understood that since the aforementioned second sound outlet hole is located on the side wall of the sound outlet portion and is arc-shaped, the aforementioned adjustment portion 1122-1 can also be located on the side wall of the sound outlet portion and is configured to be arc-shaped.
[0064] When the earphone is worn, a Helmholtz resonance cavity is formed between the earphone and the concha cavity, and a first gap can be formed between the sound outlet 110 and the concha cavity of the human ear, wherein the Helmholtz resonance cavity can be used to propagate the first sound signal, and a portion of the first sound signal enters the ear canal after passing through the Helmholtz resonance cavity, and another portion is emitted from the first gap 310 near the second sound outlet hole 1122 along the sound outlet 110 to form a first reflection signal. It can be understood that the aforementioned first reflection signal can propagate outward after passing through the first gap, and the aforementioned second sound signal can propagate outward after passing through the aforementioned second sound outlet hole 1122, so the size of the aforementioned first gap and the aforementioned second sound outlet hole 1122 can affect the propagation of the aforementioned first reflection signal and the aforementioned second sound signal, and the size of the aforementioned second sound outlet hole 1122 can be adjusted so that the first reflection signal and the second sound signal are at least partially superimposed and offset in the first direction. When the ratio of the area of the aforementioned first gap to the area of the second sound outlet hole 1122 is adjusted to 1:1, the effect of suppressing sound leakage can be increased.
[0065] Figure 7A schematic diagram of the structural framework of some components of the headset of the disclosed embodiment is shown. As shown in the figure, the headset may also include a first speaker 120, which may include a diaphragm 121, disposed inside the headset, wherein the first sound outlet 1111 and the second sound outlet 1122 are respectively located on both sides of the diaphragm 121; an audio collection component 130, which may be used to collect the first reflected signal; and a microprocessor component 140, which is disposed inside the headset and is used to divide the audio into a first sound signal and a second sound signal and delay the first sound signal and / or the second sound signal, wherein delaying the first sound signal and / or the second sound signal may include delaying the phase of the first sound signal and / or the second sound signal.
[0066] In some embodiments, the diaphragm can convert electrical signals into mechanical vibrations and finally into sounds, wherein the diaphragm can be a paper diaphragm, a plastic diaphragm, a carbon fiber diaphragm, a graphene diaphragm, a composite diaphragm, a silk diaphragm, a woven diaphragm, an aluminum diaphragm, or a polymer synthetic fiber diaphragm. Optionally, the diaphragm can be a composite diaphragm, which is made by fusing diaphragms of different materials together. The composite diaphragm can provide a more diverse sound experience, because diaphragms of different materials complement each other, making the sound quality of the entire diaphragm more balanced and rich in layers. In addition, its weight is generally lower than that of a metal diaphragm.
[0067] In some embodiments, the aforementioned audio acquisition component 130 may include a microphone, and the aforementioned microphone may convert a sound signal into an electrical signal, wherein the aforementioned microphone may include an electret microphone, a silicon microphone, and a dynamic microphone, etc. Optionally, the aforementioned microphone may select a silicon microphone, which has the advantages of small size, good consistency, and strong anti-noise ability. In some embodiments, the aforementioned microprocessor component 140 may include a digital signal processor, and the aforementioned digital signal processor may process the audio signal, control the volume and equalizer, and simulate the sound field. Specifically, the aforementioned digital signal processing processor may divide the audio into a first sound signal and a second sound signal, and may also delay the phase of the aforementioned first sound signal and / or the second sound signal, which may be used to at least partially superimpose and cancel with the aforementioned first sound signal. In some embodiments, the aforementioned at least partial superposition and cancellation may include superposition and cancellation at a specific frequency.
[0068] Figure 8 FIG. 8 is a flow chart of a method 800 for acoustic adjustment according to an embodiment of the present disclosure. Figure 8As shown, the method may include: S810, when in working state, the speaker plays audio, the aforementioned audio emits a first sound signal along the first sound outlet 1111, and emits a second sound signal along the second sound outlet 1122; S820, obtaining the first reflection signal, wherein the aforementioned first reflection signal is formed by the first sound signal being reflected along the surface of the human ear and emitted along the first gap 310 between the earphone and the human ear, wherein the aforementioned first reflection signal and the second sound signal are at least partially superimposed and offset in a first direction, and the aforementioned first direction is the propagation direction of the second sound signal.
[0069] In some embodiments, the earphone may include a sound outlet portion 110, wherein the sound outlet portion 110 includes a first surface 111, and a side wall 112 arranged around the first surface 111, and a speaker 120 is arranged in a cavity formed by the side wall 112 and the first surface 111; a first sound outlet hole 1111 is arranged on the first surface 111; and a second sound outlet hole 1122 may be arranged on the side wall 112 adjacent to the first sound outlet hole 1111.
[0070] In some embodiments, the aforementioned method may further include determining the distance from the first sound outlet 1111 to the concha cavity 210 based on the first reflected signal; and adjusting the acoustic parameters of the first sound signal and / or the second sound signal so that the phase difference between the first sound signal and the second sound signal is 150-210 degrees. The aforementioned acoustic parameters may include the time of sound emission and the phase of the sound signal.
[0071] In some embodiments, the distance from the first sound outlet to the concha cavity 210 can be determined by the aforementioned microprocessor component 140, the first speaker 120, and the microphone, wherein the preset audio can be played by the aforementioned first speaker, and then the preset reflected audio can be received by the aforementioned microphone, and finally the distance can be calculated by the aforementioned microprocessor component 140. Specifically, the distance d between the aforementioned first sound outlet 1111 and the aforementioned concha cavity 210 can be calculated by the time when the first speaker 120 plays the preset audio and the time when the microphone receives the preset reflected audio, wherein the aforementioned distance d can be calculated by the following formula:
[0072]
[0073] Among them, t2 may be the time when the microphone receives the aforementioned preset reflected audio, t1 may be the time when the aforementioned first speaker 120 plays the preset audio, and C may be the speed of the sound wave.
[0074] After obtaining the distance d between the sound outlet and the concha cavity, the compensation gain X can be calculated based on the preset distance D. In one embodiment, the compensation gain X can be calculated by the following formula:
[0075]
[0076] Wherein, d may be the distance between the aforementioned first sound outlet 1111 and the concha cavity, and D may be a preset distance.
[0077] After obtaining the aforementioned compensation gain X, the aforementioned microprocessor component 140 can adjust the aforementioned preset audio based on the aforementioned compensation gain X to obtain a first sound signal. In some embodiments, adjusting the preset audio may include adjusting the amplitude and phase of the aforementioned preset audio. Through the aforementioned compensation, different wearers can have better hearing effects.
[0078] In some embodiments, the method of acoustic adjustment may further include obtaining a mapping relationship between the first reflection signal and the leakage signal according to the first reflection signal and the leakage signal emitted through the first gap 310. In one embodiment, the aforementioned mapping relationship may include a phase difference and an amplitude difference between the first reflection signal and the leakage signal. In some embodiments, the aforementioned adjustment of the acoustic parameters of the first sound signal and / or the second sound signal makes the phase difference between the first sound signal and the second sound signal be 150-210 degrees. Among them, the first sound signal may be adjusted so that the phase difference between the first sound signal and the second sound signal is 150-210 degrees, or the second sound signal may be adjusted so that the phase difference between the first sound signal and the second sound signal is 150-210 degrees, or the acoustic parameters of the first sound signal and the second sound signal may be adjusted so that the phase difference between the first sound signal and the second sound signal is 150-210 degrees. In some embodiments, the aforementioned acoustic signal may include a phase and an amplitude. Optionally, the acoustic parameters of the first sound signal and the second sound signal may be adjusted so that the phase difference between the first sound signal and the second sound signal is 180 degrees. Through the aforementioned adjustment, the first reflected signal and the second sound signal can be at least partially superimposed and offset in the first direction, thereby reducing sound leakage, wherein the first direction is the propagation direction of the second sound signal. In some embodiments, the aforementioned acoustic adjustment method may also include obtaining the area of the first gap, adjusting the area of the second sound outlet hole 1122, so that the area of the second sound outlet hole 1122 accounts for 80%-120% of the area of the first gap. Optionally, when the area of the second sound outlet hole 1122 is adjusted so that the area of the second sound outlet hole 1122 accounts for 100% of the area of the first gap, the effect of suppressing sound leakage can be increased.
[0079] In one embodiment, the aforementioned earphones may include multiple first speakers, and the aforementioned acoustic adjustment method may include adjusting the audio of the multiple first speakers 120 according to the first reflected signal, so that the sound at the second sound outlet 1122 has the same amplitude as the sound at the first gap and the phase difference is 150-210 degrees, thereby achieving the effect of suppressing sound leakage.
[0080] In one embodiment, the aforementioned earphones may include multiple first speakers, and the aforementioned acoustic adjustment method may include adjusting the audio of the multiple first speakers 120 according to the first reflected signal, so that the sound at the second sound outlet 1122 has the same amplitude as the sound at the first gap and the phase difference is 180 degrees, thereby achieving a better effect of suppressing sound leakage.
[0081] It is understandable that open-type earphones can be hung on the ears, and the sound-emitting part of the earphones is at a certain distance from the ear canal and does not directly fit the ear canal, so sound leakage may occur. By designing the position and structure of the first and second sound outlet holes in the open-type earphones in the solution of the present application, and by designing the aforementioned acoustic tuning method, the effect of suppressing sound leakage can be effectively achieved.
[0082] According to the above description in combination with the accompanying drawings, those skilled in the art can also understand that the embodiments of the present application can also be implemented by a software program. Therefore, the present application also provides a computer-readable storage medium. The computer-readable storage medium stores computer-readable instructions for acoustic adjustment of open-type headphones. When the computer-readable instructions are executed by one or more processors, the present application in combination with the accompanying drawings can be implemented. Figure 8 A simulation method for acoustic adjustment of open-ear headphones is described.
[0083] According to the above description in combination with the accompanying drawings, those skilled in the art can also understand that the embodiments of the present application can also be implemented by a software program. The present invention also discloses a computer-readable storage medium, in which computer program instructions for acoustic adjustment of open headphones are stored, and the program instructions are suitable for being loaded and executed by a processor: using test data to perform operations on operators in the neural network to obtain test results for the operators, wherein the operators are associated with layers in the neural network; comparing the test results with benchmark results for the operators to determine the difference between the test results and the benchmark results; and evaluating the difference according to an evaluation criterion to determine the accuracy level of the operator.
[0084] The computer-readable storage medium may be any suitable magnetic storage medium or magneto-optical storage medium, such as Resistive Random Access Memory (RRAM), Dynamic Random Access Memory (DRAM), Static Random Access Memory (SRAM), Enhanced Dynamic Random Access Memory (EDRAM), High-Bandwidth Memory (HBM), Hybrid Memory Cube (HMC), etc., or any other medium that can be used to store the required information and can be accessed by an application, a module, or both. Any such computer storage medium may be part of a device or accessible or connectable to a device. Any application or module described in the present invention may be implemented using computer-readable / executable instructions that may be stored or otherwise maintained by such a computer-readable medium.
[0085] It should also be understood that any module, unit, component, server, computer, terminal or device that executes instructions of the present invention may include or otherwise access computer-readable media, such as storage media, computer storage media or data storage devices (removable and / or non-removable) such as disks, optical disks or tapes. Computer storage media may include volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules or other data.
[0086] Although multiple embodiments of the present disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art may think of many changes, modifications, and alternatives without departing from the thought and spirit of the present disclosure. It should be understood that in the process of practicing the present disclosure, various alternatives to the embodiments of the present disclosure described herein may be adopted. The attached claims are intended to define the scope of protection of the present disclosure, and therefore cover equivalents or alternatives within the scope of these claims.
Claims
1. An open-type headphone, characterized in that: The earphone comprises: The sound output portion (110) comprises a first surface (111) and a side wall (112) arranged around the first surface (111); a first speaker (120) is arranged in a cavity formed by the side wall (112) and the first surface (111); A first sound outlet hole (1111) is provided on the first surface (111); A second sound outlet hole (1122) is provided on the side wall (112) adjacent to the first sound outlet hole (1111), wherein, when the wearer is in a wearing state, a first gap (310) is formed between the sound outlet portion (110) and the concha cavity (210) of the human ear, and the first surface (111) faces the ear canal of the human ear; When the first speaker (120) is in a working state, the first speaker (120) emits audio, and emits a first sound signal along a first sound outlet hole (1111), and emits a second sound signal along a second sound outlet hole (1122); The first sound signal is reflected along the surface of the concha cavity (210) and emitted from a first gap (310) of a second sound outlet hole (1122) adjacent to the sound outlet portion (110) to form a first reflected signal; the first reflected signal and the second sound signal at least partially overlap and cancel each other out in a first direction, wherein the first direction is the propagation direction of the second sound signal.
2. The earphone according to claim 1, characterized in that The first sound outlet hole (1111) is arranged in a first arc shape along the edge of the first surface (111); The second sound outlet hole (1122) is arranged in a second arc shape along the circumferential direction of the side wall (112), and the first arc shape is arranged concentrically with the second arc shape.
3. The earphone according to claim 1, characterized in that The area ratio of the first sound outlet hole (1111) to the second sound outlet hole (1122) is 1:1 to 3:
1.
4. The earphone according to claim 1, characterized in that The second sound outlet hole (1122) is designed to be an elongated strip along the arc, and the ratio of length to width is 10:3 to 10:
1.
5. The earphone according to claim 1, characterized in that When in the worn state, the sound outlet portion where the first surface (111) is located at least partially extends into the concha cavity (210), and the first gap (310) is the minimum cross-sectional area between the edge of the first surface (111) adjacent to the first sound outlet and the concha cavity, wherein the ratio of the first gap to the area of the second sound outlet (1122) is 4:5 to 6:
5.
6. The earphone according to claim 1, characterized in that When in the wearing state, a Helmholtz resonance cavity is formed between the earphone and the concha cavity (210), the first sound outlet hole (1111) is arranged in a direction away from the apex of the auricle (220) at the sound outlet, and the second sound outlet hole (1122) is arranged in a direction away from the apex of the auricle.
7. The earphone according to claim 1, characterized in that A movable adjustment portion (1122-1) is provided inside the second sound outlet hole (1122) for adjusting the area of the second sound outlet hole (1122).
8. The earphone according to claim 1, characterized in that It also includes a plurality of first speakers (1212), wherein the plurality of first speakers (120) emit sound synchronously.
9. The earphone according to claim 1, characterized in that Also includes: A first speaker (120), the first speaker comprising a diaphragm (121), arranged inside the earphone, wherein the first sound outlet hole (1111) and the second sound outlet hole (1122) are respectively located on both sides of the diaphragm (121); An audio collection component (130), used for collecting the first reflected signal; and a microprocessor component (140) disposed inside the earphone, for dividing the audio into a first sound signal and a second sound signal and delaying the first sound signal and / or the second sound signal.
10. The earphone according to claim 1, characterized in that The first speaker comprises a diaphragm (121) which is arranged inside the earphone, wherein the first sound outlet hole (1111) and the second sound outlet hole (1122) are respectively located on both sides of the diaphragm (121), and the first sound outlet hole (1111) and the second sound outlet hole (1122) are at an equal distance from the diaphragm (121).
11. An acoustic adjustment method for an open-type earphone, the earphone comprising a sound outlet, wherein the sound outlet comprises a first surface (111) and a side wall (112) arranged around the first surface (111), a first speaker (120) is arranged in a cavity formed by the side wall (112) and the first surface (111); a first sound outlet hole (1111) is arranged on the first surface (111); a second sound outlet hole (1122) is arranged on the side wall (112) adjacent to the first sound outlet hole (1111), characterized in that: The method comprises: When in working state, the first speaker (120) plays audio, the audio emits a first sound signal along the first sound outlet hole (1111), and emits a second sound signal along the second sound outlet hole (1122); Acquiring the first reflection signal, wherein the first reflection signal is formed by the first sound signal being reflected along the surface of the human ear and emitted along a first gap (310) between the earphone and the human ear; The first reflected signal and the second sound signal at least partially overlap and cancel each other out in a first direction, wherein the first direction is a propagation direction of the second sound signal.
12. The method according to claim 11, characterized in that The method further comprises: Based on the first reflected signal, determining the distance from the first sound outlet hole (1111) to the concha cavity (210); The acoustic parameters of the first sound signal and / or the second sound signal are adjusted so that the phase difference between the first sound signal and the second sound signal is 150-210 degrees.
13. The method according to claim 11, characterized in that The method comprises: obtaining a mapping relationship between the first reflection signal and the leakage sound signal according to the first reflection signal and the leakage sound signal emitted through the first gap.
14. The method according to claim 11, characterized in that The earphone comprises a plurality of first speakers (120), and the method further comprises: adjusting the audio of the plurality of first speakers (120) according to the first reflection signal, so that the amplitude of the sound in the second sound outlet (1122) is equal to the amplitude of the sound in the first gap and the phase difference is 150-210 degrees.
15. The method according to claim 11, characterized in that The method further comprises: obtaining the area of the first gap, and adjusting the area of the second sound outlet hole (1122) so that the area of the second sound outlet hole (1122) accounts for 80%-120% of the area of the first gap.
16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the acoustic adjustment method for open-ear headphones is implemented as claimed in any one of claims 11 to 15.