A microphone angle adjusting method and an ear-wearable audio device

Abstract

The embodiment of the present disclosure provides a microphone angle adjusting method and an ear-wearable audio device, and relates to the technical field of microphones. The method comprises the following steps: detecting a call request, generating an adjusting instruction in response to the detection of the call request, and controlling a rotating part to rotate based on the adjusting instruction, so that the path distance of the sound emitted by the wearer to the microphone assembly is the shortest. The embodiment of the present disclosure realizes intelligent angle adjustment of the microphone, improves the sound pickup effect of the microphone in a scenario where a call is needed, and enhances the intelligence of the ear-wearable audio device.

Description

Technical Field

[0001] This disclosure relates to the field of smart devices, and more particularly to a microphone angle adjustment method and an ear-worn audio device. Background Technology

[0002] With the widespread adoption of smart devices, the application of ear-worn audio devices such as headphones and hearing aids is becoming increasingly common. Today's headphones, in addition to audio playback and call functions, mostly incorporate active noise cancellation (ANC or ANR) to enhance the user experience; some even integrate hearing aid functionality. Hearing aids, besides traditional hearing aid functions, also integrate audio playback and call functions typically found in headphones, and some even feature active noise cancellation to improve the user experience during audio playback. For these ear-worn audio devices, good ambient sound pickup is crucial when using active noise cancellation or hearing aid functions, while good voice pickup is essential during calls. Therefore, users' demand for intelligent microphone integration in ear-worn audio devices is further increasing. In related technologies, most ear-worn audio devices include left and right earpieces, each containing a microphone component. However, they lack the ability to adjust the microphone angle on these components, resulting in poor sound pickup and limited intelligence. Summary of the Invention

[0003] This disclosure provides a microphone angle adjustment method and an ear-worn audio device to solve problems in related technologies, realize intelligent microphone angle adjustment, improve microphone pickup effect and enhance microphone intelligence.

[0004] A first aspect of this disclosure provides a microphone angle adjustment method applied to an ear-worn audio device. The ear-worn audio device includes a main body and a rotating part rotatably connected to the main body, and a microphone assembly is provided on the rotating part. The method includes: detecting a call request; generating an adjustment command in response to detecting a call request; and controlling the rotating part to rotate based on the adjustment command so that the path distance for the sound emitted by the wearer to be transmitted to the microphone assembly is minimized.

[0005] In some embodiments of this disclosure, the method further includes: determining the current position of the microphone assembly; calculating the rotation angle and / or rotation direction of the rotating part based on the current position; and controlling the rotating part to rotate based on the rotation angle and / or rotation direction.

[0006] In some embodiments of this disclosure, the microphone assembly includes a first microphone and a second microphone. The first microphone has a first sound-receiving hole, and the second microphone has a second sound-receiving hole. Based on an adjustment command, controlling the rotating part to rotate so that the path distance for the sound emitted by the wearer to be transmitted to the microphone assembly is minimized includes: determining a two-dimensional projection surface, which is either the plane where the wearer's helix is ​​located or a plane parallel to the wearer's side; when the projection of the wearer's mouth on the two-dimensional projection surface is located on the straight line connecting the projections of the first sound-receiving hole and the second sound-receiving hole on the two-dimensional projection surface, it is determined that the path distance for the sound emitted by the wearer to be transmitted to the microphone assembly is minimized.

[0007] In some embodiments of this disclosure, the ear-worn audio device includes a first device and a second device. The first device includes a first microphone assembly, and the second device includes a second microphone assembly. Controlling the rotation of a rotating part based on an adjustment command to minimize the path distance for sound emitted by the wearer to reach the microphone assembly includes: controlling the rotation of the rotating part of the first microphone assembly to make the line connecting the first and second sound-receiving holes of the first microphone assembly horizontal, and controlling the rotation of the rotating part of the second microphone assembly to minimize the path distance for sound emitted by the wearer to reach the second microphone assembly.

[0008] A second aspect of this disclosure provides an ear-worn audio device, comprising: a main body; a rotating part rotatably connected to the main body, wherein a microphone assembly is provided on the rotating part; a drive mechanism for driving the rotating part to rotate based on an adjustment command; and a processor capable of executing the method of any of the preceding embodiments of the first aspect of this disclosure.

[0009] In some embodiments of this disclosure, the device further includes: a Hall element, which is mounted in either the rotating part or the main body, and the other part is mounted with a magnetic element, the magnetic element including a first magnetic element and a second magnetic element, the Hall element rotating relative to the first magnetic element and the second magnetic element, the magnetic polarity of the surface of the first magnetic element opposite to the Hall element and the magnetic polarity of the surface of the second magnetic element opposite to the Hall element.

[0010] In some embodiments of this disclosure, the rotating part is provided with a first contact and a second contact, and the main body is provided with a third contact and a fourth contact. When the first contact contacts the third contact, the first circuit is turned on and a first electrical signal is generated. When the second contact contacts the fourth contact, the second circuit is turned on and a second electrical signal is generated.

[0011] In some embodiments of this disclosure, a variable resistance assembly is provided at the connection between the main body and the rotating part. The resistor part of the variable resistance assembly is provided on either the main body or the rotating part, and a brush is arranged on the other part. When the rotating part rotates relative to the main body, the resistance value connected to the circuit changes.

[0012] In some embodiments of this disclosure, the device further includes a gravity sensor disposed on the rotating part for detecting the rotation angle of the rotating part.

[0013] In some embodiments of this disclosure, the ear-worn audio device is a hearing aid; and / or, the rotating part is the back cover of the main body.

[0014] In summary, the microphone angle adjustment method proposed in this disclosure detects a call request; generates an adjustment command in response to the detected call request; and controls the rotation of the rotating part based on the adjustment command to minimize the path distance for the sound emitted by the wearer to be transmitted to the microphone assembly. This achieves intelligent angle adjustment of the microphone, improves the microphone's sound pickup effect in scenarios where calls are required, and enhances the intelligence of the ear-worn audio device.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the embodiments of this disclosure. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of the embodiments of this disclosure, and are not intended to unduly limit the embodiments of this disclosure.

[0017] Figure 1 A schematic flowchart illustrating a microphone angle adjustment method provided in an embodiment of this disclosure;

[0018] Figure 2 A schematic flowchart illustrating a microphone angle adjustment method provided in an embodiment of this disclosure;

[0019] Figure 3 This is a schematic diagram showing the position of a microphone assembly according to an embodiment of the present disclosure;

[0020] Figure 4 A schematic diagram illustrating the viewing direction of a two-dimensional projection surface provided in an embodiment of this disclosure;

[0021] Figure 5 This is a schematic diagram of the structure of a microphone assembly provided in an embodiment of the present disclosure;

[0022] Figure 6 This is a schematic diagram of the structure of a microphone assembly provided in an embodiment of the present disclosure;

[0023] Figure 7 This is a schematic diagram of the structure of a microphone assembly provided in an embodiment of the present disclosure;

[0024] Figure 8 This is a schematic diagram of the structure of a microphone assembly provided in an embodiment of the present disclosure;

[0025] Figure 9 This is a schematic diagram of the structure of a microphone assembly provided in an embodiment of the present disclosure;

[0026] Figure 10 This is a schematic diagram of the structure of a microphone assembly provided in an embodiment of the present disclosure;

[0027] Figure 11 This is a schematic diagram of the structure of a microphone assembly provided in an embodiment of the present disclosure;

[0028] Figure 12 This is a schematic diagram of the structure of a microphone assembly provided in an embodiment of the present disclosure;

[0029] Figure 13 A schematic diagram of a wearable audio device provided in an embodiment of this disclosure;

[0030] Figure 14 A schematic diagram of an earphone structure with a handle provided in an embodiment of this disclosure;

[0031] Figure 15 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure. Detailed Implementation

[0032] Embodiments of this disclosure are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this disclosure, and should not be construed as limiting the embodiments of this disclosure.

[0033] Ear-worn audio devices include headphones and hearing aids. Hearing aids include hearing aids and headphones with hearing aid functions, enabling people with hearing loss to communicate normally using their residual hearing. With the increasing prevalence of hearing aids, simple hearing aid functions are no longer sufficient to meet users' expectations. In recent years, many hearing aids have integrated music playback and call functions. Furthermore, with the maturity of Active Noise Control (ANC) and Active Noise Reduction (ANR) technologies, active noise cancellation has become an essential feature of most headphones. These headphones integrate music playback, call functions, and active noise cancellation. Some hearing aids also integrate active noise cancellation to improve the user experience when using music playback and call functions.

[0034] The microphone requirements for ear-worn audio devices differ between hearing aid and call modes, and also between active noise cancellation and call modes. Specifically, in call mode, the microphone needs to clearly capture the user's voice for good call quality; in hearing aid and active noise cancellation modes, the microphone needs to clearly capture ambient sound to achieve the hearing aid / noise cancellation function. Due to cost considerations, most ear-worn audio devices only have two microphones in each ear, which cannot meet the aforementioned sound pickup requirements and also prevents microphone angle adjustment, resulting in poor sound pickup and intelligence. These requirements necessitate intelligent adjustment of the microphones in ear-worn audio devices.

[0035] To address the problems existing in related technologies, this disclosure proposes a microphone angle adjustment method. In this method, the position of the microphone component of the ear-worn audio device can be intelligently adjusted. For example, when it is necessary to pick up ambient sounds, the microphone component can be adjusted to a first state to achieve the best sound pickup effect. When the user needs to make a voice call, the microphone component can be adjusted to a second state to better pick up voice information, highlight the voice, and reduce interference from other ambient sounds, thereby enhancing the intelligence of the microphone in the audio device and enabling the ear-worn audio device to achieve a better sound pickup effect.

[0036] The following describes in detail, with reference to the accompanying drawings, a microphone angle adjustment method and an ear-worn audio device according to the embodiments of this disclosure.

[0037] Figure 1 This is a flowchart illustrating a microphone angle adjustment method provided in an embodiment of this disclosure. The method is applied to an ear-worn audio device, and the method described in this embodiment can be applied to any device capable of collecting, transmitting, and acquiring audio signals. The ear-worn audio device described in this embodiment may include a main body and a rotating part rotatably connected to the main body. A microphone assembly is provided on the rotating part, which is used to collect ambient sound for hearing aid / noise reduction functions, or to collect the wearer's voice for calls. In one arrangement, the rotating part may be presented as a back cover or panel of the main body, rather than being located on the handle of the ear-worn audio device, such as... Figure 3 and Figure 14 As shown; the microphone assembly is mounted on the rotating part and its angle can be adjusted as the rotating part rotates.

[0038] In some alternative embodiments of this disclosure, the ear-worn audio device may be a hearing aid. In other alternative embodiments, the ear-worn audio device may be headphones, specifically, in-ear headphones, such as smart noise-canceling headphones.

[0039] It is understood that the ear-worn audio device can be a single device worn on one ear of a user, or a pair of devices worn on both ears of a user, and this is not limited in the embodiments of this disclosure. Furthermore, the ear-worn audio device in the embodiments of this disclosure has a controller and a drive mechanism, wherein the controller is used to generate control signals, and the drive mechanism controls the microphone assembly to perform corresponding adjustment operations (e.g., rotation) according to the generated control signals.

[0040] like Figure 1 As shown, the method includes the following steps:

[0041] Step 101: Detect call requests.

[0042] In this embodiment of the disclosure, the aforementioned call request is not limited to the device initiating the request; it can be an active or passive call request, or other call instruction. This embodiment of the disclosure also does not limit the type of call; it can be an audio or video call based on a wireless network or other communication method, such as a voice or video call based on a mobile signal provider, or a voice or video call based on an instant messaging application. These are not limited in this embodiment of the disclosure.

[0043] Specifically, in one embodiment of this disclosure, the ear-worn audio device establishes a connection with terminal devices such as mobile phones and tablets. When a user actively initiates a call request on the terminal device (such as making a phone call through a network operator or initiating a voice / video call through an application such as WeChat), the ear-worn device can determine that a call request has been detected. When a mobile terminal connected to the ear-worn audio device passively receives a call request (such as receiving a phone call from a network operator or receiving a voice / video call from an application such as QQ), the ear-worn device can determine that a call request has been detected.

[0044] Step 102: In response to the detection of a call request, generate an adjustment instruction.

[0045] In one embodiment of this disclosure, when a call request is detected, it means that the user wishes to conduct a voice call in call mode. In this mode, the ear-worn audio device's pickup function needs to focus more on the wearer's voice. Therefore, in response to the detection of a call request, the ear-worn audio device can generate an adjustment command to adjust the angle of the microphone assembly to better pick up human voice.

[0046] Step 103: Based on the adjustment command, control the rotating part to rotate so that the path distance of the sound emitted by the wearer to the microphone assembly is minimized.

[0047] In the embodiments of this disclosure, the rotating part of the ear-worn audio device can rotate a certain angle under the drive of the driving mechanism. The microphone assembly disposed on the rotating part can adjust its angle as the rotating part rotates. After rotation, the path of the sound emitted by the wearer to the microphone assembly is minimized, which is beneficial for the microphone assembly to pick up the human voice. In other words, when using the ear-worn audio device for a call, the ear-worn audio device needs to pick up the user's voice more accurately. At this time, the ear-worn audio device can drive the driving mechanism to adjust the angle of the microphone assembly based on the adjustment command, so that the microphone assembly is in a second state, which can better pick up the wearer's voice information.

[0048] Understandably, the microphone assembly being in its second state corresponds to the shortest path distance for the sound emitted by the wearer to travel to the microphone assembly.

[0049] Therefore, according to embodiments of this disclosure, by detecting a call request, an adjustment command is generated in response to the detection of the call request, and the rotating part is controlled to rotate according to the adjustment command so that the path distance of the sound emitted by the wearer to the microphone assembly is minimized, thereby realizing intelligent angle adjustment of the microphone, improving the microphone's sound pickup effect in scenarios where a call is required, and enhancing the intelligence of the ear-worn audio device.

[0050] Figure 2 This is a flowchart illustrating a microphone angle adjustment method provided in an embodiment of the present disclosure, which is applied to an ear-worn audio device. Based on Figure 1 The illustrated embodiments, such as Figure 2 As shown, the method includes the following steps.

[0051] Step 201: Detect call requests.

[0052] In one embodiment of this disclosure, the principle of step 201 is the same as... Figure 1 The principle of step 101 shown is the same, and can be referred to. Figure 1 The implementation of the illustrated example will not be described in detail here.

[0053] Step 202: Determine the current position of the microphone assembly.

[0054] Step 203: Based on the current position, determine the rotation angle and / or rotation direction of the rotating part.

[0055] It should be understood that steps 202 and 203 can be optional steps. In other words, the ear-worn audio device can directly respond to the detection of a call request by generating an adjustment command to control the rotation of the rotating part, so that the microphone assembly is in the second state, so that the ear-worn audio device picks up the human voice in the shortest way. Alternatively, it can detect the current position of the microphone assembly before controlling the rotation of the rotating part to determine whether rotation is needed or in what direction and at what angle.

[0056] Furthermore, this embodiment does not limit the execution order of steps 201 and 202, 203. Step 201 can be executed before, between, or after steps 202, 203. That is, the execution order of detecting the call request and determining the position of the microphone component, and detecting the call request and determining the rotation angle and / or rotation direction of the rotating part, is not limited in this embodiment.

[0057] In embodiments of this disclosure, such as Figure 3 The diagram shows a schematic representation of the location of a microphone assembly. It can be understood that the microphone assembly includes a first microphone and a second microphone. Each microphone may have a receiving port; the first microphone has a first receiving port, and the second microphone has a second receiving port. The receiving ports may be strip-shaped or dot-shaped and are arranged on the housing of the microphone assembly. Figure 3 In (a), the line connecting the sound holes is horizontal. Figure 3 In (b), the line connecting the microphone holes forms a certain angle with the horizontal plane. The above schematic diagram is merely an example, intended only to illustrate the position of the microphone assembly, and does not constitute a limitation on the embodiments of this disclosure. Figure 3 (a) shows the microphone assembly in the first state, with the sound hole connection horizontal (the upright state after the user wears the audio device). At this time, the microphone assembly has a better sound pickup effect on ambient sound, which is convenient for realizing hearing aid function / active noise cancellation function. Figure 3 As shown in (b), the line connecting the microphone holes forms a certain angle with the horizontal plane (when the user is standing upright after wearing the audio device). Adjusting the angle can make the line connecting the microphone holes of the microphone assembly point towards the user's mouth, so that the path of the sound emitted by the wearer to the microphone assembly is the shortest, which is conducive to the microphone assembly picking up human voice.

[0058] It should be understood that, in order to ensure that the ear-worn audio device described in this embodiment is in a state of optimal performance when worn on the wearer's ear, Figure 3 The first state shown in (a) ensures that the device is in the first state when it is first worn in the ear by the shape and / or structural design of the ear-worn audio device and the initialization of the rotating part. For example, by setting a specific ear cap shape, a specific in-ear part shape, a handle, a pull cord and / or an antenna (for fully in-ear ear-worn audio devices), the specific shape settings ensure that the position of the audio device relative to the ear canal is fixed when the device is inserted into the ear; at the same time, when the ear-worn audio device is placed in the storage case (such as a charging case), when it is taken out of the storage case (such as a charging case), or when it is turned on, the microphone assembly will initialize and rotate to the specified position. At this time, when the user wears the hearing aid device into the ear, due to the aforementioned shape and / or structural design and the initialization of the microphone assembly, the microphone assembly is in the first state.

[0059] For example, in one embodiment of this disclosure, the ear-worn audio device is a hearing aid without a handle. When the user wears the hearing aid in their ear, the microphone assembly is in a first state due to the aforementioned shape and / or structural design. During use, the microphone position may deflect at any angle due to touch or other reasons. At this time, the current position of the microphone assembly can be identified, and the angle φ (0°≤φ≤π / 2) between the current position of the microphone assembly and the microphone assembly in the second state can be calculated. At this time, the microphone assembly can rotate by an angle φ along the first direction (the direction in which the microphone assembly needs to rotate from the current position to the second state by the required rotation angle φ) or along the second direction opposite to the first direction by the angle π-φ. After rotation, the microphone assembly can reach the preferred position corresponding to the call mode (that is, the path of the sound emitted by the wearer to the microphone assembly has not reached the shortest distance, that is, the microphone assembly is in the second state).

[0060] Of course, if no call demand is detected, even if the current location is not the optimal location (i.e., the path of the wearer's voice to the microphone component is not the shortest distance), the current position of the microphone component will remain unchanged or adjusted to the first state (e.g., ...). Figure 3 (as shown in (a)). Of course, in order to obtain good ambient sound reception and improve hearing aid performance, if no call demand is detected, the rotating part can be driven to rotate to adjust the microphone assembly to the first state.

[0061] The embodiments disclosed herein can effectively reduce device power consumption, reduce device actions, and simplify the triggering process of adjustment commands by detecting the position of the microphone component before making adjustments.

[0062] Step 204: In response to the detection of a call request, an adjustment instruction is generated, which includes a rotation angle and / or a rotation direction.

[0063] In one embodiment of this disclosure, in response to the detection of a call request, an adjustment command is generated based on step 203. In order to improve the battery life of the ear-worn audio device, the smaller angle between φ and π-φ is preferred as the rotation angle, and the corresponding rotation direction is selected accordingly.

[0064] Step 205: In response to the adjustment command, control the rotating part to rotate so that the path distance of the sound emitted by the wearer to the microphone assembly is minimized.

[0065] In the embodiments of this disclosure, the shortest path distance for the sound emitted by the wearer to be transmitted to the microphone assembly can be determined by the following steps: determining a two-dimensional projection surface, which is the plane where the wearer's ear helix is ​​located or a plane parallel to the wearer's side; when the projection of the wearer's mouth on the two-dimensional projection surface is located on the straight line connecting the projections of the first sound receiving hole and the second sound receiving hole on the two-dimensional projection surface, the shortest path distance for the sound emitted by the wearer to be transmitted to the microphone assembly is determined.

[0066] Specifically, this embodiment establishes a two-dimensional projection plane. This projection plane can be the plane where the helix of the ear-worn audio device is located, or it can be a plane parallel to the wearer's side. It is understood that the plane viewed from the side (i.e., the direction from which the wearer's ear is positioned when wearing the audio device) can be considered as this projection plane. Figure 4 As shown, an ear-worn audio device is inserted into the ear canal, and the ear-worn audio device and the wearer's mouth are projected onto the same two-dimensional projection plane. At this time, the wearer's mouth and the sound-receiving holes of the two microphones are on the same two-dimensional projection plane. When the projection point of the wearer's mouth is on the extension line of the line connecting the projection points of the two microphone sound-receiving holes (that is, the straight line connecting the projection points of the wearer's mouth and the projection points of the two microphone sound-receiving holes), the distance between the points is the shortest. That is, the path distance of the sound emitted by the wearer to the microphone assembly is the shortest, thereby improving the sound pickup effect of the microphone assembly on human voice.

[0067] In other words, the two microphone holes are considered as two points on the ear-worn audio device (for strip-shaped microphone holes, the midpoint of the strip-shaped microphone hole can be considered as the two points of the microphone hole), and the wearer's mouth is considered as a point. When viewed from the side (ear direction), the projections of the three points on the two-dimensional projection plane are on the same straight line. That is, the straight line connecting the two microphone holes intersects with the projection point formed by the user's mouth. In other words, by adjusting the angle of the microphone assembly to point towards the user's mouth, the path distance for the sound emitted by the wearer to reach the microphone assembly is the shortest, thereby achieving better voice pickup in call mode and making voice calls clearer.

[0068] In this embodiment of the disclosure, the following describes in detail, in conjunction with the hardware structure, the method for detecting the current position of the microphone component and the method for detecting whether it has been rotated to the desired position.

[0069] In one alternative embodiment of this disclosure, a Hall element can be provided in the ear-worn audio device to determine whether the current position of the microphone assembly is in a first state or a second state by detecting the Hall signal.

[0070] Specifically, by incorporating a Hall element in an ear-worn audio device, the position of the microphone assembly can be identified by detecting the magnetic field of a permanent magnet using the Hall element 10. The Hall element can be a Hall sensor, such as... Figure 5 , Figure 6 As shown, the rotating part is rotatably connected to the main body of the ear-worn audio device. The rotating part is the back cover of the main body. The microphone assembly is located in the rotating part. The Hall element is installed in either the rotating part or the main body of the ear-worn audio device. The other part is equipped with a magnetic component, which includes a first magnetic component 11 and a second magnetic component 12. The Hall element rotates relative to the first magnetic component 11 and the second magnetic component 12. The magnetic polarity of the surface of the first magnetic component 11 facing the Hall element is opposite to that of the surface of the second magnetic component 12 facing the Hall element. Preferably, the Hall element is located on the main body of the ear-worn audio device, and the magnetic component is located in the rotating part. After the wearer wears the device, the effective surface of the Hall element is parallel to the horizontal plane. After device initialization, the microphone assembly is in a first state, and the first magnetic component 11 is close to the Hall element, at which point a first magnetic signal is obtained. When it is necessary to collect the wearer's voice, the microphone assembly is controlled to rotate to a second state, at which point the second magnetic component 12 is close to the Hall element, at which point a second magnetic signal is obtained. This corresponds to the microphone assembly being in a suitable position for collecting human voice (i.e., the position where the path distance of the sound emitted by the wearer to the microphone assembly is the shortest). When the first magnetic signal or the second magnetic signal is detected, it indicates that the microphone assembly has rotated to the expected position, and the rotation of the rotating part stops. Preferably, the magnetic component is a permanent magnet. Therefore, embodiments of this disclosure can detect changes in the magnetic field caused by the magnetic component using a Hall element, thereby determining whether the current position of the microphone assembly is a horizontal position or a suitable position for capturing human voice.

[0071] It should be emphasized that the positions of the first magnetic component 11 and the second magnetic component 12 can be determined based on the angle that the microphone needs to rotate in the first and second states. The required rotation angle can be calculated through statistical methods, simulation, etc., and this application does not impose any limitations on it. The rotating part can be automatically adjusted by being driven to rotate forward and backward by a stepper motor, linear motor, etc., or the user can be prompted to manually rotate it to complete the adjustment.

[0072] In one alternative embodiment of this disclosure, a circuit conduction structure can be provided in the ear-worn audio device to determine the current position of the microphone assembly by detecting electrical signals.

[0073] Specifically, such as Figure 7 , 8As shown in Figure 9, the rotating part is rotatably connected to the main body of the ear-worn audio device. The rotating part is the back cover of the main body, and the microphone assembly is disposed on the rotating part. The rotating part is provided with a first contact 211 and a second contact 212. The main body of the ear-worn audio device is provided with a third contact 221 and a fourth contact 222. When the first contact 211 contacts the third contact 221, the first circuit is connected, generating a first electrical signal. When the second contact 212 contacts the fourth contact 222, the second circuit is connected, generating a second electrical signal. Preferably, the rotating part is provided with a protrusion 21, and the first contact 211 and the second contact 212 are disposed at both ends of the protrusion 21 along the rotation direction. The main body of the ear-worn audio device is provided with a limiting structure 22, which includes a first limiting point and a second limiting point. The protrusion rotates relative to the first limiting point and the second limiting point. The third contact 221 is disposed at the first limiting point, and the fourth contact 222 is disposed at the second limiting point. After the wearer puts on the device and the device initializes, the first contact 211 and the third contact 221 come into contact, the first circuit is turned on, and a first electrical signal is generated. When it is necessary to collect the wearer's voice, the microphone assembly is controlled to rotate to the second state. When the second contact 212 and the fourth contact 222 come into contact, the second circuit is turned on, and a second electrical signal is generated, corresponding to the microphone assembly being in a suitable position for collecting human voice (i.e., the position where the path distance for the sound emitted by the wearer to reach the microphone assembly is the shortest). When the first or second electrical signal is detected, it indicates that the microphone assembly has rotated to the expected position, and the rotation of the rotating part stops.

[0074] It is important to emphasize that the positions of the four contact points can be determined based on the required rotation angle of the microphone in its first and second states. The required rotation angle can be calculated using statistical or simulation methods, and this application does not impose any limitations on this. The rotating part can be automatically adjusted by being driven in forward and reverse rotation by a stepper motor, linear motor, etc., or the user can be prompted to manually rotate it for adjustment. It is understood that the electrical signal can be a voltage signal or a current signal, and the first and second electrical signals can be voltages or currents of different magnitudes or directions.

[0075] In one alternative embodiment of this disclosure, a double-layer flexible printed circuit (FPC) can be disposed in the ear-worn audio device to detect the position of the microphone assembly.

[0076] Specifically, the ear-worn audio device features a double-layer FPC, which can be strip-shaped or sheet-shaped. A rotating portion is rotatably connected to the main body of the ear-worn audio device, serving as the back cover of the main body. The microphone assembly is located on the rotating portion. One end of the double-layer FPC is connected to the main body of the ear-worn audio device, and the other end is connected to the rotating portion containing the microphone assembly. In this embodiment, the FPC is designed as a double layer, with copper-exposed windows on opposite surfaces. The outer FPC is slightly longer than the inner FPC. When the microphone assembly is in a horizontal position (e.g., as shown in the image), the microphone assembly is positioned horizontally. Figure 3 As shown in (a), due to the inconsistent lengths of the two parallel FPC layers, the outer FPC layer will not contact the inner FPC layer due to tension. When the microphone assembly rotates (e.g., as shown in (a)...), Figure 3 At the position shown in (b), the double-layer PFC will twist and entangle. At this time, the windowed parts of the outer FPC and the inner FPC will come into contact with each other, so the microphone position can be detected as non-horizontal.

[0077] In one alternative embodiment of this disclosure, a variable resistor component 30 may be provided in the ear-worn audio device to determine the current position of the microphone component by detecting the resistance value.

[0078] Specifically, such as Figure 10 As shown, the rotating part is rotatably connected to the main body of the ear-worn audio device. The rotating part is the back cover of the main body, and the microphone assembly is disposed in the rotating part. A variable resistor assembly 30 is arranged in the connection between the main body of the ear-worn audio device and the rotating part, for example, as shown in... Figure 11As shown, the resistor section 31 (or, the sliding rheostat contact groove) of the variable resistor component is disposed on either the main body or the rotating part of the ear-worn audio device, and a brush 32 is arranged on the other. When the rotating part rotates relative to the main body of the ear-worn audio device, the resistance connected to the circuit changes, and the position and rotation angle of the rotating part can be calculated accordingly. After the wearer puts on the device and the device is initialized, the microphone component is in the first state, and the resistance connected to the circuit is calibrated as the first resistance. When the wearer's voice is collected optimally, the microphone component is in the second state, and the resistance connected to the circuit is calibrated as the second resistance. When it is necessary to collect the wearer's voice, the resistance connected to the current circuit can be calculated as the third resistance. Based on the difference between the third resistance and the second resistance, the resistance value that needs to be adjusted can be calculated. Based on the resistance value and the characteristics of the variable resistor, the required rotation angle and direction can be calculated, and the microphone component can be controlled to rotate to the second state. In this embodiment, the current position of the microphone assembly can be calculated by identifying the resistance value, and the angle required for the rotating part to reach the first or second state from the current position can be calculated, thereby precisely controlling the rotation angle of the rotating part. This embodiment can identify any spatial position of the microphone, achieving a more precise identification and control effect. It is important to emphasize that, to prevent excessive rotation and damage to the electrical connection between the rotating part and the main body, limiting components can be set at both ends of the variable resistance assembly to restrict the rotation angle. The rotating part can be automatically adjusted by being driven to rotate forward and backward by a stepper motor, linear motor, etc., or the user can be prompted to manually rotate it to complete the adjustment.

[0079] In one alternative embodiment of this disclosure, a gravity sensor 40 may be provided in the ear-worn audio device to detect the current position of the microphone assembly.

[0080] Specifically, such as Figure 12 As shown, the rotating part is rotatably connected to the main body of the ear-worn audio device. The rotating part is the back cover of the main body, and the microphone assembly is located in the rotating part. The gravity sensor 40 can be positioned at any location within the rotating part. Based on the working principle of the gravity sensor, when the microphone rotates, the sensor can detect the rotation of the rotating part, thereby determining the current position of the microphone assembly. Specifically, after the wearer puts on the device and the device is initialized, the spatial position between the sensor and the main body of the device is determined and calibrated as the first position. When the optimal sound collection from the wearer is achieved, the microphone assembly is in the second state, and the spatial position between the microphone and the main body of the device is determined and calibrated as the second position. When it is necessary to collect the wearer's sound, the current spatial position between the microphone and the main body of the device is determined, thereby calculating the angle and direction of rotation that the rotating part needs to rotate.

[0081] It should be emphasized that, in order to prevent excessive rotation and damage to the electrical connection between the rotating part and the main body, a limiting component can be installed to restrict the rotation angle.

[0082] Therefore, the embodiments of this disclosure enhance the intelligence of the ear-worn audio device and expand its application scenarios in the sound pickup process by designing different structures to monitor the position of the microphone component and make subsequent adjustments.

[0083] It should be understood that, in the embodiments of this disclosure, the number of microphone components is not limited for both the detection of the microphone component's position and the subsequent adjustment of the microphone component's position via the rotating part. In other words, when there are two microphone components (e.g., in a separate in-ear headphone worn on both ears), the positions of the two microphone components can be detected separately, and the rotation of the two microphone components can be controlled separately.

[0084] In some alternative embodiments, such as Figure 1 In the illustrated embodiment, the microphone components of the ear-worn audio device can be a pair of devices. For example, the ear-worn audio device includes a first device and a second device, worn on the user's left and right ears respectively. The first device includes a first microphone component, and the second device includes a second microphone component.

[0085] In one specific embodiment, when performing position detection or control on the first and second microphone components respectively, by exchanging and sharing relevant data between the two components and through algorithmic recognition, it can be determined whether the change is due to a change in the posture of the human head or a rotation of only the microphone housing of the earphone. Therefore, the ear-worn audio device can adjust the algorithm accordingly to achieve better voice and ambient sound pickup.

[0086] Optionally, the functions of the first microphone and the second microphone can be interchanged. In this embodiment, the first and second microphones are merely examples to distinguish different components and do not constitute a limitation on the embodiments of this disclosure. The first microphone and the second microphone can communicate through communication technology to perform sound fusion and processing. In this embodiment, the communication method and / or sound fusion and processing method between the two are not limited.

[0087] As an optional embodiment, for ear-worn audio devices including a first device and a second device (i.e., a dual-microphone assembly), the rotation of each microphone assembly can be controlled independently. For example, the rotation of the first microphone assembly can be controlled to make the line connecting the first and second microphone holes horizontal, and the rotation of the second microphone assembly can be controlled to minimize the path distance for the wearer's sound to reach the second microphone assembly. Therefore, the first microphone assembly for picking up ambient sound can be rotated to a suitable position for collecting ambient sound, such as horizontal; the second microphone assembly for picking up the wearer's voice can be rotated to a suitable position for picking up human voice, such as a position that minimizes the path distance for the wearer's sound to reach the second microphone assembly, so that the ear-worn audio device can simultaneously pick up ambient sound and human voice. Of course, if it is detected that each microphone is already in a suitable position during the stage of detecting the current position of the microphone assembly, no adjustment is required. During a call, the microphone component, which picks up ambient sound, can employ ANC or ANR technology for active noise cancellation, thereby better suppressing environmental noise and making the call clearer. Similarly, for people with hearing loss, when making calls outdoors, the ambient sound picked up by the microphone component can be retained to improve the user's awareness of their surroundings and ensure their safety. Of course, the use of ambient sound can be adjusted according to needs, choosing between active noise cancellation or external awareness; this application does not impose any limitations, and the two examples above do not contradict each other.

[0088] For example, taking an ear-worn audio device as a hearing aid, when a call request is detected, in call mode, the first microphone component of one hearing aid (e.g., the left ear) can be kept in a horizontal position (i.e., the first state), while the second microphone component of the other hearing aid (e.g., the left ear), driven by adjustment commands and a driving mechanism, is adjusted to face the mouth (i.e., the second state), minimizing the path distance for the wearer's sound to reach the second microphone component. The horizontal microphone picks up ambient sound, while the microphone facing the mouth picks up speech. Through dual-earphone communication technology, the sound is fused and processed, resulting in clear speech through the second microphone component. Furthermore, the ambient sound picked up by the first microphone component can be processed to eliminate unnecessary environmental noise, thereby significantly improving the sound pickup effect of the hearing aid in call mode. By adjusting the angle of the dual microphones, the hearing aid can automatically sense changes in the relative spatial position of the microphones and automatically adjust the sound pickup algorithm to achieve the best user experience. The relevant sound pickup algorithms are not described in detail in this embodiment.

[0089] In one alternative embodiment of this disclosure, when the call ends, the drive mechanism can drive the rotating part to automatically adjust the microphone assembly to a first state (e.g., a horizontal position).

[0090] Therefore, automatic detection and adjustment of the microphone position can be achieved in this embodiment. The rotating part can be driven to rotate forward or backward by an internal linear motor, stepper motor, or other drive mechanism, which will not be described in detail here.

[0091] In one embodiment of this disclosure, taking an ear-worn audio device as an example of a hearing aid, the two microphone components collect sounds from different ranges. One is used to collect ambient sounds, which is a basic function of the hearing aid. The other microphone component is used to collect the user's voice, making the call pickup clearer. The two microphone components have different sound collection ranges. The information obtained by the ambient microphone component is uploaded to the other microphone component. The two microphone components simultaneously pick up ambient sounds and voice calls, which greatly improves the simultaneous recognition rate of ambient sounds and voice.

[0092] In one embodiment of this disclosure, the user can manually adjust the position of the microphone. For example, when the angle of the second microphone component is not pointing towards the mouth, the ear-worn audio device can issue an angle adjustment prompt, which can be an audio prompt, informing the user to manually rotate the microphone housing to adjust the microphone position. In this embodiment of the disclosure, the form of the angle adjustment prompt is not limited.

[0093] In one embodiment of this disclosure, when a call ends and no voice or call request is detected within a certain period of time, the rotating part is controlled to rotate so that the first microphone assembly and / or the second microphone assembly return to the first state, i.e., the horizontal state.

[0094] The predetermined time can be set by a timing device or by a program, and there is no limitation on this in the embodiments disclosed herein.

[0095] In the embodiments disclosed herein, a first microphone component picks up ambient sound horizontally, while a second microphone component rotates at a certain angle to pick up voice information. Through communication between the two components, better call noise reduction can be achieved. Simultaneously, during voice calls, ambient sound can still be aided, allowing users to perceive other environmental sounds in environments such as streets, reducing the danger caused by missing ambient sounds. After adjusting the angle of the dual microphones, the headset can automatically sense changes in the microphone's relative spatial position and automatically adjust the sound pickup algorithm to achieve the best user experience. The microphone angle adjustment can be automatic; the headset has an internal drive mechanism that automatically rotates the microphone panel during calls to achieve optimal sound pickup, and the internal algorithm also automatically switches. When the call ends, the drive mechanism automatically returns the microphone panel to a horizontal position. Based on the user's usage scenario, after picking up human voice and ambient sound, it automatically switches to external noise reduction mode or hearing aid mode.

[0096] Figure 13 An ear-worn audio device 1700 provided in this embodiment of the present disclosure includes: a main body 1710;

[0097] A rotating part 1720 is rotatably connected to the main body. The rotating part is the back cover of the main body 1710. A microphone assembly 1730 is provided on the rotating part. The microphone assembly 1730 includes a first microphone and a second microphone.

[0098] Drive mechanism 1740, drive mechanism 1740 is used to drive the rotating part to rotate based on adjustment command;

[0099] The processor 1750 is configured to perform the microphone angle adjustment method mentioned in any of the foregoing embodiments of this disclosure.

[0100] The principle in this embodiment is the same as that in the previous embodiments, and the relevant descriptions can be found in the previous embodiments, so they will not be repeated here. In summary, by detecting a call request, an adjustment command is generated in response to the detection of the call request. Based on the adjustment command, the rotating part is controlled to rotate so that the path distance of the sound emitted by the wearer to the microphone assembly is minimized, thereby realizing intelligent angle adjustment of the microphone. In scenarios where a call is required, the microphone's sound pickup effect is improved, enhancing the intelligence of the ear-worn audio device.

[0101] Corresponding to the methods provided in the above embodiments, this disclosure also provides an ear-worn audio device. Since the device provided in this disclosure corresponds to the methods provided in the foregoing embodiments, the implementation of the methods is also applicable to the device provided in this embodiment, and will not be described in detail in this embodiment.

[0102] Based on the embodiments shown above, this disclosure provides a schematic diagram of an earphone structure with a handle, specifically as follows: Figure 14 As shown.

[0103] In one embodiment of this disclosure, when the ear-worn audio device has a handle, a cover plate is provided on the main body outside the handle, and the microphone assembly is disposed on the cover plate. The cover plate is rotatably connected to the earphone body as a rotating part for adjusting the angle of the microphone assembly. In hearing aid or active noise cancellation scenarios, the microphone assembly needs to be kept horizontal with the space, that is, the spatial state of the microphone assembly for sound pickup is horizontal, which can obtain better hearing aid sound pickup effect.

[0104] During voice calls, it is necessary to more accurately pick up the sound emitted by the user's mouth. By rotating the cover, the angle of the microphone is adjusted so that the angle of the microphone assembly changes, and the extension line connecting the two sound holes of the microphone assembly intersects with the direction of the user's mouth. The angle of the microphone assembly used to pick up the user's voice is adjusted to the position where the distance from the wearer's voice to the microphone assembly is the shortest.

[0105] The methods and apparatus provided in the embodiments of this application have been described above. To implement the functions of the methods provided in the embodiments of this application, the electronic device may include a hardware structure and software modules, and may implement the above functions in the form of a hardware structure, software modules, or a hardware structure plus software modules. One of the above functions may be executed in the form of a hardware structure, software modules, or a hardware structure plus software modules.

[0106] Figure 15 This is a block diagram illustrating an electronic device 1900 for implementing the microphone angle adjustment method described above, according to an exemplary embodiment. For example, the electronic device 1900 may be a mobile phone, computer, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0107] Reference Figure 15 The electronic device 1900 may include one or more of the following components: a processing component 1902, a memory 1904, a power supply component 1906, an audio component 1910, an input / output (I / O) interface 1912, a sensor component 1914, and a communication component 1916.

[0108] Processing component 1902 typically controls the overall operation of electronic device 1900, such as operations associated with telephone calls and data communications. Processing component 1902 may include one or more processors 1920 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1902 may include one or more modules to facilitate interaction between processing component 1902 and other components.

[0109] Memory 1904 is configured to store various types of data to support the operation of electronic device 1900. Examples of this data include instructions for any application or method operating on electronic device 1900. Memory 1904 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 storage, flash memory, magnetic disk, or optical disk.

[0110] Power supply component 1906 provides power to various components of electronic device 1900. Power supply component 1906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1900.

[0111] Audio component 1910 is configured to output and / or input audio signals. For example, audio component 1910 includes one or more microphones (MICs) configured to receive external audio signals when electronic device 1900 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1904 or transmitted via communication component 1916. In some embodiments, audio component 1910 also includes a speaker for outputting audio signals.

[0112] I / O interface 1912 provides an interface between processing component 1902 and peripheral interface modules, such as buttons. Sensor component 1914 includes one or more sensors for providing status assessments of various aspects of electronic device 1900. For example, sensor component 1914 can detect the on / off state of electronic device 1900, the relative positioning of components, changes in position of electronic device 1900 or its components, the presence or absence of user contact with electronic device 1900, orientation or acceleration / deceleration of electronic device 1900, and temperature changes of electronic device 1900. Sensor component 1914 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. In some embodiments, sensor component 1914 may be a gravity sensor, accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor, etc., and is not limited thereto in this disclosure.

[0113] Communication component 1916 is configured to facilitate wired or wireless communication between electronic device 1900 and other devices. Electronic device 1900 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, 4G LTE, 5G NR (NewRadio), or combinations thereof. In one exemplary embodiment, communication component 1916 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel.

[0114] In an exemplary embodiment, the electronic device 1900 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0115] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1904 including instructions, which can be executed by a processor 1920 of an electronic device 1900 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0116] Embodiments of this disclosure also provide a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause a computer to perform the microphone angle adjustment method described in the above embodiments of this disclosure.

[0117] Embodiments of this disclosure also provide a computer program product, including a computer program that is executed by a processor using the microphone angle adjustment method described in the above embodiments of this disclosure.

[0118] Embodiments of this disclosure also propose a chip including one or more interface circuits and one or more processors; the interface circuits are used to receive signals from the memory of an electronic device and send signals to the processors, the signals including computer instructions stored in the memory, which, when executed by the processor, cause the electronic device to perform the microphone angle adjustment method described in the above embodiments of this disclosure.

[0119] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this disclosure as detailed in the appended claims.

[0120] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0121] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0122] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processing module, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (control method), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic device, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which programs can be printed, because programs can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0123] It should be understood that various parts of the embodiments of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0124] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0125] Furthermore, the functional units in the various embodiments of the present invention can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc.

[0126] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A microphone angle adjustment method, characterized in that, The method is applied to an ear-worn audio device, the ear-worn audio device including a main body and a rotating part rotatably connected to the main body, the rotating part being provided with a microphone assembly, the rotating part being located on the rear cover of the main body, the method comprising: Detect call requests from terminal devices that are communicatively connected to the ear-worn audio device; In response to detecting the call request, an adjustment command is generated; Based on the adjustment command, the rotating part is controlled to rotate so that the microphone assembly is adjusted to a second state. In the second state, when the projection of the wearer's mouth on the two-dimensional projection surface is located on the straight line connecting the projections of the first and second sound-receiving holes of the microphone assembly on the two-dimensional projection surface, the microphone assembly is used to collect the sound emitted by the wearer. In response to the end of the call, the rotating part is controlled to rotate again to adjust the microphone assembly to a first state, in which the microphone assembly's sound hole connection remains horizontal and is used to collect ambient sound.

2. The method according to claim 1, characterized in that, The method further includes: Determine the current position of the microphone assembly; Based on the current position, calculate the rotation angle and / or rotation direction of the rotating part; The rotating part is controlled to rotate based on the rotation angle and / or rotation direction.

3. The method according to any one of claims 1 to 2, characterized in that, The microphone assembly includes a first microphone and a second microphone. The first microphone has a first microphone aperture, and the second microphone has a second microphone aperture. The step of controlling the rotating part to rotate based on the adjustment command, so that the microphone assembly is adjusted to a second state, includes: A two-dimensional projection plane is defined, wherein the two-dimensional projection plane is the plane where the wearer's auricle is located or a plane parallel to the wearer's side; When the projection of the wearer's mouth onto the two-dimensional projection surface lies on the straight line connecting the projections of the first and second microphone holes onto the two-dimensional projection surface, the microphone assembly is determined to be adjusted to the second state.

4. The method according to any one of claims 1 to 2, characterized in that, The ear-worn audio device includes a first device and a second device. The first device includes a first microphone assembly, and the second device includes a second microphone assembly. The first microphone assembly has a first microphone hole, and the second microphone assembly has a second microphone hole. The step of controlling the rotating part to rotate based on the adjustment command to adjust the microphone assembly to the second state includes: The rotating part of the first device is controlled to rotate so that the first microphone hole of the first microphone assembly remains horizontal, the first microphone assembly being used to collect ambient sound. The rotating part of the second device is also controlled to rotate so that the second microphone hole of the second microphone assembly faces the mouth of the wearer, the second microphone assembly being used to collect the voice of the wearer.

5. An ear-worn audio device, characterized in that, include: main body; The back cover has a rotating part that is rotatably connected to the main body, wherein a microphone assembly is provided on the rotating part; A drive mechanism is used to drive the rotating part to rotate based on an adjustment command; A processor is configured to generate the adjustment command, which instructs the microphone assembly to be adjusted to a first state or a second state, wherein, in the first state, at least one microphone hole of the microphone assembly is kept in a horizontal position and is used to collect ambient sound, and in the second state, at least one microphone hole of the microphone assembly is directed toward the wearer's mouth and is used to collect the sound emitted by the wearer.

6. The device according to claim 5, characterized in that, Also includes: A Hall element is mounted on either the rotating part or the main body. The other of the rotating part and the main body is equipped with a magnetic element, which includes a first magnetic element and a second magnetic element. The Hall element rotates relative to the first magnetic element and the second magnetic element. The magnetic polarity of the surface of the first magnetic element opposite to one end of the Hall element is opposite to the magnetic polarity of the surface of the second magnetic element opposite to one end of the Hall element. When the microphone assembly is in the first state, the first magnetic element is close to the Hall element; when the microphone assembly is in the second state, the second magnetic element is close to the Hall element.

7. The device according to claim 5, characterized in that, The rotating part is provided with a first contact and a second contact, and the main body is provided with a third contact and a fourth contact. When the microphone assembly is in the first state, when the first contact and the third contact are in contact, the first circuit is turned on and a first electrical signal is generated. When the microphone assembly is in the second state, when the second contact and the fourth contact are in contact, the second circuit is turned on and a second electrical signal is generated.

8. The device according to claim 5, characterized in that, A variable resistance assembly is provided at the connection between the main body and the rotating part. The resistor part of the variable resistance assembly is disposed on either the main body or the rotating part. A brush is arranged on the other of the main body and the rotating part. When the rotating part rotates relative to the main body, the resistance value of the circuit changes.

9. The device according to claim 5, characterized in that, It also includes a gravity sensor, which is disposed on the rotating part and is used to detect the rotation angle of the rotating part.

10. The device according to any one of claims 5 to 9, characterized in that, The ear-worn audio device is a hearing aid; and / or... The rotating part is the rear cover of the main body.

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