CN114866904B - Rotation control mechanism, method and device for microphone orientation and head-mounted display equipment - Google Patents

Rotation control mechanism, method and device for microphone orientation and head-mounted display equipment Download PDF

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Publication number
CN114866904B
CN114866904B CN202210468230.5A CN202210468230A CN114866904B CN 114866904 B CN114866904 B CN 114866904B CN 202210468230 A CN202210468230 A CN 202210468230A CN 114866904 B CN114866904 B CN 114866904B
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Prior art keywords
rotation
wind noise
microphone
rotation angle
head
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CN114866904A (en
Inventor
黄若舟
安康
吴劼
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Goertek Inc
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Goertek Inc
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Priority to CN202210468230.5A priority Critical patent/CN114866904B/en
Priority to PCT/CN2022/103930 priority patent/WO2023206811A1/en
Publication of CN114866904A publication Critical patent/CN114866904A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/326—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for microphones
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B2027/0178—Eyeglass type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B2027/0192—Supplementary details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/07—Mechanical or electrical reduction of wind noise generated by wind passing a microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

Abstract

The invention discloses a rotation control mechanism, a method and a device for microphone orientation and a head-mounted display device, which are applied to the technical field of head-mounted display, wherein the component is applied to the head-mounted display device and comprises the following components: a rotation device and a rotation control device; wherein the rotating means is disposed in a recess on a target surface of a housing of the head-mounted display device; the rotating device arranged in the groove at least partially protrudes out of the target surface, and a pickup hole is formed in the protruding portion of the rotating device protruding out of the target surface and is used for being connected to a pickup port of a microphone of the head-mounted display device; according to the invention, the rotation control device is used for controlling the rotation of the rotation device so as to rotationally adjust the direction of the pickup hole on the protruding part of the rotation device, and the rotational adjustment of the pickup direction of the microphone is realized, so that the pickup direction of the microphone can be rotationally adjusted in the use process of the head-mounted display device, the wind noise picked up by the microphone is reduced, more human voice is picked up, and the use experience of the head-mounted display device is improved.

Description

Rotation control mechanism, method and device for microphone orientation and head-mounted display equipment
Technical Field
The present invention relates to the field of head-mounted display technologies, and in particular, to a rotation control mechanism, a rotation control method, a rotation control device, and a head-mounted display device for a microphone.
Background
With the development of modern society technologies, head-mounted display devices such as VR (Virtual Reality) devices, AR (Augmented Reality) devices, and MR (Mix Reality) devices are increasingly used. Currently, since head-mounted display devices such as AR devices (e.g., AR glasses) and MR devices are often worn outdoors by users, outdoor environmental conditions may be more severe than indoor conditions, and the noise of the wind is a common environmental condition in most outdoors.
When wind blows to a microphone of the head-mounted display device, obvious wind blowing sound, namely wind noise, is formed at a pickup port of the microphone; wind noise is an important factor affecting the conversation quality, and the voice of a person speaking is covered by leeward noise.
Therefore, how to reduce wind noise picked up by the microphone in the use process of the head-mounted display device, so as to pick up more human voice, improve the conversation quality and the use experience of the head-mounted display device is a problem which needs to be solved rapidly nowadays.
Disclosure of Invention
The invention aims to provide a rotation control mechanism, a rotation control method, a rotation control device and a rotation control device for the direction of a microphone, so that the pickup direction of the microphone is adjusted through rotation in the use process of the head-mounted display device, the wind noise picked up by the microphone is reduced, and the conversation quality and the use experience of the head-mounted display device are improved.
In order to solve the above technical problem, the present invention provides a rotation control mechanism for a microphone direction, which is applied to a head-mounted display device, and includes: a rotation device and a rotation control device;
wherein the rotating means is disposed in a recess on a target surface of a housing of the head-mounted display device; the rotating device arranged in the groove at least partially protrudes out of the target surface, and a pickup hole is arranged on the protruding part of the rotating device protruding out of the target surface and is used for being connected to a pickup port of a microphone of the head-mounted display device; the rotation control device is used for controlling the rotation device to correspondingly rotate according to a control signal of a processor of the head-mounted display device so as to rotate the direction of the pick-up hole on the protruding portion.
Optionally, the rotation device is specifically configured to rotate along a rotation axis according to control of the rotation control device; wherein the rotation axis is perpendicular to the target surface.
Optionally, the pick-up hole is disposed at a side of the protruding portion at an opening of the protruding portion.
Optionally, when the head-mounted display device is a glasses device, the rotating device is disposed on a housing of a temple member of the glasses device, and the target surface is an outward surface on the housing of the temple member.
The invention also provides a rotation control method of the microphone orientation, which is applied to the head-mounted display device provided with the rotation control mechanism of the microphone orientation, and comprises the following steps:
acquiring wind noise information acquired by a microphone in the head-mounted display device; the pick-up port of the microphone is connected with the pick-up hole on the rotating device;
judging whether the wind noise information is larger than a wind noise threshold value or not;
if yes, controlling the rotating device to rotate to a target rotation angle; the target rotation angle comprises a preset rotation angle, wherein wind noise information acquired by the microphone is smaller than the wind noise threshold value.
Optionally, the controlling the rotation device to rotate to a target rotation angle includes:
controlling the rotating device to rotate to each preset rotating angle, and determining the target rotating angle according to wind noise information collected by the microphone at each preset rotating angle; the target rotation angle further comprises lee rotation angles when all wind noise information corresponding to the preset rotation angles is larger than a wind noise threshold value, and the wind noise information corresponding to the lee rotation angles is smaller than the wind noise information corresponding to two adjacent preset rotation angles respectively;
and rotating the rotating device to the target rotation angle.
Optionally, the determining the target rotation angle according to wind noise information collected by the microphone at each preset rotation angle includes:
controlling the rotating device to rotate clockwise or anticlockwise to the next preset rotation angle;
taking the next preset rotation angle as the current preset rotation angle, and judging whether wind noise information of the microphone at the current preset rotation angle is larger than a wind noise threshold value or not;
if the wind noise threshold value is not greater than the wind noise threshold value, taking the current preset rotation angle as the target rotation angle;
if the wind noise is larger than the wind noise threshold value, judging whether all the preset rotation angles are rotated;
if not rotating all the preset rotation angles, executing the step of controlling the rotating device to rotate clockwise or anticlockwise to the next preset rotation angle;
if all the preset rotation angles are rotated, detecting the leeward rotation angle according to wind noise information corresponding to all the preset rotation angles, and taking the leeward rotation angle as the target rotation angle.
Optionally, after the determining whether the wind noise information is greater than the wind noise threshold, the method further includes:
if the wind noise information is not greater than the wind noise threshold value, judging whether the wind noise information is smaller than a no-wind threshold value or not; wherein the no wind threshold is less than the wind noise threshold;
if the wind-free threshold value is smaller than the wind-free threshold value, controlling the rotating device to rotate to an optimal rotation angle; wherein, when the rotation device rotates to the optimal rotation angle, the pick-up hole on the rotation device faces to the mouth area of the wearer of the head-mounted display device.
The invention also provides a rotation control device of microphone orientation, which is applied to a head-mounted display device provided with the rotation control mechanism of microphone orientation, and comprises:
the wind noise acquisition module is used for acquiring wind noise information acquired by a microphone in the head-mounted display device; the pick-up port of the microphone is connected with the pick-up hole on the rotating device;
the wind noise judging module is used for judging whether the wind noise information is larger than a wind noise threshold value or not;
the rotation control module is used for controlling the rotation device to rotate to a target rotation angle if the wind noise threshold value is larger than the wind noise threshold value; the target rotation angle comprises a preset rotation angle, wherein wind noise information acquired by the microphone is smaller than the wind noise threshold value.
In addition, the invention also provides a head-mounted display device, which comprises:
a rotation control mechanism for microphone orientation as described above;
a memory for storing a computer program;
and a processor for implementing the steps of the microphone orientation rotation control method when executing the computer program.
The invention provides a rotation control mechanism of microphone orientation, which is applied to head-mounted display equipment and comprises: a rotation device and a rotation control device; wherein the rotating means is disposed in a recess on a target surface of a housing of the head-mounted display device; the rotating device arranged in the groove at least partially protrudes out of the target surface, and a pickup hole is formed in the protruding portion of the rotating device protruding out of the target surface and is used for being connected to a pickup port of a microphone of the head-mounted display device; the rotation control device is used for controlling the rotation device to correspondingly rotate according to a control signal of a processor of the head-mounted display device so as to rotate the direction of the pick-up hole on the protruding part;
therefore, the invention uses the rotation control device to control the rotation of the rotation device so as to rotationally adjust the direction of the pickup hole on the protruding part of the rotation device, thereby realizing the rotation adjustment of the pickup direction of the microphone in the head-mounted display device, reducing the wind noise picked up by the microphone by rotationally adjusting the pickup direction of the microphone in the using process of the head-mounted display device, further picking up more human voice, and improving the conversation quality and the using experience of the head-mounted display device. In addition, the invention also provides a method and a device for controlling the rotation of the microphone orientation and a head-mounted display device, which also have the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a rotation control mechanism for microphone orientation according to an embodiment of the present invention;
fig. 2 is a schematic installation diagram of another microphone-oriented rotation control mechanism according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a rotating device of another microphone-oriented rotation control mechanism according to an embodiment of the present invention;
fig. 4 is a schematic rotation diagram of a rotation device of a rotation control mechanism for a microphone according to another embodiment of the present invention;
fig. 5 is a flowchart of a method for controlling rotation of a microphone according to an embodiment of the present invention;
fig. 6 is a flowchart of another method for controlling rotation of a microphone according to an embodiment of the present invention;
fig. 7 is a block diagram of a rotation control device for microphone orientation according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a block diagram of a rotation control mechanism for a microphone according to an embodiment of the invention. The component applied to the head-mounted display device can comprise: a rotation device 10 and a rotation control device 20;
wherein the rotation device 10 is arranged in a groove on the target surface of the housing of the head-mounted display device; the rotating device 10 placed in the groove protrudes at least partially from the target surface, and a sound pickup hole is provided on the protruding portion of the rotating device 10 protruding from the target surface for connection to a sound pickup port of a microphone of the head-mounted display apparatus; the rotation control device 20 is used for controlling the rotation device 10 to correspondingly rotate according to a control signal of a processor of the head-mounted display device so as to rotate the direction of the pick-up hole on the protruding portion.
It is to be understood that the rotation device 10 in the present embodiment may be a device that is mounted at a recess on the target surface of the housing of the head-mounted display apparatus and is capable of being controlled to rotate by the rotation control device 20; when the rotating device 10 is installed in the groove (such as the groove of the upper shell of the glasses leg in fig. 2) on the target surface, all or part of the rotating device protrudes out of the target surface; and a pickup hole may be provided on a portion of the rotation device 10 protruding from the target surface (i.e., protruding portion), i.e., an opening of a first end of the pickup hole may be provided on the protruding portion, and an opening of a second end may be connected to a pickup port of a microphone of the head-mounted display device, as shown in fig. 3, the pickup hole may be an L-shaped pickup hole; so that the microphone can pick up sound transmitted from the sound pick-up hole, i.e., the sound pick-up direction of the microphone can be the direction of the sound pick-up hole on the protruding portion.
That is, in the present embodiment, the rotation device 10 can rotate the direction of the sound pickup hole on the protruding portion in the process of being controlled to rotate by the rotation control device 20, realizing the rotation of the sound pickup direction of the microphone. Correspondingly, for the shape and structure of the rotating device 10 in this embodiment, that is, the specific rotation mode of the rotating device 10 may be set by a designer according to the practical situation and the user requirement, for example, the rotating device 10 may rotate along a rotation axis (e.g., rotate clockwise or rotate counterclockwise) according to the control of the rotation control device 20, so that the pick-up hole may rotate along the rotation axis, thereby rotationally adjusting the orientation of the pick-up hole on the protruding portion; for example, the rotation axis may be perpendicular to the target surface of the case of the head-mounted display device in which the rotation device 10 is located, and the pick-up hole opening at the protruding portion may be provided on a side of the protruding portion, that is, on a side of the protruding portion not perpendicular to the rotation axis, so that when the rotation device 10 rotates along the rotation axis, the pick-up hole opening at the side of the protruding portion may be rotated 360 ° about the center of the rotation axis; as shown in fig. 3 and 4, the protruding portion may be specifically a cylinder, and the pick-up hole may be provided at a side surface (i.e., a side curved surface) of the protruding portion at an opening of the protruding portion such that the pick-up hole may be oriented to rotate 360 ° along the rotation axis. The rotation device 10 may also be rotated along different rotation axes according to the control of the rotation control device 20. The present embodiment does not impose any limitation as long as the direction of the sound pickup hole on the protruding portion can be changed when the rotary device 10 is rotated.
Specifically, the rotation control device 20 in this embodiment may be a device that adjusts the rotation of the rotation device 10 according to the control of the processor of the head-mounted display device, that is, the rotation control device 20 may control the rotation device 10 to rotate correspondingly according to the control signal of the processor of the head-mounted display device, so as to rotate the direction of the pick-up hole on the protruding portion, thereby realizing the rotation of the pick-up direction of the microphone. As for the specific structural type of the rotation control device 20 in the present embodiment, it may be set by a designer according to the practical situation and the user's requirement, for example, the rotation control device 20 may include a motor, so long as it is ensured that the rotation control device 20 can control the rotation of the rotation device 10, which is not limited in any way in the present embodiment.
It should be noted that, for the specific setting position of the rotating device 10 in this embodiment, the designer may set the setting according to the practical scenario and the user requirement, for example, the setting may be performed according to the specific type of the head-mounted display device, for example, when the head-mounted display device is a glasses device (such as AR glasses), the rotating device 10 may be disposed on a housing of a temple component of the glasses device, and the target surface is an outward surface on the housing of the temple component, that is, an opposite surface of the inward surface contacted by the temple component and the user when the user wears the glasses device, such as a plane of an upper shell of the glasses temple in fig. 2. The rotation means 10 can also be provided on the housing of the frame part of the eyeglass device, with the target surface being the outward facing surface on the housing of the temple part.
In this embodiment, the rotation control device 20 is used to control the rotation of the rotation device 10 to rotationally adjust the direction of the pickup hole on the protruding portion of the rotation device 10, so as to implement the rotational adjustment of the pickup direction of the microphone in the head-mounted display device, thereby reducing wind noise picked up by the microphone by rotationally adjusting the pickup direction of the microphone during the use of the head-mounted display device, further picking up more human voice, and improving the conversation quality and the use experience of the head-mounted display device.
Corresponding to the above component embodiments, the embodiments of the present invention further provide a method for controlling rotation of a microphone orientation, where a method for controlling rotation of a microphone orientation described below and a mechanism for controlling rotation of a microphone orientation described above may be referred to correspondingly with each other.
Referring to fig. 5, fig. 5 is a flowchart of a method for controlling rotation of a microphone according to an embodiment of the invention. The method is applied to the head-mounted display device provided with the rotation control mechanism of the microphone orientation provided by the embodiment, and can comprise the following steps:
step 101: acquiring wind noise information acquired by a microphone in the head-mounted display device; wherein, the pickup mouth of microphone is connected with the pickup hole on the rotatory device.
It can be understood that the processor of the head-mounted display device in this step may collect the wind noise information by using the microphone that the pickup port in the head-mounted display device is connected to the pickup hole on the rotating device in the rotation control mechanism provided in the above embodiment, so as to control the rotation of the rotating device to adjust the pickup direction of the microphone according to the wind noise information collected by the microphone.
Specifically, for the specific content of the wind noise information acquired by the microphone and acquired by the processor in the step, the specific content can be set by a designer according to a practical scene and user requirements, for example, the processor can directly take a noise signal in a sound signal acquired by the microphone as the wind noise information; the noise signal can also be processed to obtain wind noise information in the noise signal. The present embodiment does not impose any limitation on this.
Correspondingly, the specific manner of acquiring the wind noise information acquired by the microphone in the head-mounted display device by the processor in this step may be set by a designer, for example, may be implemented in the same manner or in a similar manner to the wind noise detection method in the prior art, which is not limited in this embodiment.
It should be noted that, in this step, the processor may obtain wind noise information of the microphone at the current rotation angle; the current rotation angle may be a current rotation angle of the rotating device; for example, in this step, when the head-mounted display device is turned on, the rotating device may rotate to a preset optimal rotation angle, so as to obtain wind noise information of the microphone at the current rotation angle; when the rotating device rotates to the optimal rotation angle, the pick-up hole on the rotating device faces to the mouth area of the wearer of the head-mounted display device, so that the microphone can pick up the voice sent by the wearer conveniently. In this step, the processor may also acquire wind noise information of the microphone at the current rotation angle after the rotation device may rotate to the optimal rotation angle or the target rotation angle during use of the head-mounted display device.
Correspondingly, in the step, the processor can acquire wind noise information of the microphone at the current rotation angle according to a preset time interval.
Step 102: judging whether the wind noise information is larger than a wind noise threshold value or not; if yes, go to step 103.
It can be understood that, in this step, the processor may determine whether to control the rotation of the rotating device through comparing the wind noise information with the wind noise threshold value, so as to adjust the pick-up direction of the microphone, thereby determining that the external environment is in a windy state when the wind noise information is greater than the wind noise threshold value, and entering step 103 to control the rotation of the rotating device, so as to adjust the pick-up direction of the microphone, so as to reduce the wind noise that the microphone will collect and pick up.
Correspondingly, for the case that the wind noise information in the step is not greater than (i.e. less than or equal to) the wind noise threshold, the wind noise information can be set by a designer according to a practical scene and user requirements, for example, when the wind noise information is not greater than the wind noise threshold, the processor can directly end the flow or return to step 101, and continue waiting for obtaining the next wind noise information. The processor can also judge whether the wind noise information is smaller than the no-wind threshold value or not when the wind noise information is not larger than the wind noise threshold value; if the wind-free threshold value is smaller than the wind-free threshold value, controlling the rotating device to rotate to an optimal rotation angle; if not, ending the flow or returning to the step 101; wherein the no wind threshold may be less than the wind noise threshold; when the rotating device rotates to the optimal rotation angle, the pick-up hole on the rotating device faces the mouth area of the wearer of the head-mounted display device.
That is, in this step, when the wind noise information is not greater than the wind noise threshold and the rotating device is not rotated to the optimal rotation angle (the optimal position shown in fig. 6), the processor may determine whether the wind noise information is less than the no-wind threshold, thereby determining that the external environment is in a no-wind state when the wind noise information is less than the no-wind threshold, and controlling the rotating device to rotate to the optimal rotation angle, so as to facilitate pickup of the voice emitted by the microphone to the wearer.
Specifically, for the specific numerical settings of the wind noise threshold and the no-wind threshold, the designer may set the specific numerical settings according to the practical scenario and the user requirement, for example, the wind noise threshold may be 75db as shown in fig. 6, and the no-wind threshold may be 60db as shown in fig. 6, which is not limited in this embodiment.
Likewise, for the setting of the specific angle value of the above-mentioned optimum rotation angle, it may be set by the designer himself, for example, when the rotation means are provided on the housing of the temple piece in the position shown in fig. 4, the optimum rotation angle may be 150 °, i.e. the orientation of the sound pick-up aperture may be 150 ° counterclockwise, to be oriented towards the mouth region of the wearer of the spectacle device, i.e. the head-mounted display device.
Step 103: controlling the rotating device to rotate to a target rotation angle; the target rotation angle comprises a preset rotation angle, wherein wind noise information acquired by the microphone is smaller than a wind noise threshold value.
It can be understood that when the wind noise information is greater than the wind noise threshold, the processor in this step can control the rotation device to rotate to the target rotation angle by outputting a corresponding control signal to the rotation control device in the rotation control mechanism towards which the microphone faces, so as to reduce the wind noise that the microphone can collect and pick up.
Specifically, for the specific mode that the processor controls the rotating device to rotate to the target rotation angle in the step, namely, the specific selection of the target rotation angle is determined, the rotating device can be automatically set by a designer according to a practical scene and user requirements, if the target rotation angle comprises a preset rotation angle, in which the wind noise information collected by the microphone is smaller than a wind noise threshold value, the processor can control the rotating device to sequentially rotate to each preset rotation angle and control the microphone to collect wind noise information when rotating to the preset rotation angle until the wind noise information collected by the microphone is smaller than the preset rotation angle of the wind noise threshold value, and the rotating device is stopped at the preset rotation angle (namely, the target rotation angle). Under the condition that wind noise information corresponding to all preset rotation angles is larger than a leeward rotation angle (such as leeward position in fig. 6), the processor can control the rotation device to rotate to each preset rotation angle, and determine the target rotation angle according to wind noise information collected by the microphone at each preset rotation angle; rotating the rotating device to a target rotation angle; the wind noise information corresponding to the lee rotation angle is smaller than the wind noise information corresponding to two adjacent preset rotation angles respectively, if the wind noise information of the first preset rotation angle and the wind noise information of the third preset rotation angle are larger than the second preset rotation angle when the rotation device rotates to the first preset rotation angle, and the second preset rotation angle in the first preset rotation angle, the second preset rotation angle and the third preset rotation angle which rotate clockwise or anticlockwise in sequence can be the lee rotation angle; for example, when the preset rotation angle is a rotation angle set by using a reference every 30 degrees as shown in fig. 4, the microphone collects 80dB of wind noise information when the rotation device rotates to 60 degrees, 75dB is 90 degrees, and 80dB is 120 degrees, and the preset rotation angle of 90 degrees is a leeward rotation angle.
For example, the processor may control the rotation device to rotate sequentially to each preset rotation angle, and control the microphone to collect wind noise information when rotating to the preset rotation angle, until the rotation device is stopped at the preset rotation angle (i.e., the target rotation angle) when the wind noise information collected by the microphone rotates to the preset rotation angle less than the wind noise threshold value without rotating once for all the preset rotation angles, or the rotation device is rotated to the lee rotation angle after rotating once for all the preset rotation angles (e.g., rotating 360 °).
Specifically, for the above processor to control the rotation device to rotate to each preset rotation angle, and according to wind noise information collected by the microphone at each preset rotation angle, a specific mode of determining the target rotation angle can be set by a designer, for example, the processor can control the rotation device to rotate clockwise or anticlockwise to the next preset rotation angle; taking the next preset rotation angle as the current preset rotation angle, and judging whether the wind noise information of the microphone at the current preset rotation angle is larger than a wind noise threshold value or not; if the current preset rotation angle is not larger than the wind noise threshold value, taking the current preset rotation angle as a target rotation angle; if the wind noise is larger than the wind noise threshold value, judging whether all preset rotation angles are rotated; if the rotating device does not rotate by all the preset rotating angles, returning to execute the step of controlling the rotating device to rotate clockwise or anticlockwise to the next preset rotating angle, and continuously detecting wind noise information of the next preset rotating angle; if all the preset rotation angles are rotated, detecting the leeward rotation angle according to wind noise information corresponding to all the preset rotation angles, and taking the leeward rotation angle as a target rotation angle.
Correspondingly, as shown in fig. 6, if the target rotation angle finally rotated in this step is a preset rotation angle where the wind noise information collected by the microphone is smaller than the wind noise threshold, the process may return to step 101, where the wind noise information of the microphone at the current rotation angle is obtained at preset time intervals, so that when the wind noise becomes larger, that is, greater than 75db (that is, the wind noise threshold), the rotation device (such as the rotation device and the rotation mechanism in fig. 6) is controlled to rotate again; when the wind noise becomes small, i.e., less than 60db (i.e., no wind threshold), the rotation device is controlled to rotate to an optimal position (i.e., an optimal rotation angle). As shown in fig. 6, if the target rotation angle finally rotated in this step is the leeward rotation angle, after waiting for a preset period of time (for example, one minute), the process may return to step 101 or step 103, and the rotation of the rotating device may be controlled again.
Specifically, for the specific angle setting of the preset rotation angle, the designer can set the specific angle by himself according to the practical scenario and the user requirement, because the larger the number of the preset rotation angles is, the larger the operation amount required by the processor is, in order to reduce the operation amount on the basis of guaranteeing the wind noise avoidance effect, as shown in fig. 4, the preset rotation angle can be set with 30 degrees as a reference, and as shown in fig. 4, the preset rotation angle can be 12 rotation angles. The present embodiment does not impose any limitation on this.
In the embodiment of the invention, the rotation control device is used for controlling the rotation of the rotation device so as to rotationally adjust the direction of the pick-up hole on the convex part of the rotation device, thereby realizing the rotation adjustment of the pick-up direction of the microphone in the head-mounted display device; through rotating target rotation angle at control rotary device, can rotate the pickup orientation of adjustment microphone, reduce the wind noise that the microphone picked up, and then pick up more voice, improve conversation quality and wear display device's use experience.
Corresponding to the above method embodiments, the embodiments of the present invention further provide a microphone-oriented rotation control device, where a microphone-oriented rotation control device described below and a microphone-oriented rotation control method described above may be referred to correspondingly with each other.
Referring to fig. 7, fig. 7 is a block diagram of a rotation control device for microphone orientation according to an embodiment of the invention. The apparatus is applied to a head-mounted display device provided with a rotation control mechanism of a microphone orientation as provided in the above embodiment, and may include:
the wind noise acquisition module 100 is used for acquiring wind noise information acquired by a microphone in the head-mounted display device; the pick-up port of the microphone is connected with the pick-up hole on the rotating device;
the wind noise judging module 200 is configured to judge whether the wind noise information is greater than a wind noise threshold;
the rotation control module 300 is configured to control the rotation device to rotate to a target rotation angle if the rotation control module is greater than the wind noise threshold; the target rotation angle comprises a preset rotation angle, wherein wind noise information acquired by the microphone is smaller than a wind noise threshold value.
Alternatively, the rotation control module 300 may include:
the angle determining submodule is used for controlling the rotating device to rotate to each preset rotating angle and determining a target rotating angle according to wind noise information collected by the microphone at each preset rotating angle; the target rotation angle further comprises leeward rotation angles when all wind noise information corresponding to the preset rotation angles is larger than a wind noise threshold value, and the wind noise information corresponding to the leeward rotation angles is smaller than the wind noise information corresponding to the two adjacent preset rotation angles respectively;
and the angle rotating sub-module is used for rotating the rotating device to a target rotating angle.
Alternatively, the angle determination sub-module may include:
the rotating unit is used for controlling the rotating device to rotate clockwise or anticlockwise to the next preset rotating angle;
the first judging unit is used for taking the next preset rotation angle as the current preset rotation angle and judging whether wind noise information of the microphone at the current preset rotation angle is larger than a wind noise threshold value or not;
the first determining unit is used for taking the current preset rotation angle as a target rotation angle if the current preset rotation angle is not larger than the wind noise threshold value;
the second judging unit is used for judging whether all preset rotation angles are rotated if the wind noise threshold value is larger than the wind noise threshold value; if the rotating unit does not rotate by all the preset rotating angles, sending a starting signal to the rotating unit;
and the second determining unit is used for detecting the leeward rotating angle and taking the leeward rotating angle as a target rotating angle according to wind noise information corresponding to all the preset rotating angles if all the preset rotating angles are rotated.
Optionally, the apparatus may further include:
the windless judging module is used for judging whether the wind noise information is smaller than the windless threshold value if the wind noise information is not larger than the wind noise threshold value; wherein the no wind threshold is less than the wind noise threshold;
the optimal rotation module is used for controlling the rotation device to rotate to an optimal rotation angle if the optimal rotation module is smaller than the windless threshold value; wherein when the rotation means rotates to an optimal rotation angle, the sound pick-up hole on the rotation means is directed towards the mouth area of the wearer of the head mounted display device.
In the embodiment of the invention, the rotation control device is used for controlling the rotation of the rotation device so as to rotationally adjust the direction of the pick-up hole on the convex part of the rotation device, thereby realizing the rotation adjustment of the pick-up direction of the microphone in the head-mounted display device; through rotation control module 300 at the rotatory target rotation angle of control rotary device, can rotatory adjustment microphone's pickup orientation, reduce the wind noise that the microphone picked up, and then pick up more people's voice, improve conversation quality and wear display device's use experience.
Corresponding to the above method embodiments, the embodiments of the present invention further provide a head-mounted display device, and a head-mounted display device described below and a microphone-oriented rotation control method described above may be referred to correspondingly to each other.
A head mounted display device comprising:
a rotation control mechanism of microphone orientation as provided in the above embodiments;
a memory for storing a computer program;
and a processor for implementing the steps of the microphone orientation rotation control method provided in the above embodiment when executing the computer program.
The head-mounted display device provided in this embodiment may further include a microphone having a sound pickup port connected to a sound pickup hole in a rotating device in the rotation control mechanism.
Specifically, the head-mounted display device provided in this embodiment may be a glasses device, such as AR glasses.
Corresponding to the above method embodiments, the embodiments of the present invention further provide a readable storage medium, where a readable storage medium described below and a method for controlling rotation of a microphone orientation described above may be referred to correspondingly.
A readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method for controlling rotation of a microphone orientation provided by the above method embodiment.
The readable storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, and the like.
In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the apparatus, the head-mounted display device and the readable storage medium disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant points refer to the description of the method section.
The rotation control mechanism, the method and the device for the microphone orientation provided by the invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims (8)

1. A rotation control method of a microphone orientation, characterized by being applied to a head-mounted display device provided with a rotation control mechanism of the microphone orientation, the rotation control mechanism including a rotation device and a rotation control device, the rotation device being provided in a recess on a target surface of a housing of the head-mounted display device; the rotating device arranged in the groove at least partially protrudes out of the target surface, and a pickup hole is formed in the protruding portion of the rotating device protruding out of the target surface; the rotation control device is used for controlling the rotation device to correspondingly rotate according to a control signal of a processor of the head-mounted display device so as to rotate the direction of the pick-up hole on the protruding part; the method comprises the following steps:
acquiring wind noise information acquired by a microphone in the head-mounted display device; the pick-up port of the microphone is connected with the pick-up hole on the rotating device;
judging whether the wind noise information is larger than a wind noise threshold value or not;
if yes, controlling the rotating device to rotate to a target rotation angle; the target rotation angle comprises a preset rotation angle, wherein wind noise information acquired by the microphone is smaller than the wind noise threshold value.
2. The method of claim 1, wherein the controlling the rotation of the rotation device to a target rotation angle comprises:
controlling the rotating device to rotate to each preset rotating angle, and determining the target rotating angle according to wind noise information collected by the microphone at each preset rotating angle; the target rotation angle further comprises lee rotation angles when all wind noise information corresponding to the preset rotation angles is larger than a wind noise threshold value, and the wind noise information corresponding to the lee rotation angles is smaller than the wind noise information corresponding to two adjacent preset rotation angles respectively;
and rotating the rotating device to the target rotation angle.
3. The method for controlling rotation of a microphone according to claim 2, wherein determining the target rotation angle according to wind noise information collected by the microphone at each preset rotation angle comprises:
controlling the rotating device to rotate clockwise or anticlockwise to the next preset rotation angle;
taking the next preset rotation angle as the current preset rotation angle, and judging whether wind noise information of the microphone at the current preset rotation angle is larger than a wind noise threshold value or not;
if the wind noise threshold value is not greater than the wind noise threshold value, taking the current preset rotation angle as the target rotation angle;
if the wind noise is larger than the wind noise threshold value, judging whether all the preset rotation angles are rotated;
if not rotating all the preset rotation angles, executing the step of controlling the rotating device to rotate clockwise or anticlockwise to the next preset rotation angle;
if all the preset rotation angles are rotated, detecting the leeward rotation angle according to wind noise information corresponding to all the preset rotation angles, and taking the leeward rotation angle as the target rotation angle.
4. A method of controlling rotation of a microphone according to any one of claims 1 to 3, wherein after the determining whether the wind noise information is greater than a wind noise threshold value, further comprising:
if the wind noise information is not greater than the wind noise threshold value, judging whether the wind noise information is smaller than a no-wind threshold value or not; wherein the no wind threshold is less than the wind noise threshold;
if the wind-free threshold value is smaller than the wind-free threshold value, controlling the rotating device to rotate to an optimal rotation angle; wherein, when the rotation device rotates to the optimal rotation angle, the pick-up hole on the rotation device faces to the mouth area of the wearer of the head-mounted display device.
5. The method for controlling rotation of a microphone according to claim 1, wherein the acquiring wind noise information collected by a microphone in the head-mounted display device includes:
acquiring wind noise information of the microphone at the current rotation angle; the current rotation angle is the current rotation angle of the rotating device.
6. The method for controlling rotation of a microphone according to claim 5, wherein the obtaining wind noise information of the microphone at the current rotation angle includes:
and acquiring wind noise information of the microphone at the current rotation angle according to a preset time interval.
7. A rotation control apparatus of a microphone orientation, characterized by being applied to a head-mounted display device provided with a rotation control mechanism of the microphone orientation, the rotation control mechanism including a rotation device and a rotation control device, the rotation device being provided in a recess on a target surface of a housing of the head-mounted display device; the rotating device arranged in the groove at least partially protrudes out of the target surface, and a pickup hole is formed in the protruding portion of the rotating device protruding out of the target surface; the rotation control device is used for controlling the rotation device to correspondingly rotate according to a control signal of a processor of the head-mounted display device so as to rotate the direction of the pick-up hole on the protruding part; the device comprises:
the wind noise acquisition module is used for acquiring wind noise information acquired by a microphone in the head-mounted display device; the pick-up port of the microphone is connected with the pick-up hole on the rotating device;
the wind noise judging module is used for judging whether the wind noise information is larger than a wind noise threshold value or not;
the rotation control module is used for controlling the rotation device to rotate to a target rotation angle if the wind noise threshold value is larger than the wind noise threshold value; the target rotation angle comprises a preset rotation angle, wherein wind noise information acquired by the microphone is smaller than the wind noise threshold value.
8. A head-mounted display device, comprising:
a rotation control mechanism for the microphone;
a memory for storing a computer program;
a processor for implementing the steps of the microphone orientation rotation control method according to any one of claims 1 to 6 when executing the computer program;
wherein the rotating means is disposed in a recess on a target surface of a housing of the head-mounted display device; the rotating device arranged in the groove at least partially protrudes out of the target surface, and a pickup hole is arranged on the protruding part of the rotating device protruding out of the target surface and is used for being connected to a pickup port of a microphone of the head-mounted display device; the rotation control device is used for controlling the rotation device to correspondingly rotate according to a control signal of a processor of the head-mounted display device so as to rotate the direction of the pick-up hole on the protruding portion.
CN202210468230.5A 2022-04-29 2022-04-29 Rotation control mechanism, method and device for microphone orientation and head-mounted display equipment Active CN114866904B (en)

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