Microphone with pattern selection and controls

Abstract

This application relates to a microphone with mode selection and control, comprising: a housing, the housing being provided with two microphones for collecting sound, the microphones being spaced apart on the left and right sides; a control module unit connected to the microphones and capable of digitally processing the collected sound signals and outputting them, the digital signal processing including changing the gain of the microphone amplifier; a pickup mode selection switch, the pickup mode selection switch being capable of selecting at least two pickup modes; corresponding to any two of the pickup modes, a different number of microphones activated for sound collection and / or a different gain of the microphone amplifier. The microphone of this application is suitable for different scenarios, is easy to use, and has excellent sound pickup performance.

Description

Technical Field

[0001] The present invention relates to a sound pickup device, and more particularly to a microphone with mode selection and control. Background Art

[0002] In the field of acoustics, sound pickup equipment is a crucial device. Its function is to convert analog vibration signals into electrical signals of corresponding frequencies. Through amplification, spectrum analysis, noise reduction, and other technical means, the sound is converted back into an electronic signal for storage, transmission, and further amplification. Mobile phones, computers, and microphones all have sound pickup components. It's clear that recording requirements vary in different environments. For example, in relatively quiet environments, users don't want to disturb others.

[0003] Therefore, this application is created in this context. Summary of the Invention

[0004] In order to overcome the problems existing in the related art, the present application aims to provide a microphone that can adapt to different scenarios or needs.

[0005] To achieve the above-mentioned purpose of this application, the technical solutions adopted in this application are as follows:

[0006] A microphone with mode selection and control includes: a housing provided with two microphones for collecting sound, the two microphones being spaced apart on the left and right sides; a control module connected to the microphones and capable of digitally processing the collected sound signals and outputting them, the digital signal processing including changing the gain of the microphone amplifier; and a pickup mode selection switch capable of selecting at least two pickup modes; corresponding to any two of the pickup modes, a different number of microphones activated for sound collection and / or a different gain of the microphone amplifier are activated.

[0007] Preferably, the sound pickup mode includes: a first sound pickup mode, in which only one of the microphones is activated and the sound signal collected by the activated microphone is transmitted to the left and right channels respectively.

[0008] Preferably, the sound pickup mode includes: a second sound pickup mode, in which only one of the microphones is activated and the sound signal collected by the activated microphone is transmitted to the left and right channels respectively, and the gain of the microphone amplifier is increased by a preset value.

[0009] Preferably, the sound pickup mode includes: a third sound pickup mode, in which both microphones are activated and transmit sound signals to the left and right channels respectively.

[0010] Preferably, the sound pickup mode includes: a first sound pickup mode, in which only one of the microphones is activated and the sound signal collected by the activated microphone is transmitted to the left and right channels respectively; a second sound pickup mode, in which only the other of the microphones is activated and the sound signal collected by the activated microphone is transmitted to the left and right channels respectively, and the gain of the microphone amplifier is increased by a preset value; a third sound pickup mode, in which both of the microphones are activated and the sound signal collected by one of the microphones is correspondingly transmitted to the left channel, and the sound signal collected by the other of the microphones is transmitted to the right channel; the sound pickup mode selection switch has gears corresponding to the first sound pickup mode, the second sound pickup mode and the third sound pickup mode.

[0011] Preferably, there is an angle between the diaphragm surfaces of the two microphone heads.

[0012] Preferably, the microphone is a cardioid unidirectional microphone.

[0013] Preferably, the angle is 220°.

[0014] Preferably, the IC chip used for analog-to-digital conversion of the microphone is ES7243E, and the analog-to-digital converted signal is output through the Type-C interface.

[0015] Preferably, a base is detachably connected to the bottom of the shell, a circuit board connected to the microphone and used for analog-to-digital conversion is arranged inside the shell, a DSP control board for digitally processing the sound signal output by the analog-to-digital conversion circuit board is arranged inside the base, and the pickup mode selection switch is arranged on the base.

[0016] The beneficial effects of the present application are: by setting different pickup modes and according to the different numbers of microphones activated for sound collection and / or the different gains of the microphone amplifiers, the usage requirements in different scenarios are met, and the application has the advantages of being easy to use and having a good pickup effect.

[0017] The beneficial effects of this application and the preferred technical solutions will be further described in the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0019] Figure 1 FIG. 1 is a schematic diagram of the three-dimensional structure of the microphone shown in Example 1 viewed from one direction.

[0020] Figure 2FIG. 1 is a schematic diagram of the three-dimensional structure of the microphone shown in Example 1 viewed from one direction.

[0021] Figure 3 This is a schematic diagram showing the internal structure of the microphone after part of the outer shell is removed in Example 1.

[0022] Figure 4 This is a schematic diagram of the layout of the two microphones in Example 1.

[0023] Figure 5 This is a schematic diagram of the APDS-9960 gesture sensor structure.

[0024] Figure 6 This is a schematic diagram of the photoelectric signal changes of the APDS-9960 gesture sensor when performing a downward gesture.

[0025] Figure 7 is a schematic diagram of the microphone explosion structure shown in Example 1;

[0026] Figure 8 is a schematic diagram of the three-dimensional structure of the middle frame of the housing in Example 1;

[0027] Figure 9 It is a schematic diagram of the layout of the light-emitting units on the left and right sides of the housing in Example 1.

[0028] Figure 10 This is a circuit wiring diagram for gesture control and light control in Example 1.

[0029] Figure 11 This is a circuit connection diagram of the Type-C data terminal and the power supply terminal in Example 1.

[0030] Figure 12 This is a schematic diagram of the LED module circuit wiring in Example 1. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0032] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0033] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0035] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0036] One of the purposes of the present application is to achieve the purpose of microphone function control by setting sensors and combining them with mature software control technology, thereby improving the operational flexibility of microphone parameter or function adjustment, and having better functional scalability, which can effectively control the volume of the product and reduce production costs. Even if no physical function buttons or switches are set, the technical solution of the present application can be used to control the adjustment of microphone-related parameters, which is very helpful in reducing the volume of the product, saving space, and effectively controlling costs. Of course, in the case where there are a certain number of physical function control adjustment switches, the use of the technical solution of the present application will not cause any conflicts, and users can choose physical function control adjustment switch control or gesture control according to their needs, which is highly flexible.

[0037] It should be noted that gesture sensors are mature technology and it is easy for those skilled in the art to choose. In one embodiment, this application uses the selection of the APDS-9960 gesture sensor as an example for illustration, but this should not be used as a limitation of this application. Based on the same requirements, those skilled in the art can select the sensor model. The APDS-9960 gesture sensor has an LED light-emitting diode and multiple directional photodiodes. The directional photodiodes consist of four photodiodes, each of which is placed at a predefined distance from the LED light-emitting diode. Reference Figure 5 As shown, four photodiodes are arranged in a diamond shape, and each photodiode is used to indicate a direction, namely up, down, left and right.

[0038] When an LED emits infrared energy, it is emitted into the air unless it is reflected by an object, such as a hand. A photodiode detects the reflected energy at varying intensities, depending on the object's position. For example, a photodiode at the leading edge of a gesture initially receives less reflected energy than one at the trailing edge, resulting in a higher count value for one photodiode than the other. As a gesture progresses, continuous measurements result in photodiodes at different locations detecting varying intensities of reflected energy. This directional information flow is analyzed to determine the gesture.

[0039] refer to Figure 6 As shown in the figure, for example, if the user swipes the hand from the top to the bottom of the gesture sensor, at the beginning of the gesture, the incident light detected by the lower photodiode is stronger than that of the upper photodiode; during the gesture, the hand gradually moves to the point where the two photodiodes receive equal energy; and when the gesture is completed, the reflected light received by the lower photodiode is weaker, while the light received by the upper photodiode is stronger. At this time, the curves and phases of the two photodiodes are completely reversed.

[0040] Based on the same principle, different gestures can generate different information for the gesture sensor. In the program, different gestures can be defined to correspond to different functional controls, including silent mode, high-gain mode, low-gain mode, volume increase adjustment mode, volume decrease adjustment mode, and audio frequency range limitation. Of course, more modes can be configured based on functional control requirements, which is obviously a simple matter. The same control principle applies to other types of photoelectric gesture sensors, which are not listed in this application.

[0041] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0042] Example 1, reference Figure 1-4FIG. 1 shows a microphone 100 with mode selection and control, comprising a housing 10 equipped with a microphone head 101 for collecting sound and an output terminal 102 for outputting sound signals. Specifically, output terminal 102 is a data interface. In this embodiment, after sound signals are converted, they are output via a data cable to a DSP control module 107 in a base 1011. The base 1011 and housing 10 are designed as separate units and connected via a universal ball joint 120 for easy angle adjustment. In other embodiments, the base 1011 and housing 10 can also be designed as a single unit. In this case, no data cable connection is required, and wiring can be installed within the housing 10. The housing 10 also includes a gesture sensor 103 based on the principle of photoelectric conversion. Gesture sensor 103 receives light signals generated by gestures and converts them into photoelectric signals. Under the control of the DSP control module, the microphone 100 executes a preset control mode corresponding to the light signals. The control mode, as described above, can be set as needed.

[0043] In this application, an angle exists between the light-receiving surface of the gesture sensor 103 and the diaphragm surface of the microphone 101. This can also be understood as the light-receiving surface of the gesture sensor 103 being neither coplanar nor parallel to the diaphragm surface of the microphone 101. Because microphones are primarily used to capture human voices, when the user places the microphone, the distance between the user's body, particularly the head and upper torso, and the microphone is relatively small. To prevent misjudgments due to body occlusion, a certain angle needs to be set between the light-receiving surface of the gesture sensor 103 and the diaphragm surface of the microphone 101. Preferably, the two are perpendicular to each other. In this case, the user's non-gesture movements or other occlusions will not affect the gesture sensor. The DSP control module 107 will only activate relevant functions when the user utilizes gesture control, thus avoiding misjudgments.

[0044] In this embodiment, the gesture sensor is preferably disposed on the top of the housing 10 with its light-receiving surface facing upward. To protect the gesture sensor, it is disposed on the top inner side of the housing 10 and a light-transmitting portion 104 is disposed at a corresponding position on the housing.

[0045] There are two microphones 101, which are fixedly mounted inside the housing 10 using a bracket 108. The housing 10 includes a sound-transmitting portion 105 that allows sound to be transmitted to the microphones. The diaphragms of the two microphones form a certain angle between them. As a preferred method, the diaphragms of the two microphones form an angle of approximately 220°. This embodiment uses a unidirectional microphone. In this way, the sound collection range of the microphone is roughly equivalent to the angle between the diaphragms of the two microphones. When both microphones are working, a wide range of sound collection is guaranteed. When one of the microphones is working, it can also collect human voices in front of the microphone. Of course, in other embodiments, an omnidirectional microphone can also be used, but this may easily cause the trouble of howling.

[0046] In other embodiments, the gesture sensor 103 may also be disposed at other locations on the top of the housing, with its light-receiving surface facing obliquely upward; or the gesture sensor may be disposed on the left and right sides of the housing, or on the back of the housing.

[0047] In the present application, when a unidirectional microphone is used, the diaphragm surface of the microphone has one or more states facing straight ahead, left front, right front, upper front and lower front.

[0048] In other embodiments, the number of microphones can be greater, and an angle is set between the diaphragm surfaces of any two adjacent microphones, so that a 360° sound collection can be formed.

[0049] In other embodiments, the microphone is also mounted on a rotating drive component, for example, the microphone is rotated by a motor (not shown), so that sound collection at different angles can be achieved, and the rotation angle can be set according to a program.

[0050] In this embodiment, physical function control and adjustment switches 106 are provided on the base 1011. These switches can be set based on frequency of use. For example, if the volume needs to be adjusted frequently, a volume switch can be set; if the gain needs to be adjusted frequently, a gain adjustment switch can be set. Functions that are used less frequently can be implemented using the gesture sensor 103. Of course, in some embodiments, the physical function control and adjustment switches can be completely eliminated. In this case, all functions are set using the gesture sensor.

[0051] In this embodiment, the sound signals collected by the microphone are transmitted to the DSP control module unit and the microphone head is controlled. Preferably, a Type-C data cable 109 is used for connection. Type-C eliminates the trouble of plugging in cables and can be plugged in either forward or reverse. More importantly, the Type-C interface has strong compatibility and realizes the unification of data transmission and power supply. Therefore, Type-C can also be used to output sound signals to peripheral devices.

[0052] In this application, the housing for mounting the microphone and gesture sensor is flat, like a piece of used soap, which is beneficial for increasing the angle of acquisition without increasing the volume when two microphones are installed. In other embodiments, the housing can also be cylindrical, polygonal, etc.

[0053] Another purpose of this application is to provide a microphone that can be controlled by light, based on the above. Figure 7-Figure 9 As shown, the microphone structure of Example 1 of the present application is further described below.

[0054] The housing 10 includes a front cover 1001, a front shell 1003, a middle frame 1005, a rear shell 1004, and a rear cover 1002. The five together form a cavity. The microphone 101 is installed on a support plate 1032 formed by the front shell 1003 and the rear shell 1004. The sound pickup portion of the microphone 101 is located above the support plate 1032, and the microphone analog-to-digital conversion circuit board 1007 is located below the support plate 1032. Corresponding to the microphone, in order to facilitate sound pickup, windows 1033 and 1053 are respectively opened on the front shell 1003 and the rear shell 1004; the front cover 1001 is clamped on the outside of the front shell 1003, and the rear cover 1002 is clamped on the outside of the rear shell 1004. Corresponding to the window positions of the front shell and the rear shell, the front cover and The rear cover is provided with a sound-transmitting portion 105, which is supported by a sound-transmitting material. In addition to being sound-transmitting, the sound-transmitting portion 105 can also transmit light due to the presence of pores, and can also serve as a light-transmitting portion; the middle frame 1005 is an annular closed shape, which can strengthen the connection between the front shell and the rear shell. LED module units 1006 are respectively mounted on the left and right sides of the middle frame, and a light guide cover 1027 is mounted on the outside of the LED module unit. The LED module unit includes a PCB board and LED lamp beads 1025 arranged thereon, which serve as a light-emitting unit. In this embodiment, the LED lamp beads are arranged linearly in the up and down directions. After passing through the light guide cover 1027, these lit lamp beads emit strip-shaped light, and users can observe these strip-shaped lights through the light-transmitting portion on the front cover 1001. The microphone analog-to-digital conversion circuit board 1007 also has an LED front light bead 1030. A light guide plate 1008 is positioned adjacent to the LED front light bead 1030 and surrounds it with a notch. When the LED front light bead 1030 illuminates, the light is directed through the light guide plate 1008. A through hole is provided on the front housing 1003 corresponding to the light guide plate 1008. A light ring 1009 is inserted into the through hole and pressed against the light guide plate 1008. A corresponding through hole is also provided on the front cover 1001. A decorative cover 1020 is mounted on the through hole. The decorative cover 1020 is made of a transparent material. When the LED front light bead 1030 illuminates, the light guide plate 1008 illuminates the decorative cover 1020. The lighting on the decorative cover 1020 can be set to always on. Due to the light guide plate, the light it produces is soft and non-glaring, and can be set to different color temperatures, such as warm, cool, or even white, as desired. In other embodiments, the lamp beads may also be arranged in the inner area of ​​the lamp ring.

[0055] The LED module units 1006 located on the left and right sides of the middle frame mainly match different preset modes according to the changes in the sound numerical signal, which will be further described below.

[0056] The bottom of the middle frame is provided with a countersunk hole 10041, below which is mounted an adjustment nut 1022. A hinged ball 1024 is provided on the base 1011. A support rod is attached to the hinged ball, and the upper end of the support rod has an external thread that matches the adjustment nut. This allows the base to be connected to the housing using the support rod and the adjustment nut, making disassembly easier. Due to the threaded connection structure at the bottom of the middle frame, the microphone body of this application can also be mounted on other brackets, providing flexibility and convenience. The hinged ball features multi-directional adjustment, also making it easy to use.

[0057] The base 1011 has an outer shell with shock-absorbing material at the bottom to prevent vibration and noise. A DSP control board is housed within the base shell. The housing 10 is provided with a data output interface for connecting to the microphone analog-to-digital converter circuit board. The base is provided with a data input interface for connecting to the DSP control board. A Type-C data cable connects the data output and input interfaces. Function control switches 106 are provided on the base, including a pickup mode switch, a volume switch, and a microphone gain switch. In other embodiments, a different number of switches may be provided to control sound-related parameters.

[0058] In some embodiments, the color of the LED module unit 1006 can be set according to the frequency of the sound. For example, the sound frequency can be divided into ultra-low frequency, low frequency, medium frequency, high frequency and ultra-high frequency according to the frequency range. Corresponding to each frequency band, the LED module unit 1006 emits a different color. In this way, when the user observes these lights, they can know the approximate frequency information of the corresponding sound. Since everyone's voice is different, if the user wants the sound output by the microphone to be what they want, some adjustments can be made according to the DSP, such as lowering the high and low frequencies and increasing the medium frequencies. In this way, feedback can be achieved through the color emitted by the LED module unit 1006. As for how to distinguish the information expressed by these colors, the user can refer to the product manual for matching, or in some embodiments, color markings can be made on the housing. For example, yellow corresponds to the frequency band of 500HZ-2000HZ. When the user observes the yellow light, they can know that the current sound is mainly concentrated in this frequency band. Of course, the frequency band range can be set more densely according to needs.

[0059] In some embodiments, the luminous color or brightness of the LED module unit 1006 can also be set according to the gain. It can be understood that the greater the gain, the greater the distortion. The operational amplifier has an ideal gain range. If it meets the requirements of the amplifier, better effects can be achieved. For example, if the ideal amplification value range is exceeded, the light is set to the brightest red, which reminds the user that the gain needs to be reduced. This can also provide good feedback.

[0060] Likewise, in some embodiments, the light color or brightness of the LED module unit 1006 may also be set according to the volume, which will not be elaborated here.

[0061] In some other embodiments, the light color or brightness of the LED module unit 1006 can also be set according to various adjustments such as the sound pickup mode, volume, and microphone gain.

[0062] In some embodiments, the two side areas of the middle frame 1005 can be made of translucent material, or translucent layers corresponding to the LED module unit 1006 are set on both sides of the shell, so that the user can intuitively observe the changes in light.

[0063] In these embodiments, the preset mode includes one or more of the following: color, brightness, flashing frequency, and lighting duration of the light emitting unit, which can be set according to needs.

[0064] In this application, the change of light is used to realize a kind of feedback and achieve an interactive purpose. According to use, it can improve the user's understanding of sound characteristics and understand his own vocal characteristics. It not only increases the fun of the product, but also effectively avoids boredom and can also record better sound effects.

[0065] refer to Figure 10-12 As shown, a circuit schematic diagram in one embodiment is shown. Figure 10 In the figure, the MCU used to control the LED module unit adopts SC92F7323X28U, the microphone analog-to-digital conversion adopts ES7243E, and the gesture control adopts SC8P1152A. The 18th pin of ES7243E is connected to the 10th pin of SC92F7323X28U, the 19th pin of ES7243E is connected to the 9th pin of SC92F7323X28U, the A3 and B3 of Type-C are connected to the 8th pin of SC92F7323X28U respectively, and the A4 and B4 of Type-C are connected to the 7th pin of SC92F7323X28U respectively. In this way, the signals from the microphone analog-to-digital conversion circuit board and the DSP control module unit can control the light emission of the LED module unit. The setting of the light emission of the LED module unit can be implemented through the program in the MCU.

[0066] The circuitry of the DSP control module is not shown here. Those skilled in the art can select different circuits based on their sound adjustment needs, such as the pickup mode, volume, and microphone gain discussed above. The DSP control module only needs to provide control signals to the MCU controlling the LED module. In this embodiment, power is supplied to the gesture control unit, the MCU controlling the LED module, and the microphone analog-to-digital conversion unit via USB-C transmission, requiring only an external power supply terminal on the base.

[0067] One purpose of the present application is to provide a microphone with mode selection and control based on the above.

[0068] In this embodiment, different sound pickup patterns are set, which will be described below.

[0069] One of the function control adjustment switches 106 on the base 1011 is configured as a pickup mode selection switch, and the pickup mode selection switch has gear positions corresponding to the first pickup mode, the second pickup mode, and the third pickup mode; Figure 10-12 The pickup modes include: the first pickup mode, which we define as cardioid pickup mode. In this mode, only MIC1 is activated and the sound signals it collects are transmitted to the left and right channels respectively. This mode is used when mono collection is required in general environments; the second pickup mode, which we define as crystal pickup mode. In this pickup mode, only MIC2 is activated and the sound signals it collects are transmitted to the left and right channels respectively. The gain of the microphone amplifier is increased by 25%. This mode is suitable for working in a quiet environment at night. By increasing the gain, you can speak softly and the signal can be better received without affecting others; the third pickup mode, which we define as stereo pickup mode. In this pickup mode, both microphones MIC1 and MIC2 are activated and correspondingly transmit the sound signal collected by MIC1 to the left channel and the sound signal collected by MIC2 to the right channel. This mode is suitable for stereo collection in general environments.

[0070] Of course, in other embodiments, the sound pickup mode includes a first sound pickup mode, in which only one of the microphones is activated and the sound signals collected by the activated microphone are transmitted to the left and right channels respectively; or, the sound pickup mode includes a second sound pickup mode, in which only one of the microphones is activated and the sound signals collected by the activated microphone are transmitted to the left and right channels respectively, and the microphone amplifier gain is increased by a preset value; or, the sound pickup mode includes a third sound pickup mode, in which both microphones are activated and transmit sound signals to the left and right channels respectively. Corresponding to any two different sound pickup modes, the number of microphones activated for sound collection is different and / or the microphone amplifier gain is different, thereby achieving the purpose of the present application.

[0071] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A microphone with mode selection and control, characterized in that, include: A housing is provided with two microphones for collecting sound, the microphones being spaced apart on the left and right sides; A control module unit is connected to the microphone and can digitally process the sound signal collected by the microphone and then output it, wherein the digital signal processing of the sound signal includes changing the gain of the microphone amplifier; A pickup mode selection switch, wherein the pickup mode selection switch can select at least two pickup modes; Corresponding to any two different pickup modes, the number of microphones activated for sound collection is different and / or the gain of the microphone amplifier is different; A gesture sensor receives the light signal generated by the gesture and, through photoelectric conversion, enables the microphone to execute a preset control mode corresponding to the light signal under the control of the control module unit; The light-receiving surface of the gesture sensor is neither coplanar nor parallel to the diaphragm surface of the microphone.

2. The microphone with mode selection and control according to claim 1, characterized in that The pickup modes include: The first sound pickup mode: in the first sound pickup mode, only one of the microphones is activated and the sound signal collected by the activated microphone is transmitted to the left and right channels respectively.

3. The microphone with mode selection and control according to claim 1, characterized in that The pickup modes include: The second sound pickup mode: in the second sound pickup mode, only one of the microphones is activated and the sound signal collected by the activated microphone is transmitted to the left and right channels respectively, and the gain of the microphone amplifier is increased by a preset value.

4. The microphone with mode selection and control according to claim 1, characterized in that The pickup modes include: A third sound pickup mode: in the third sound pickup mode, both microphones are activated and transmit sound signals to the left and right channels respectively.

5. The microphone with mode selection and control according to claim 1, characterized in that The pickup modes include: a first sound pickup mode, in which only one of the microphones is activated and the sound signal collected by the activated microphone is transmitted to the left and right channels respectively; a second sound pickup mode, in which only the other microphone is activated and the sound signal collected by it is transmitted to the left and right channels respectively, and the gain of the microphone amplifier is increased by a preset value; a third sound pickup mode, in which both microphones are activated and the sound signal collected by one of the microphones is transmitted to the left channel, and the sound signal collected by the other microphone is transmitted to the right channel; The sound pickup mode selection switch has gear positions corresponding to the first sound pickup mode, the second sound pickup mode and the third sound pickup mode.

6. The microphone with mode selection and control according to any one of claims 1 to 5, characterized in that: There is an angle between the diaphragm surfaces of the two microphone heads.

7. The microphone with mode selection and control according to claim 6, characterized in that The microphone is a cardioid unidirectional microphone.

8. The microphone with mode selection and control according to claim 6, characterized in that The included angle is 220°.

9. The microphone with mode selection and control according to claim 1, characterized in that The IC chip used for analog-to-digital conversion of the microphone is ES7243E, and the signal after analog-to-digital conversion is output through the Type-C interface.

10. The microphone with mode selection and control according to any one of claims 1-5, 7-9, characterized in that: A base is detachably connected to the bottom of the shell, a circuit board connected to the microphone and used for analog-to-digital conversion is arranged inside the shell, a DSP control board that performs digital signal processing on the sound signal output by the analog-to-digital conversion circuit board is arranged inside the base, and the pickup mode selection switch is arranged on the base.

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