CN213213794U - Subassembly and pickup apparatus - Google Patents

Abstract

The embodiment of the specification provides a component and a pickup device, wherein the pickup device is used for accommodating at least one microphone, and the component is arranged beside a sound inlet surface of the microphone when the component is arranged on the pickup device; the assembly is provided with a hollow area or a rough surface, so that reflected sound waves entering the sound entering surface are reduced. The component and the pickup device can effectively reduce the interference of reflected sound waves to the pickup performance of the microphone.

Description

Subassembly and pickup apparatus

Technical Field

The embodiment of the specification relates to the technical field of sound signal processing, in particular to an assembly and a sound pickup device.

Background

The microphone is an energy conversion device for converting a sound signal into an electric signal, and generally has at least one sound entrance surface, and a sound wave signal enters an inner cavity of the microphone through the sound entrance surface and is then induced by a vibrating diaphragm to generate vibration.

The quality of sound wave signals entering the inner cavity of the microphone through the sound inlet surface influences the sound pickup performance of the microphone, and further influences the sound pickup performance of the whole sound pickup device.

How to further improve the sound pickup performance of the sound pickup apparatus is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The specification describes an assembly and a sound pickup device, which adopts a hollow or rough surface design to reduce the interference of reflected sound waves and improve the sound pickup performance of a microphone.

In a first aspect, embodiments of the present specification provide an assembly for use in a sound pickup apparatus for accommodating at least one microphone;

when the component is arranged on the pickup device, the component is positioned beside at least one sound entering surface of at least one microphone;

the component is provided with at least one hollow area or rough surface respectively corresponding to the at least one sound entering surface, and the at least one hollow area or rough surface is used for reducing reflected sound waves entering the at least one sound entering surface.

In a second aspect, embodiments of the present specification further provide a sound pickup apparatus including at least one component, the sound pickup apparatus being configured to accommodate at least one microphone;

at least one component located alongside at least one sound entry surface of at least one microphone;

at least one hollow area or rough surface corresponding to the at least one sound entering surface is arranged on the at least one component, and the at least one hollow area or rough surface is used for reducing reflected sound waves entering the at least one sound entering surface.

In one embodiment, the roughened surface is a thin layer of sound absorbing material adhered to at least one of the components.

In one embodiment, the rough surface is a concave-convex surface obtained after treatment of a local area of the at least one component located beside the at least one sound inlet surface.

In one embodiment, the at least one assembly comprises a support for supporting the at least one microphone.

In one embodiment, each of the at least one microphone includes a first sound entrance surface and a second sound entrance surface, the first sound entrance surface is a front surface for the entrance of the sound wave signal in the target direction, and the second sound entrance surface is a back surface arranged opposite to the first sound entrance surface; at least one component is provided with a hollow area or a rough surface which respectively corresponds to the second sound entering surface.

In one embodiment, the number of microphones is plural; at least one of the assemblies includes a support plate for supporting a plurality of microphones; the microphones are uniformly distributed along the edge of the supporting plate, and the plane of the sound inlet surface of each microphone is perpendicular to the plane of the supporting plate.

In one embodiment, the geometric center of each microphone is located above the support plate.

In one embodiment, the size of the hollow area is matched with the wavelength range of the target sound wave signal of the sound pickup device.

In one embodiment, the hollowed-out region comprises a first region and a second region; the first area is positioned below the geometric center of the microphone corresponding to the sound entering surface and is used for embedding the microphone; and the second area is positioned beside the corresponding sound inlet surface and communicated with the first area.

In an embodiment the shape of the first area is adapted to the apparent shape of the microphone.

In one embodiment, the size of the second zone is adapted to the wavelength range of the target sound wave signal of the sound pickup device.

In one embodiment, the first region is rectangular in shape, and the second region is an area surrounded by an arc-shaped edge and a line segment, and the length of the line segment is consistent with the length of the long edge of the rectangle.

In one embodiment, the at least one component includes a PCB circuit board, and the PCB circuit board is provided with at least one hollow area or rough surface corresponding to the at least one sound incident surface.

In one embodiment, the PCB circuit board is located at the bottom of the pickup.

In one embodiment, the sound pickup apparatus further includes a housing including a top surface and a sidewall;

the top surface and the side wall are both provided with a plurality of sound inlet holes; the distance between the appearance bottom end point of each microphone in the at least one microphone and the plane determined by the bottom end point of the side wall is larger than a preset reflection distance, and the reflection distance is matched with the wavelength range of the target sound wave signal of the sound pickup device.

In a third aspect, embodiments of the present specification further provide a conference telephone apparatus, where the conference telephone apparatus includes the assembly according to the first aspect or the sound pickup device according to any one of the second aspects.

In a fourth aspect, embodiments of the present specification further provide a terminal device, where the terminal device includes the component according to the first aspect or the sound pickup apparatus according to any one of the second aspects.

In a fifth aspect, embodiments of the present specification further provide an audio recording apparatus including the assembly according to the first aspect or the sound pickup device according to any one of the second aspects.

In a sixth aspect, embodiments of the present specification further provide a portable wearable device supporting voice recognition, voice call, and/or video call, including the assembly according to the first aspect or the sound pickup apparatus according to any one of the second aspects.

In a seventh aspect, this specification embodiment also provides an IoT device that supports at least voice capture, including the components described in the above first aspect or the sound pickup apparatus described in any of the above second aspects.

In an eighth aspect, an embodiment of the present specification further provides a smart home device, where the smart home device at least supports voice collection, and includes the component according to the first aspect or the sound pickup apparatus according to any one of the second aspects.

In a ninth aspect, embodiments of the present specification further provide an trip device, which supports at least voice collection, and includes the component according to the first aspect or the sound pickup apparatus according to any one of the second aspects.

By adopting the sound pickup device provided by the embodiment of the specification, the at least one component located at the side of the sound entering surface of the microphone is provided with the hollowed-out area or the rough surface so as to reduce the reflected sound wave entering the sound entering surface, for example, the hollowed-out area or the rough surface corresponding to the sound entering surface of the microphone can be arranged on the supporting plate for supporting the microphone so as to reduce the reflected sound wave generated by the incident sound wave signal reflected by the supporting plate, and the reflected sound wave can interfere with the direct sound wave and influence the sound pickup effect, so that the hollowed-out area or the rough surface is arranged on the at least one component around the sound entering surface, the interference of the reflected sound wave can be effectively reduced, and the sound pickup performance of the sound pickup device is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present specification, the drawings needed to be used in the description of the embodiments will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments disclosed in the present specification, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 shows a schematic cross-sectional view of a prior art method of generating reflected sound waves;

FIG. 2 is a schematic cross-sectional view illustrating the provision of a hollow-out region in one embodiment of the present disclosure;

FIG. 3 is a perspective view of a microphone mounted on a support plate in one embodiment of the present disclosure;

FIG. 4 illustrates a top view of an embodiment of the present disclosure with a hollowed-out area disposed on a support plate;

FIG. 5 illustrates an exemplary view of a hollowed out area in one embodiment of the present description;

fig. 6 shows a top view of a plurality of microphones mounted on a support plate in one embodiment of the present description.

Detailed Description

Embodiments disclosed in the present specification are described below with reference to the accompanying drawings.

The inventor finds in the research process that after the microphone is installed in the complete equipment with the sound pickup function (hereinafter referred to as a sound pickup device), the complete structure of the sound pickup device except the microphone affects the sound pickup performance of the microphone, and one of the affecting factors lies in that: components around the sound-entering surface of the microphone, particularly the plate-shaped structure, can obviously reflect sound wave signals, the reflected sound wave signals can also enter the sound-entering surface, but signal characteristics such as phases of the reflected sound wave signals are changed, the reflected sound waves become interference for direct sound waves, and the sensitivity of the diaphragm to the direct sound wave signals is influenced.

For example, referring to fig. 1, in the sound pickup apparatus, a supporting plate 10 (i.e., a product base) is disposed below a microphone 11, a part of external incoming direct sound waves S1 directly enter the microphone 11 through a sound entrance surface 111, and another part of the external incoming direct sound waves S1 are reflected after reaching the supporting plate 10 to generate reflected sound waves S2 entering the sound entrance surface 111, where the reflected sound waves interfere with the direct sound waves.

In view of this, the embodiments of the present disclosure at least disclose an assembly and a sound pickup apparatus, which employ a hollow design to minimize the interference of reflected sound waves.

In a first aspect, embodiments of the present description disclose an assembly. The component is applied to a pickup device, at least one microphone can be installed in the pickup device, the component is located beside at least one sound entering surface of the at least one microphone when being installed on the pickup device, at least one hollow area or rough surface corresponding to the at least one sound entering surface is arranged on the component, and the arrangement of the hollow area or the rough surface can reduce reflected sound waves entering the at least one sound entering surface.

The component may also be any component located on the side of the sound entry face of the microphone, for example, a support, a housing, a PCB board, and any one or more of a variety of other structural components. Wherein the component is located beside the sound-entering surface, a part of the component may be located beside the sound-entering surface, that is, the component is considered to be located beside the sound-entering surface. For example, in a sound pickup apparatus, a support plate is provided below the microphone, and a partial region of the support plate is located on the side of the sound entrance surface, so that the support plate can be a component located on the side of the sound entrance surface. That is, the components are located beside the sound entrance surface, which is not to be understood as that all the components are located beside the sound entrance surface, but at least a part of the components located beside the sound entrance surface can be used as target components capable of setting the hollow area.

In one embodiment, the component may be a supporting plate, and a hollow area or a rough surface is disposed beside the microphone on the supporting plate. Illustratively, referring to fig. 2, in one embodiment, the supporting plate 12 is disposed below the microphone 11, a part of the externally-entering direct sound wave S1 directly enters the microphone 11 through the sound entrance surface 111, and another part of the externally-entering direct sound wave continues to propagate after reaching the hollow-out area 121 of the supporting plate and fails to be reflected into the sound entrance surface 111, that is, the hollow-out area 121 is disposed, so that the reflected sound wave entering the sound entrance surface 111 is reduced.

In one embodiment, the position of the hollow area should be set corresponding to the specific position of the sound-entering surface of the microphone, and is generally set within a preset distance range around the sound-entering surface.

Specifically, the reflection area of the sound entrance surface of the microphone may be calculated in advance according to the wavelength range of the target sound wave signal of the microphone, and as an implementation manner, an area located in the reflection area on at least one component beside the sound entrance surface is set as a hollow area. The reflection region is a region where a reflected sound wave can be generated and a reflected sound wave signal can be incident on the sound incident surface of the microphone. In the embodiment of the present disclosure, the size of the reflection area may overlap with the hollow-out area, but the hollow-out area does not necessarily fall into the reflection area completely, for example, in an embodiment, in each hollow-out area provided on the support plate for supporting or fixing the microphone, each hollow-out area may further include a sub-area for embedding the microphone in addition to the sub-area for reducing reflection, and the two sub-areas are spliced into a complete hollow-out area.

In a further embodiment, a roughening is provided on at least one component in a partial region which is located laterally to the respective sound entry surface. The roughened surface may be a thin layer of sound absorbing material adhered to at least one component. For example, the sound absorbing material may be slag wool, thin felt, or the like. Or, the rough surface can be formed by roughening a local area beside the sound-entering surface to form an uneven surface so as to reduce sound wave reflection.

In a second aspect, embodiments of the present application further provide a sound pickup apparatus, where at least one microphone may be mounted, and the sound pickup apparatus includes at least one component. At least one component is arranged beside at least one sound entering surface of at least one microphone, and at least one hollow-out area or rough surface corresponding to each sound entering surface is arranged on the at least one component so as to reduce reflected sound waves entering the sound entering surfaces.

In one embodiment, the sound pickup device at least comprises a supporting piece for supporting at least one microphone, and the supporting piece is provided with a hollow area or a rough surface. For example, a microphone inside the microphone is generally provided with a corresponding supporting structure or a fixing frame for supporting or fixing the microphone, and a protective casing is generally arranged outside the microphone, so that an area of the corresponding supporting structure or the fixing frame, which is located beside the sound entrance surface, can be hollowed out, or a thin layer made of a sound absorption material is adhered, and a person skilled in the art can specifically set the position, specific shape and specific size of the hollowed-out area or rough surface according to the actual design requirement of a product.

It should be noted that, when the area beside the sound-entering surface on some functional components beside the sound-entering surface is a necessary structure for realizing the corresponding function, the hollow-out area should be avoided, for example, when the circuit board is used as a support, the specific circuit is arranged in the corresponding area beside the sound-entering surface, and the hollow-out area should not be provided, that is, the functional area should be avoided by the arrangement of the hollow-out area.

In one embodiment, a plurality of microphones may be installed inside the sound pickup apparatus, each microphone is a directional microphone and includes a first sound entering surface and a second sound entering surface, the first sound entering surface is a front surface for the sound wave signal entering in the target direction, and the second sound entering surface is a back surface disposed opposite to the first sound entering surface. And at least one component positioned beside the second sound incident surface is provided with a hollow area or a rough surface.

In the embodiments of the present specification, the microphone may be a moving coil type, a capacitor type, an electret, or a silicon micro microphone, a laser microphone, or the like.

The first sound incoming surface of the microphone is the front surface or the front surface of the directional microphone, namely the sound incoming surface facing the target sound pickup range; and the second sound entry face, i.e. the back or rear face of the directional microphone. In the embodiment of the present disclosure, the first sound incident surface is a sound incident surface of the microphone facing the external direction of the sound pickup apparatus, so as to facilitate the entry of an external sound wave signal, and the second sound incident surface is a sound incident surface of the microphone facing the internal direction of the sound pickup apparatus.

In many sound pickup apparatuses, the structural component near the first sound entrance surface is a mesh structure, and includes a plurality of sound entrance holes, so that the reflected sound waves generated around the first sound entrance surface are less likely to occur. Therefore, in some embodiments of the present disclosure, a corresponding hollow area or rough surface may be provided only on the second sound incident surface, i.e., the back surface, of the microphone. Of course, in another part of embodiments, a corresponding hollow area may also be disposed on the front surface of the microphone, depending on the interference degree of the generated reflected sound wave.

For example, referring to fig. 3, a plurality of microphones 11 may be installed in a sound pickup apparatus, the sound pickup apparatus is provided with a supporting plate 12 for supporting the plurality of microphones 11, the plurality of microphones 11 are uniformly distributed along an edge of the supporting plate 12, a plane of a sound entrance surface of each microphone 11 is perpendicular to a plane of the supporting plate 12, and a geometric center of each microphone 11 is located above the supporting plate 12. Wherein each microphone 11 has a first sound entry surface 111 and a second sound entry surface 112.

Referring to fig. 4, the supporting plate 12 is a circular supporting plate, and a plurality of hollow areas 121 corresponding to the number of the microphones 11 are disposed along the edge of the supporting plate. In the following description, the hollow-out area is taken as an example for explanation, and the shape, the arrangement position, and the like of the rough surface are referred to the hollow-out area, which is not described in detail herein.

In the embodiment of the present specification, the size of the hollow area is adapted to the wavelength range of the target sound wave signal of the sound pickup device. Whether reflection can be generated or not is related to the wavelength of the sound wave signal, when the wavelength is longer, the transmission can not be generated in the local space of the sound pickup device generally, and a hollow area does not need to be arranged, and the size of the hollow area is ensured to prevent the sound wave reflection in the target sound frequency range. For example, for a conference telephone device, it needs to collect the speaking voice of people in a conference room, and then the size of the hollow area in the conference telephone should be determined according to the speaking frequency of human (i.e. the normal speaking frequency of people).

It should be noted that in the embodiment of the sound pickup apparatus having a plurality of microphones, the front sides of the different microphones may face different directions, and the back sides of the different microphones may face different directions, for example, in the layout shown in fig. 3, the second sound incident surfaces of the plurality of microphones 11 all face the center of the supporting plate, and the first sound incident surfaces of the respective microphones 11 all face the outside of the sound pickup apparatus, for two microphones symmetrically distributed around the center of the supporting plate, the first sound incident surfaces face opposite directions, and the second sound incident surfaces face opposite directions, that is, in the embodiment of the present specification, the fixed directions in which the front sides and the back sides of the microphones can not be distinguished in spatial orientation are taken as reference. In general, the front surface of the directional microphone may be the first sound incident surface in the embodiment of the present specification, and the back surface of the directional microphone may be the second sound incident surface in the embodiment of the present specification.

For example, the heart-shaped directional microphone faces the heart-shaped head, i.e., the target direction of the sound pickup range is the front side, and the sound entrance surface facing the heart-shaped tail, i.e., the direction to be suppressed is the back side. For a bi-directional microphone, the front and back sides should be determined according to the position of the microphone in the sound pickup device, the sound entrance surface facing the inside of the sound pickup device is the back side, and the sound entrance surface facing the outside of the sound pickup device is the front side.

In some embodiments, for an omni-directional microphone having only one sound entrance surface, a hollowed-out area is provided on the component beside the one sound entrance surface.

Specifically, in one embodiment, the hollowed-out area 121 includes a first area 1211 and a second area 1212. The first region 1211 is used for embedding the microphone and is located right below the geometric center of the corresponding microphone, and the shape of the first region is adapted to the appearance shape of the microphone 11. And a second region 1212 located beside the corresponding sound entrance surface and communicating with the first region.

In this embodiment, the first region 1211 is configured to be hollowed out to mainly serve as a microphone embedding part and also to assist in reducing reflected sound waves. Also, the size of the second region 1212 should be adapted to the wavelength range of the target sound wave signal of the sound pickup apparatus.

Specifically, referring to fig. 5, in one embodiment, the first region 1211 is exemplarily shaped as a rectangle, and the second region 1212 is a region surrounded by an arc-shaped edge and a line segment having a length corresponding to a long side of the rectangle. The rectangular shape design of first district is for the appearance shape after with the microphone encapsulation cooperatees, and the second district sets up to the shape that the circular arc limit encloses, compares in other shapes and can furthest increase the fretwork area.

The shape of the hollow-out area shown in fig. 5 is only an example, and a person skilled in the art may adaptively set the hollow-out area according to different appearance shapes, for example, the hollow-out area may be an irregular shape matching with the appearance of the component, and the embodiments of the present disclosure are not specifically listed.

Referring to fig. 6, fig. 6 is a top view of the packaged microphone after being mounted on the supporting board 12, wherein only the package housing 13 can be shown from the top view of fig. 6.

In one embodiment, the supporting plate can be a PCB circuit board, and the PCB circuit board is located the bottom of sound pickup apparatus, namely in this specification embodiment, except setting up the fretwork district, still change the supporting plate of sound pickup apparatus bottom into the PCB circuit board, like this, both can reduce the sheltering from of PCB circuit board to the sound wave signal, can also play support and fixed action to the microphone based on the structural strength of PCB circuit board itself.

The above embodiments only take the supporting plate as an example, and the solutions disclosed in the present specification are exemplarily described, it is understood that the component that can be provided with the hollowed-out area in the embodiments of the present specification is not limited to the supporting plate, and can be any other type of component, for example, in some sound pickup devices, some structural components, such as LED lamps and the like, are provided above the side of the sound entrance surface of the microphone, and a hollowed-out small hole may be provided at a non-functional position in the LED lamp, and the embodiments of the present specification are not listed in sequence.

In one embodiment, the sound pickup apparatus further includes a housing including a top surface and a side wall, both the top surface and the side wall being provided with a plurality of sound inlet holes. For example, referring to fig. 6, the first sound entrance surface 111 of each microphone in fig. 6 is disposed next to the side wall 14, and the side wall 14 has a mesh structure, and each mesh corresponds to a sound entrance hole, so that a sound source signal from the external environment can smoothly enter the first sound entrance surface.

In addition, in the embodiment of the present specification, in the sound pickup apparatus, a distance between an apparent bottom end point of each of the at least one microphone and a plane defined by the bottom end point of the side wall is greater than a preset reflection distance, and the reflection distance is adapted to a wavelength range of a target sound wave signal of the sound pickup apparatus. That is, besides the support plate is provided with the hollow-out area, a certain distance should be kept between the microphone and the plane below the support plate, so as to prevent the sound wave from being reflected by the plane below the support plate after passing through the hollow-out area and continuing to be reflected into the sound surface. For example, conference telephone equipment is generally placed on a table top, the table top is arranged below the supporting plate, the distance between the table top and the bottom end of the microphone is larger than a preset distance, and if the distance is too short, reflected sound waves can be generated continuously. More specifically, in the product configuration shown in fig. 2, the height of the legs 15 should be greater than a predetermined distance. The specific preset distance is specifically set by a person skilled in the art according to the technical scheme disclosed in the specification, and the specification is not listed again.

Wherein the legs 15 and the side walls 14 may be integrally formed.

The assembly or the sound pickup apparatus provided in the above embodiments of the present specification may be applied not only to conference telephone equipment, but also to recording pens, mobile phones, televisions, Internet of Things (IOT) equipment, and the like.

In a third aspect, the present specification also provides a conference telephone apparatus, which includes the assembly or sound pickup device as described in any one of the above embodiments, for example, the conference telephone apparatus may be a product for multi-party conference telephone.

In a fourth aspect, the embodiments of the present disclosure further provide a terminal device, such as a bank counter terminal, a POS machine, etc., supporting voice recognition and collection, including the assembly or sound pickup apparatus according to any one of the above embodiments.

In a fifth aspect, embodiments of the present specification further provide a sound recording apparatus, such as a sound recording pen or a sound recorder, including the assembly or the sound pickup apparatus according to any one of the above embodiments.

In a sixth aspect, embodiments of the present specification further provide a portable wearable device supporting voice recognition, voice call, and/or video call, including the assembly or sound pickup apparatus as described in any one of the above embodiments. For example, the portable wearable device may be any one of a headset, a telephone watch, a smart bracelet, a smart ring, a smart sports shoe, a smart collar, a necklace, smart glasses, a smart helmet, and the like.

In a seventh aspect, this specification embodiment also provides an IoT (Internet of Things) device that supports at least voice capture, the IoT device including the component or the sound pickup apparatus as described in any one of the above embodiments. For example, the IoT devices may include smart home devices, wearable devices, travel devices, and the like.

In an eighth aspect, an embodiment of the present specification further provides a smart home device, where the smart home device at least supports voice collection, and includes the component according to the first aspect or the sound pickup apparatus according to any one of the second aspects. For example, smart home devices may include large appliances (e.g., televisions, refrigerators, washing machines, air conditioners, etc.), small appliances (e.g., electric pressure cookers, induction cookers, water dispensers, vacuum cleaners, routers, floor sweeping robots, fans, air cleaners, curtains, clothes hangers, etc.), and personal care and health related devices such as hair dryers, shavers, sphygmomanometers, and electrical appliance infrastructure and safety related devices such as lighting, door locks, cameras, and socket switches.

In a ninth aspect, embodiments of the present specification further provide an trip device, which supports at least voice collection, and includes the component according to the first aspect or the sound pickup apparatus according to any one of the second aspects. For example, the travel devices may include bicycles (including sharing bicycles), electric vehicles, balance cars, scooters, event recorders, vehicle air purifiers, and the like.

For example, the components or sound pickup apparatus provided in the above embodiments may also be integrated on an integrated circuit inside a television, or the components or sound pickup apparatus provided in the above embodiments may also be disposed in various remote controllers supporting voice control.

The above-mentioned embodiments, objects, technical solutions and advantages of the embodiments disclosed in the present specification are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the embodiments disclosed in the present specification, and are not intended to limit the scope of the embodiments disclosed in the present specification, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments disclosed in the present specification should be included in the scope of the embodiments disclosed in the present specification.

Claims (23)

1. An assembly for use in a sound pick-up apparatus for housing at least one microphone;

when the component is arranged on the pickup device, the component is positioned beside at least one sound entering surface of the at least one microphone;

the assembly is provided with at least one hollow area or rough surface respectively corresponding to the at least one sound entering surface, and the at least one hollow area or rough surface is used for reducing reflected sound waves entering the at least one sound entering surface.

2. A sound pickup apparatus comprising at least one component for housing at least one microphone;

the at least one component is positioned beside the at least one sound entrance surface of the at least one microphone;

at least one hollow-out area or rough surface corresponding to the at least one sound entrance surface is arranged on the at least one component, and the at least one hollow-out area or rough surface is used for reducing reflected sound waves entering the at least one sound entrance surface.

3. The sound pickup device as claimed in claim 2, wherein the roughened surface is a thin layer of sound absorbing material adhered to the at least one component.

4. The sound pickup device according to claim 2, wherein the rough surface is a concave-convex surface obtained by processing a local area of the at least one component located beside the at least one sound inlet surface.

5. The pickup device of claim 2, wherein the at least one component includes a support for supporting the at least one microphone.

6. The sound pickup apparatus according to claim 2, wherein each of the at least one microphone includes a first sound entrance surface and a second sound entrance surface, the first sound entrance surface being a front surface for entrance of an acoustic wave signal in a target direction, and the second sound entrance surface being a rear surface disposed opposite to the first sound entrance surface;

and a hollow area or a rough surface corresponding to the second sound entering surface is arranged on at least one component.

7. The sound pickup apparatus according to claim 2, wherein the number of microphones is plural;

the at least one component includes a support plate for supporting a plurality of microphones;

the microphones are uniformly distributed along the edge of the supporting plate, and the plane of the sound inlet surface of each microphone is perpendicular to the plane of the supporting plate.

8. The sound pickup device according to claim 7, wherein a geometric center of each microphone is located above the support plate.

9. The sound pickup device according to claim 2, wherein the size of the hollow area is adapted to a wavelength range of a target sound wave signal of the sound pickup device.

10. The sound pickup device according to claim 2, wherein the hollowed-out area includes a first area and a second area;

the first area is positioned below the geometric center of the microphone to which the corresponding sound entering surface belongs and is used for embedding the microphone;

and the second zone is positioned beside the corresponding sound entering surface and communicated with the first zone.

11. The sound pickup device according to claim 10, wherein a shape of the first region is adapted to an appearance shape of the microphone.

12. The sound pickup device according to claim 10, wherein a size of the second area is adapted to a wavelength range of a target acoustic wave signal of the sound pickup device.

13. The sound pickup device according to claim 10, wherein the first area is rectangular in shape, and the second area is an area surrounded by an arc-shaped side and a line segment having a length corresponding to a long side of the rectangle.

14. The sound pickup device according to claim 2, wherein the at least one component includes a PCB circuit board, and the PCB circuit board is provided with at least one hollow area or rough surface corresponding to the at least one sound incident surface.

15. The pickup device of claim 14, wherein the PCB circuit board is located at a bottom of the pickup device.

16. The pickup of claim 2, wherein the pickup further comprises a housing, the housing comprising a top surface and a side wall;

the top surface and the side wall are both provided with a plurality of sound inlet holes;

the distance between the appearance bottom end point of each microphone in the at least one microphone and the plane determined by the bottom end point of the side wall is larger than a preset reflection distance, and the reflection distance is matched with the wavelength range of a target sound wave signal of the pickup device.

17. A conference call device, wherein the conference call device comprises an assembly according to claim 1 or a sound pick-up apparatus according to any one of claims 2-16.

18. A terminal device, wherein the terminal device comprises an assembly according to claim 1 or a sound pick-up apparatus according to any of claims 2-16.

19. An audio recording apparatus, wherein the audio recording apparatus comprises an assembly according to claim 1 or a sound pick-up according to any of claims 2-16.

20. A portable wearable device, wherein the portable wearable device supports voice recognition, voice calls, and/or video calls, comprising the assembly of claim 1 or the sound pickup apparatus of any of claims 2-16.

21. An IoT device, wherein the IoT device supports at least voice capture, comprising the component of claim 1 or the sound pickup apparatus of any of claims 2-16.

22. An intelligent household device, wherein the intelligent household device at least supports voice collection, and comprises the assembly according to claim 1 or the sound pickup device according to any one of claims 2 to 16.

23. An apparatus for transportation, wherein the apparatus for transportation supports at least voice collection, and comprises the assembly of claim 1 or the sound pickup device of any one of claims 2-16.

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