CN114143643B - Adjustable pickup device based on double microphone arrays - Google Patents
Adjustable pickup device based on double microphone arrays Download PDFInfo
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- CN114143643B CN114143643B CN202111499373.4A CN202111499373A CN114143643B CN 114143643 B CN114143643 B CN 114143643B CN 202111499373 A CN202111499373 A CN 202111499373A CN 114143643 B CN114143643 B CN 114143643B
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- 238000003491 array Methods 0.000 title claims abstract description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 12
- 241001330002 Bambuseae Species 0.000 claims description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 12
- 239000011425 bamboo Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 230000009977 dual effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 22
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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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
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
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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
- H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
-
- 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
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Quality & Reliability (AREA)
- Computational Linguistics (AREA)
- Multimedia (AREA)
- Public Health (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to the technical field of microphones, in particular to an adjustable pickup device based on a double-microphone array, which comprises a supporting rod, wherein the top of the supporting rod is fixedly connected with a mounting cylinder, two symmetrically arranged microphone bodies are fixedly sleeved at two ends of the mounting cylinder, the bottom of the mounting cylinder is fixedly connected with a supporting block, the upper side wall of the supporting block is fixedly connected with a mounting plate, the upper side wall of the mounting plate is connected with a moving rod through a moving mechanism, and two symmetrically arranged pickup bodies are fixedly connected at two ends of the moving rod. The beneficial effects of the invention are as follows: this pickup equipment with adjustable based on two microphone arrays is convenient for select corresponding microphone body according to the position of generating source, simultaneously, strengthens the main pickup effect of selecting back microphone body department, avoids another microphone body department to the pickup effect of murmur to, can clear up impurity such as the dust in the microphone body, make its result of use better.
Description
Technical Field
The invention relates to the technical field of microphones, in particular to adjustable pickup equipment based on a double-microphone array.
Background
The existing microphone pickup is generally single microphone pickup, can only be applied to single people, and has relative limitation when applied to occasions such as conferences. The pick-up microphone of the existing single microphone is a straight heart-shaped microphone, the sensitivity of the front end of the microphone is strongest, and the sensitivity of the rear end of the microphone is weakest, so that redundant environmental noise is isolated, and the effect of eliminating echo is better than that of an omnidirectional microphone. While the omni-directional microphone is an omni-directional microphone for different directions, it is unavoidable to use echo generated by a broadcast loudspeaker, and a bi-directional microphone (i.e., an adjustable microphone based on a dual microphone array).
However, when the adjustable pickup device based on the double microphone arrays is used, the corresponding microphone positions are not convenient to select according to the positions of the generation sources, so that the pickup effect is poor, and more noise exists in the use process, so that the use effect is influenced.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the adjustable pickup device based on the double-microphone array, which solves the problems that when the conventional adjustable pickup device based on the double-microphone array is used, the corresponding microphone position is inconvenient to select according to the position of a generating source, so that the pickup effect is poor, and more noise exists in the use process, so that the use effect is influenced.
The technical scheme for solving the technical problems is as follows: the utility model provides a pickup equipment with adjustable based on two microphone arrays, includes the bracing piece, the top fixedly connected with installation section of thick bamboo of bracing piece, and the fixed cover in both ends of installation section of thick bamboo is equipped with the microphone body that two symmetries set up, the bottom fixedly connected with supporting shoe of installation section of thick bamboo, and the last lateral wall fixedly connected with mounting panel of supporting shoe, the last lateral wall of mounting panel is connected with the movable rod through moving mechanism, and the pickup body that two symmetries of both ends fixedly connected with of movable rod set up, be provided with exhaust mechanism in the installation section of thick bamboo.
The beneficial effects of the invention are as follows:
1. This kind of pickup equipment with adjustable based on two microphone arrays detects the decibel of two microphone body departments through setting up moving mechanism etc. through two decibel sensors, can judge which microphone body is close to the generating source, then, start first motor, the rotation of first motor drives the rotation of threaded rod, thereby drive movable rod and pickup body and remove along the dead lever, carry out real-time regulation to the position of two pickup bodies, make one of them pickup body be close to the microphone body that is close to the generating source position, another pickup body then keep away from another microphone body, thereby be convenient for select corresponding microphone body according to the position of generating source, simultaneously, reduce the noise of another microphone body department, make pickup and result of use better.
2. This kind of pickup equipment with adjustable based on two microphone arrays through setting up exhaust mechanism, when the decibel sensor detects that a certain microphone body is close to the generating source, starts the second motor, the rotation of second motor drives the rotation of pivot and commentaries on classics fan to make wind discharge to another microphone body department from this microphone body department, because during down wind, the propagation of acoustic wave can be strengthened to wind-force, resistance that wind-force became the sound wave when against wind, thereby the pickup effect of the microphone body that the reinforcing is close to the generating source weakens the noise of another microphone body department, make pickup and result of use better, and when airing exhaust, can clear up impurity such as the dust in the microphone body, make its result of use better.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the moving mechanism comprises fixed blocks which are fixedly connected with the upper side wall of the mounting plate and symmetrically arranged, the opposite side walls of the two fixed blocks are rotationally connected with threaded rods, the side walls of the threaded rods are in threaded connection with moving blocks, the moving blocks are fixed with the side walls of the moving rods, the side walls of the moving blocks are inserted with the fixed rods, and the two ends of the fixed rods are respectively fixed with the side walls of the fixed blocks.
Adopt the beneficial effect of above-mentioned further scheme, the rotation of threaded rod drives movable rod and adapter body and removes along the dead lever to carry out real-time adjustment to the position of two adapter bodies, make one of them adapter body be close to the microphone body that takes place the source position to being close to, another adapter body then keeps away from another microphone body, thereby be convenient for select corresponding microphone body according to the position of generating the source, simultaneously, reduce the noise of another microphone body department, make pickup and result of use better.
Further, one of the side walls of the fixed block is fixedly connected with a first motor, and the output end of the first motor penetrates through the side wall of the fixed block and is fixed with one end of the threaded rod.
The technical scheme has the beneficial effects that the first motor is started, and the rotation of the first motor drives the rotation of the threaded rod.
Further, the mounting panel is close to the decibel sensor that two symmetries set up of lateral wall fixedly connected with of adapter body, the last lateral wall fixedly connected with controller of mounting panel, and first motor and decibel sensor all with controller electric connection.
The further scheme has the beneficial effects that the decibels at the two microphone bodies are detected through the two decibel sensors, so that which microphone body is close to the generating source can be judged, and then the first motor is controlled to be started through the controller.
Further, exhaust mechanism includes the L shaped plate of fixed connection lateral wall on the mounting panel, and the lateral wall fixedly connected with work box of L shaped plate, the exhaust pipe that two relative lateral wall fixedly connected with of work box set up symmetrically, and the other end of exhaust pipe runs through to this internal, be provided with drive assembly in the work box.
The beneficial effect of adopting above-mentioned further scheme is, when the decibel sensor detects that a certain microphone body is close to the generating source, start the second motor, the rotation of second motor drives the rotation of pivot and commentaries on classics fan, thereby make wind discharge this microphone body department to another microphone body department, because in the time of down wind, the propagation of acoustic wave can be strengthened to wind-force, when the upwind, wind-force becomes the resistance of acoustic wave, thereby the pickup effect of the microphone body that is close to the generating source is strengthened, weaken the noise of another microphone body department, make pickup and result of use better, and, when airing exhaust, can clear up impurity such as dust in the microphone body, make its result of use better.
Further, the drive assembly is including setting up the commentaries on classics fan in the work box, and changeing the side wall rotation connection of fan and work box through the pivot, the last lateral wall fixedly connected with second motor of L shaped plate, and the output of second motor runs through the last lateral wall of work box and is fixed with the upper end of pivot, second motor and controller electric connection.
The adoption of the further scheme has the beneficial effects that the second motor is started, and the rotation of the second motor drives the rotation of the rotating shaft and the rotating fan, so that wind is discharged from the microphone body to the other microphone body.
Further, the other end of the exhaust pipe is fixedly connected with an annular wind collecting cover, and the wind collecting cover is arranged in the microphone body.
The beneficial effect of adopting above-mentioned further scheme is for exhaust effect is better.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the mounting cylinder of the present invention;
FIG. 3 is a schematic view of a part of the structure of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 2A;
FIG. 5 is an enlarged schematic view of the structure shown at B in FIG. 3;
Fig. 6 is an enlarged schematic view of the structure at C in fig. 5.
In the drawings, the list of components represented by the various numbers is as follows:
1. A support rod; 2. a mounting cylinder; 3. a microphone body; 4. a support block; 5. a mounting plate; 601. a fixed block; 602. a threaded rod; 603. a fixed rod; 604. a moving block; 701. an L-shaped plate; 702. a working box; 703. an exhaust pipe; 801. a rotating shaft; 802. rotating the fan; 803. a second motor; 9. a moving rod; 10. a decibel sensor; 11. a first motor; 12. a pickup body; 13. a controller; 14. and a wind collecting cover.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
The existing microphone pickup is generally single microphone pickup, can only be applied to single people, and has relative limitation when applied to occasions such as conferences. The pick-up microphone of the existing single microphone is a straight heart-shaped microphone, the sensitivity of the front end of the microphone is strongest, and the sensitivity of the rear end of the microphone is weakest, so that redundant environmental noise is isolated, and the effect of eliminating echo is better than that of an omnidirectional microphone. While the omni-directional microphone is an omni-directional microphone for different directions, it is unavoidable to use echo generated by a broadcast loudspeaker, and a bi-directional microphone (i.e., an adjustable microphone based on a dual microphone array).
The inventor has conducted intensive investigation and research on the use process of the adjustable pickup device based on the dual-microphone array, and found that: when the existing adjustable pickup device based on the double microphone arrays is used, the corresponding microphone positions are not convenient to select according to the positions of the generation sources, so that the pickup effect is poor, and more noise exists in the use process, so that the use effect is influenced.
The above problems have not been reported in the art, and the inventors have found the above problems and devised the present technical solution.
The present invention provides the following preferred embodiments
As shown in fig. 1-6, an adjustable pickup device based on two microphone arrays, including bracing piece 1, the top fixedly connected with installation section of thick bamboo 2 of bracing piece 1, and the fixed cover in both ends of installation section of thick bamboo 2 is equipped with microphone body 3 that two symmetries set up, the bottom fixedly connected with supporting shoe 4 of installation section of thick bamboo 2, and the last lateral wall fixedly connected with mounting panel 5 of supporting shoe 4, the last lateral wall of mounting panel 5 is connected with movable rod 9 through moving mechanism, and the both ends fixedly connected with two symmetrical pickup body 12 that set up of movable rod 9, be provided with exhaust mechanism in the installation section of thick bamboo 2, be convenient for select corresponding microphone body 3 according to the position of generating source, simultaneously, the main pickup effect of microphone body 3 department after the reinforcing is selected, and avoid the pickup effect of another microphone body 3 department to the noise, make pickup and result of use better.
In this embodiment, as shown in fig. 4, the moving mechanism includes two symmetrically disposed fixing blocks 601 fixedly connected with the upper side wall of the mounting plate 5, and the opposite side walls of the two fixing blocks 601 are rotationally connected with a threaded rod 602, the side wall of the threaded rod 602 is in threaded connection with a moving block 604, and the moving block 604 is fixed with the side wall of the moving rod 9, the side wall of the moving block 604 is inserted with a fixing rod 603, and two ends of the fixing rod 603 are respectively fixed with the side wall of the fixing block 601, the rotation of the threaded rod 602 drives the moving rod 9 and the pickup body 12 to move along the fixing rod 603, so that the positions of the two pickup bodies 12 are adjusted in real time, one of the pickup bodies 12 approaches to the microphone body 3 close to the position of the generation source, and the other pickup body 12 is far away from the other microphone body 3, so that the corresponding microphone body 3 is conveniently selected according to the position of the generation source, and meanwhile, the noise at the other microphone body 3 is reduced, and the using effect is better.
In this embodiment, as shown in fig. 4, the side wall of one of the fixing blocks 601 is fixedly connected with the first motor 11, and the output end of the first motor 11 penetrates through the side wall of the fixing block 601 and is fixed with one end of the threaded rod 602, the first motor 11 is started, and the rotation of the first motor 11 drives the threaded rod 602 to rotate.
In this embodiment, as shown in fig. 5, two symmetrically arranged db sensors 10 are fixedly connected to the side wall of the mounting board 5 near the pickup body 12, the db sensor 10 is of a model WS600A, the upper side wall of the mounting board 5 is fixedly connected with a controller 13, the controller 13 is of a model KY02S, the first motor 11 and the db sensor 10 are electrically connected with the controller 13, and the db at the two microphone bodies 3 is detected by the two db sensors 10, so that which microphone body 3 is near the generation source can be determined, and then the controller 13 controls the first motor 11 to start.
In this embodiment, as shown in fig. 5 and 6, the exhaust mechanism includes an L-shaped plate 701 fixedly connected to the upper side wall of the mounting plate 5, and the side wall of the L-shaped plate 701 is fixedly connected with a working box 702, two opposite side walls of the working box 702 are fixedly connected with two exhaust pipes 703 symmetrically arranged, and the other ends of the exhaust pipes 703 penetrate into the microphone body 3, a driving component is disposed in the working box 702, when the decibel sensor 10 detects that a certain microphone body 3 approaches to the generating source, the second motor 803 is started, and the rotation of the second motor 803 drives the rotation shaft 801 and the rotation fan 802, so that the wind is exhausted from the microphone body 3 to another microphone body 3.
In this embodiment, as shown in fig. 6, the driving assembly includes a rotating fan 802 disposed in the working box 702, and the rotating fan 802 is rotationally connected with a side wall of the working box 702 through a rotating shaft 801, an upper side wall of the L-shaped plate 701 is fixedly connected with a second motor 803, an output end of the second motor 803 penetrates through an upper side wall of the working box 702 and is fixed with an upper end of the rotating shaft 801, the second motor 803 is electrically connected with the controller 13, the second motor 803 is started, and rotation of the second motor 803 drives rotation of the rotating shaft 801 and the rotating fan 802, so that wind is discharged from the microphone body 3 to another microphone body 3.
In this embodiment, as shown in fig. 5, the other end of the exhaust duct 703 is fixedly connected with a circular air collecting hood 14, and the air collecting hood 14 is disposed in the microphone body 3, so that the exhaust effect is better.
The specific working process of the invention is as follows:
Firstly, detecting decibels at two microphone bodies 3 through two decibel sensors 10, judging which microphone body 3 is close to a generating source, then starting a first motor 11, and driving a threaded rod 602 to rotate by rotation of the first motor 11 so as to drive a movable rod 9 and a pickup body 12 to move along a fixed rod 603, and adjusting the positions of the two pickup bodies 12 in real time, so that one pickup body 12 is close to the microphone body 3 close to the generating source, and the other pickup body 12 is far away from the other microphone body 3, thereby being convenient for selecting the corresponding microphone body 3 according to the position of the generating source, and reducing noise at the other microphone body 3, so that the pickup and using effects are better;
When the decibel sensor 10 detects that one microphone body 3 is close to the generation source, the second motor 803 is started, and the rotation of the second motor 803 drives the rotation shaft 801 and the rotation fan 802 to rotate, so that wind is discharged from the microphone body 3 to the other microphone body 3.
To sum up: the invention has the advantages of conveniently selecting the corresponding microphone body 3 according to the position of the generating source, enhancing the main pickup effect of the selected microphone body 3, avoiding the pickup effect of the other microphone body 3 on noise, cleaning the dust and other impurities in the microphone body 3, leading the use effect to be better and leading the pickup and use effects to be better.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The utility model provides a pickup equipment with adjustable based on two microphone arrays, includes bracing piece (1), its characterized in that, the top fixedly connected with of bracing piece (1) installs a section of thick bamboo (2), and the fixed cover in both ends of an installation section of thick bamboo (2) is equipped with microphone body (3) that two symmetries set up, the bottom fixedly connected with supporting shoe (4) of an installation section of thick bamboo (2), and the upper side wall fixedly connected with mounting panel (5) of supporting shoe (4), the upper side wall of mounting panel (5) is connected with movable rod (9) through moving mechanism, and the both ends fixedly connected with two pickup body (12) that the symmetry set up of movable rod (9), be provided with exhaust mechanism in the installation section of thick bamboo (2);
The exhaust mechanism comprises an L-shaped plate (701) fixedly connected to the upper side wall of the mounting plate (5), a working box (702) is fixedly connected to the side wall of the L-shaped plate (701), two exhaust pipes (703) symmetrically arranged are fixedly connected to two opposite side walls of the working box (702), the other ends of the exhaust pipes (703) penetrate into the microphone body (3), and a driving assembly is arranged in the working box (702).
2. The adjustable pickup device based on the dual microphone array according to claim 1, wherein the moving mechanism comprises two symmetrically arranged fixed blocks (601) fixedly connected with the upper side wall of the mounting plate (5), the opposite side walls of the two fixed blocks (601) are rotatably connected with threaded rods (602), the side walls of the threaded rods (602) are in threaded connection with moving blocks (604), the moving blocks (604) are fixed with the side walls of the moving rods (9), the fixed rods (603) are inserted into the side walls of the moving blocks (604), and two ends of the fixed rods (603) are fixed with the side walls of the fixed blocks (601) respectively.
3. The adjustable pickup apparatus as claimed in claim 2, wherein a side wall of one of the fixed blocks (601) is fixedly connected with a first motor (11), and an output end of the first motor (11) penetrates through the side wall of the fixed block (601) and is fixed with one end of the threaded rod (602).
4. The adjustable pickup device based on the dual microphone array according to claim 3, wherein the mounting plate (5) is fixedly connected with two symmetrically arranged decibel sensors (10) near the side wall of the pickup body (12), the upper side wall of the mounting plate (5) is fixedly connected with a controller (13), and the first motor (11) and the decibel sensors (10) are electrically connected with the controller (13).
5. The adjustable pickup device based on the dual microphone array according to claim 1, wherein the driving assembly comprises a rotating fan (802) arranged in the working box (702), the rotating fan (802) is rotatably connected with the side wall of the working box (702) through a rotating shaft (801), the upper side wall of the L-shaped plate (701) is fixedly connected with a second motor (803), and the output end of the second motor (803) penetrates through the upper side wall of the working box (702) and is fixed with the upper end of the rotating shaft (801), and the second motor (803) is electrically connected with the controller (13).
6. The adjustable pickup apparatus as claimed in claim 5, wherein the other end of each exhaust duct (703) is fixedly connected with a circular air collecting cover (14), and the air collecting cover (14) is disposed in the microphone body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499373.4A CN114143643B (en) | 2021-12-09 | 2021-12-09 | Adjustable pickup device based on double microphone arrays |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499373.4A CN114143643B (en) | 2021-12-09 | 2021-12-09 | Adjustable pickup device based on double microphone arrays |
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| CN114143643A CN114143643A (en) | 2022-03-04 |
| CN114143643B true CN114143643B (en) | 2024-06-07 |
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| CN202111499373.4A Active CN114143643B (en) | 2021-12-09 | 2021-12-09 | Adjustable pickup device based on double microphone arrays |
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| CN112489672A (en) * | 2020-10-23 | 2021-03-12 | 盘正荣 | Virtual sound insulation communication system and method |
| CN214256550U (en) * | 2021-02-08 | 2021-09-21 | 厦门钰仟钰科技有限公司 | Gun type microphone |
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| CN114143643A (en) | 2022-03-04 |
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