CN113395632A - Multi-path array microphone - Google Patents
Multi-path array microphone Download PDFInfo
- Publication number
- CN113395632A CN113395632A CN202110703792.9A CN202110703792A CN113395632A CN 113395632 A CN113395632 A CN 113395632A CN 202110703792 A CN202110703792 A CN 202110703792A CN 113395632 A CN113395632 A CN 113395632A
- Authority
- CN
- China
- Prior art keywords
- positioning
- hole
- fixing
- arm
- microphone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/405—Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention relates to a multi-path array microphone comprising: the base, a plurality of locating arms, a plurality of reference columns, a plurality of microphone, emission window, a plurality of locating arms all are fixed in the base, are located the coplanar, and the center of extension line direction all directional base, the one end and the terminal fixed connection of corresponding locating arm of every reference column, and all perpendicular to plane, at least one reference column have with other reference columns different height, the other end of every reference column is equipped with the microphone, a plurality of microphone constitution microphone array, the shaft surface of reference column and the position that the microphone is next to are equipped with emission window, have laser emitter in the emission window. The invention can acquire and calibrate the audio frequency of a specific stereo area, particularly the audio frequency of the stereo area taking the artificial head as a standard, can prompt whether the position of the microphone has deviation by utilizing laser, can realize accurate rotation by 10 degrees by utilizing the rotation limiting structure to perform secondary acquisition and calibration, and can accurately simulate and calibrate the artificial head.
Description
Technical Field
The invention relates to the technical field of sound processing jigs, in particular to a multipath array microphone.
Background
Generally, an array microphone is formed by a plurality of microphones in a regular array arrangement, such as a star shape, a field shape, a meter shape and the like, and can only be used for analog plane sound collection. In fact, the sound obtained by the human ear is obtained by various factors, and the final sound wave form of the sound wave after the sound wave is surrounded on the head, the shoulder, the skull, the auricle and the like is the sound heard by the human ear. If the common plane microphone is directly used for collecting sound, the recorded original sound is not processed, and is not consistent with stereo sound heard by human ears, and if the sound is collected, stereo sound processed by a head can be recorded, so that the stereo sound heard by the human ears can be collected, and therefore, an artificial head is generated, and stereo sound collection is carried out by utilizing the artificial head.
The existing artificial head calibration microphone arrays are arranged on a plane, and the artificial heads cannot be accurately simulated and calibrated.
Disclosure of Invention
The invention discloses a multipath array microphone, which aims to solve the technical problems in the prior art and is used for acquiring and calibrating the audio frequency of a specific stereo area, in particular to the audio frequency of the stereo area taking an artificial head as a standard.
The invention adopts the following technical scheme: a multi-way array microphone comprising:
the base is disc-shaped;
the positioning arms are all fixed on the base, the positioning arms are all located on the same plane, and the extension line directions of the positioning arms point to the disc-shaped center of the base;
one end of each positioning column is fixedly connected with the tail end of the corresponding positioning arm, the positioning columns are perpendicular to the plane, and at least one positioning column has a height different from that of other positioning columns;
the microphones form a microphone array, and each microphone is arranged at the other end of the corresponding positioning column;
the outer surface of the column body of at least one positioning column is provided with an emission window, the emission window is closely adjacent to the microphone, a laser emitter is arranged in the emission window, and a light beam emitted by the laser emitter points to the axis of the disc-shaped center of the base.
As a preferred technical scheme, the number of the positioning arms is 8, and the positioning arms are respectively a first positioning arm, a second positioning arm, a third positioning arm, a fourth positioning arm, a fifth positioning arm, a sixth positioning arm, a seventh positioning arm and an eighth positioning arm which are sequentially fixed on the base;
the number of the positioning columns is 8, the positioning columns are respectively a first positioning column, a second positioning column, a third positioning column, a fourth positioning column, a fifth positioning column, a sixth positioning column, a seventh positioning column and an eighth positioning column, the positioning columns are respectively vertically fixed with the tail ends of the corresponding positioning arms, and the positioning columns are located on the same side of the positioning arms.
As a preferred technical solution, an included angle between the first positioning arm and the second positioning arm is 45 degrees, an included angle between the second positioning arm and the third positioning arm is 45 degrees, an included angle between the third positioning arm and the fourth positioning arm is 19.99 degrees, an included angle between the fourth positioning arm and the fifth positioning arm is 25 degrees, an included angle between the fifth positioning arm and the sixth positioning arm is 19.99 degrees, an included angle between the sixth positioning arm and the seventh positioning arm is 25 degrees, and an included angle between the seventh positioning arm and the eighth positioning arm is 25 degrees.
As a preferred technical solution, the height of the first positioning column is 55 mm, the heights of the second positioning column, the third positioning column and the eighth positioning column are 70 mm, the heights of the fourth positioning column, the sixth positioning column and the seventh positioning column are 112 mm, and the height of the fifth positioning column is 100 mm.
As a preferred technical solution, the base includes:
the bottom surface of the chassis is provided with a first fixing through hole, the first fixing through hole is positioned in the center of the chassis, the positioning arms are all fixed on the chassis and are positioned on the same plane, and the extension line directions of the positioning arms point to the disc-shaped center of the chassis;
the bottom cover is provided with a second fixing through hole, the second fixing through hole is positioned in the center of the bottom cover, and the bottom cover is rotatably connected with the chassis;
the bottom cover is fixedly connected with the bottom cover, a third fixing through hole is formed in the axis direction of the fixing middle shaft, the center of the third fixing through hole is overlapped with the center of the second fixing through hole, the diameter of the third fixing through hole is the same as that of the second fixing through hole, and the fixing middle shaft can be inserted into the first fixing through hole.
The locking component can fix the part of the middle shaft protruding out of the chassis through locking, so that the chassis and the bottom cover are locked.
As a preferable technical scheme, the base is provided with a rotation limiting structure, and the rotation limiting structure is set to enable the chassis to rotate only in a range of 0-10 degrees relative to the bottom cover.
As a preferred technical scheme, the chassis is provided with an arc-shaped through groove, the bottom cover is provided with a positioning pin, the positioning pin can be inserted into the arc-shaped through groove, and the maximum moving range of the positioning pin in the arc-shaped through groove is set to enable the chassis to rotate by 0-10 degrees relative to the bottom cover.
As a preferred technical scheme, the chassis is provided with an arc through groove, the fixed middle shaft is in a boss shape, the protruding end of the fixed middle shaft can be inserted into the first fixed through hole, the non-protruding end of the fixed middle shaft is provided with a positioning pin which can be inserted into the arc through groove, and the maximum moving range of the positioning pin in the arc through groove is set to enable the chassis to rotate 0-10 degrees relative to the bottom cover.
As the preferred technical scheme, the side wall of the base is provided with the wire arranging holes.
As the preferred technical scheme, the base is provided with a through hole at the joint of each positioning arm, and the plurality of limiting arms and the plurality of limiting columns are of hollow tubular structures.
The technical scheme adopted by the invention can achieve the following beneficial effects: the multi-path array microphone provided by the invention can acquire and calibrate the audio frequency of a specific three-dimensional area according to the difference of the angles of the positioning arms and the difference of the lengths of the positioning columns, particularly the audio frequency of the three-dimensional area taking the artificial head as a standard, and can rotate 10 degrees to perform secondary acquisition and calibration due to the rotation limiting structure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof illustrate the present invention and do not constitute a limitation of the present invention. In the drawings:
fig. 1 is a perspective view of a multi-channel array microphone according to embodiments 1-3;
fig. 2 is a front view of the multi-path array microphone of the present embodiment 2;
fig. 3 is a bottom view of the multi-path array microphone of the present embodiment 2;
fig. 4 is a top view of the multi-path array microphone of this embodiment 2;
fig. 5 is a perspective view of a chassis of the multi-path array microphone of the present embodiment 2;
fig. 6 is a partially enlarged view of the chassis of the multi-path array microphone of this embodiment 2;
fig. 7 is a perspective view of the bottom cover of the multiple array microphone of this embodiment 2.
Description of reference numerals:
the base 1, the chassis 11, the bottom cover 12, the fixed middle shaft 13, the locking component 14, the first fixed through hole 111, the second fixed through hole 121, the third fixed through hole 131, the first positioning arm 21, the second positioning arm 22, the third positioning arm 23, the fourth positioning arm 24, the fifth positioning arm 25, the sixth positioning arm 26, the seventh positioning arm 27, the eighth positioning arm 28, the first positioning column 31, the second positioning column 32, the third positioning column 33, the fourth positioning column 34, the fifth positioning column 35, the sixth positioning column 36, the seventh positioning column 37, the eighth positioning column 38, the first emission window 361, the second emission window 381, the microphone 4, the positioning pin 5, the arc-shaped through groove 6, and the flat cable hole 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. In describing the present invention, it is noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.
Example 1
The embodiment provides a multichannel array microphone, as shown in fig. 1, the multichannel array microphone comprises a base 1, a plurality of positioning arms, a plurality of positioning columns, a plurality of microphones 4, the base is disc-shaped, the positioning arms are all fixed on the base, the positioning arms are all located on the same plane, the extension line directions of the positioning arms all point to the disc-shaped center of the base, one end of each positioning column is fixedly connected with the tail end of the corresponding positioning arm, the positioning columns are all perpendicular to the plane, at least one positioning column has a height different from that of other positioning columns, the microphones form a microphone array, and each microphone is arranged at the other end of the corresponding positioning column.
The embodiment can acquire and calibrate the audio frequency of the stereo area in multiple directions.
Example 2
The present embodiment provides a multi-path array microphone, as shown in fig. 1, preferably, on the basis of embodiment 1, the number of the positioning arms is 8, and the positioning arms are respectively a first positioning arm 21, a second positioning arm 22, a third positioning arm 23, a fourth positioning arm 24, a fifth positioning arm 25, a sixth positioning arm 26, a seventh positioning arm 27, and an eighth positioning arm 28, which are sequentially fixed on the base; the number of the positioning columns is 8, and the positioning columns are respectively a first positioning column 31, a second positioning column 32, a third positioning column 33, a fourth positioning column 34, a fifth positioning column 35, a sixth positioning column 36, a seventh positioning column 37 and an eighth positioning column 38, which are respectively vertically fixed with the tail ends of the corresponding positioning arms, and the positioning columns are located on the same side of the positioning arms.
As shown in fig. 3, preferably, an included angle between the first positioning arm 21 and the second positioning arm 22 is 45 degrees, an included angle between the second positioning arm 22 and the third positioning arm 23 is 45 degrees, an included angle between the third positioning arm 23 and the fourth positioning arm 24 is 19.99 degrees, an included angle between the fourth positioning arm 24 and the fifth positioning arm 25 is 25 degrees, an included angle between the fifth positioning arm 25 and the sixth positioning arm 26 is 19.99 degrees, an included angle between the sixth positioning arm 26 and the seventh positioning arm 27 is 25 degrees, and an included angle between the seventh positioning arm 27 and the eighth positioning arm 28 is 25 degrees.
As shown in fig. 2, preferably, the height of the first positioning column 31 is 55 mm, the heights of the second positioning column 32, the third positioning column 33 and the eighth positioning column 38 are all 70 mm, the heights of the fourth positioning column 34, the sixth positioning column 36 and the seventh positioning column 37 are all 112 mm, and the height of the fifth positioning column 35 is 100 mm.
According to fig. 5, preferably, the base 1 has a through hole at the connection part with each positioning arm, the plurality of limiting arms and the plurality of limiting columns are all hollow tubular structures, and the positioning columns are in threaded connection with the positioning arms.
Referring to fig. 1, 2, 5 and 7, the base 1 includes a chassis 11, a bottom cover 12, a fixed middle shaft 13 and a locking member 14, the bottom surface of the chassis 11 is provided with a first fixing through hole 111, the first fixing through hole 111 is located at the center of the chassis 11, a plurality of positioning arms are all fixed to the chassis 11, the plurality of positioning arms are all located on the same plane, the extension lines of the plurality of positioning arms all point to the disc center of the chassis 11, the bottom cover 12 is provided with a second fixing through hole 121, the second fixing through hole 121 is located at the center of the bottom cover 12, the bottom cover 12 is rotatably connected with the chassis 11, one end of the fixed middle shaft 13 is fixedly connected with the bottom cover, the axial direction of the fixed middle shaft 13 is provided with a third fixing through hole 131, the center of the third fixing through hole 131 coincides with the center of the second fixing through hole 121, the diameter of the third fixing through hole 131 is the same as that of the second fixing through hole 121, so that the multi-path array microphone is mounted on the second fixing through the third fixing through hole 131, the second fixing through hole 121 and the first fixing through hole 111 The fixing central shaft 13 can be inserted into the first fixing through hole 111, and the locking member 14 can lock the fixing central shaft 14 protruding from the chassis 11, thereby locking the chassis 11 and the bottom cover 12.
According to fig. 6 and 7, the base 1 is provided with a rotation limiting structure, and the rotation limiting structure is set to enable the chassis 11 to rotate only in a range of 0-10 degrees relative to the bottom cover 12, so that secondary acquisition calibration can be carried out on the audio frequency of a body area. The side wall of the base 1 is provided with a wire arranging hole 7.
Preferably, the chassis is provided with an arc-shaped through groove, the bottom cover is provided with a positioning pin, the positioning pin can be inserted into the arc-shaped through groove, and the maximum moving range of the positioning pin in the arc-shaped through groove is set to enable the chassis to rotate 0-10 degrees relative to the bottom cover.
Preferably, the chassis is provided with an arc through groove, the fixed middle shaft is in a boss shape, the protruding end of the fixed middle shaft can be inserted into the first fixing through hole, the non-protruding end of the fixed middle shaft is provided with a positioning pin which can be inserted into the arc through groove, and the maximum moving range of the positioning pin in the arc through groove is set to enable the chassis to rotate 0-10 degrees relative to the bottom cover.
The base 11 has the through-hole in the junction with the locating arm, and a plurality of spacing arms and a plurality of spacing post are hollow tubular structure, and the lateral wall of base 1 is equipped with winding displacement hole 77 for get rid of the line in the microphone from winding displacement hole 77 in unison, reference column and locating arm threaded connection can conveniently dismantle.
The technical scheme adopted by the invention can achieve the following beneficial effects: the multi-path array microphone provided by the invention can collect and calibrate the audio frequency of a specific three-dimensional area according to the different angles of the positioning arms and the different lengths of the positioning columns, and can accurately rotate by 10 degrees for secondary collection and calibration due to the rotation limiting structure.
Example 3
Based on embodiment 2, as shown in fig. 1, the multi-channel array microphone further includes an emission window, an emission window is disposed on an outer surface of a shaft of at least one positioning column, the emission window is adjacent to the microphone 4, a laser emitter is disposed in the emission window, a light beam emitted by the laser emitter is directed to an axis of a disk center of the base 1, preferably, a first emission window 361 is disposed on the sixth positioning column 36, and a second positioning window 381 is disposed on the eighth positioning column 38.
When in use, the multi-path array microphone bracket is arranged on the artificial head through the third fixing through hole 131, the second fixing through hole 121 and the first fixing through hole 111, the first positioning column 31 corresponds to the back part of the brain of the artificial head, the second positioning column 32 and the eighth positioning column 38 correspond to the artificial ear part of the artificial head, the eighth positioning column 38 is provided with a second positioning window 381 which can emit laser to the artificial ear to indicate the position of the microphone 4 at the artificial ear part and form light spots on the artificial ear, the third positioning column 33 corresponds to the cheek part of the artificial head, the fourth positioning column 34 and the seventh positioning column 37 correspond to the artificial mouth part of the artificial head and are respectively arranged at two positions of the mouth corner, the fifth positioning column 35 corresponds to the junction of the artificial mouth and the artificial nose, the sixth positioning column 36 corresponds to the right front part of the artificial mouth, the first emitting window 361 arranged on the sixth positioning column 36 can emit laser to the artificial mouth, light spots are formed on the artificial mouth to prompt the position of the microphone 4 positioned at the artificial ear, the top end of each positioning column is provided with the corresponding microphone 4, the microphones 4 positioned at the top ends of the positioning columns are distributed more three-dimensionally according to the difference of the included angles of the positioning arms and the difference of the heights of the positioning columns, and the chassis 11 can enable the chassis 12 to rotate in the range of 0-10 degrees relative to the bottom cover 11 through the arc-shaped through groove 6 and the positioning pin 5 which can be inserted into the arc-shaped through groove 6.
This embodiment provides the use scene of multichannel array microphone simulation and calibration artificial head, multichannel array microphone corresponds a plurality of different position of artificial head respectively, the cubical space has been formed, can diversified collection calibration use the artificial head as the audio frequency of the three-dimensional region of standard, the laser emitter that has can indicate, correct when installing the artificial head with multichannel array microphone, or in the use, because reasons such as rotation, the position deviation of microphone 4 that leads to, rotatory limit structure has, can also accurately rotate 10 degrees and carry out the secondary and gather the calibration, it is more accurate to have guaranteed to gather the audio frequency of the three-dimensional region that uses the artificial head as the standard and calibrate.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A multi-way array microphone, comprising:
the base is disc-shaped;
the positioning arms are all fixed on the base, are positioned on the same plane, and have extension lines pointing to the disc-shaped center of the base;
one end of each positioning column is fixedly connected with the tail end of the corresponding positioning arm, the positioning columns are perpendicular to the plane, and at least one positioning column has a height different from that of other positioning columns;
the microphones form a microphone array, and each microphone is arranged at the other end of the corresponding positioning column;
the outer surface of the column body of the at least one positioning column is provided with the emission window, the emission window is close to the microphone, a laser emitter is arranged in the emission window, and a light beam emitted by the laser emitter points to the axis of the disc-shaped center of the base.
2. The multi-array microphone as claimed in claim 1, wherein the number of the positioning arms is 8, and the positioning arms are respectively a first positioning arm, a second positioning arm, a third positioning arm, a fourth positioning arm, a fifth positioning arm, a sixth positioning arm, a seventh positioning arm, and an eighth positioning arm, and are sequentially fixed to the base;
the number of the positioning columns is 8, the positioning columns are respectively a first positioning column, a second positioning column, a third positioning column, a fourth positioning column, a fifth positioning column, a sixth positioning column, a seventh positioning column and an eighth positioning column, the positioning columns are respectively vertically fixed with the tail ends of the corresponding positioning arms, and the positioning columns are all located on the same side of the positioning arms.
3. The multi-channel array microphone of claim 2, wherein an included angle between the first positioning arm and the second positioning arm is 45 degrees, an included angle between the second positioning arm and the third positioning arm is 45 degrees, an included angle between the third positioning arm and the fourth positioning arm is 19.99 degrees, an included angle between the fourth positioning arm and the fifth positioning arm is 25 degrees, an included angle between the fifth positioning arm and the sixth positioning arm is 19.99 degrees, an included angle between the sixth positioning arm and the seventh positioning arm is 25 degrees, and an included angle between the seventh positioning arm and the eighth positioning arm is 25 degrees.
4. The multi-way array microphone of claim 3, wherein the height of the first positioning column is 55 mm, the heights of the second positioning column, the third positioning column and the eighth positioning column are all 70 mm, the heights of the fourth positioning column, the sixth positioning column and the seventh positioning column are all 112 mm, and the height of the fifth positioning column is 100 mm.
5. The multi-way array microphone according to any one of claims 1 to 4, wherein the base comprises:
the bottom surface of the chassis is provided with a first fixing through hole, the first fixing through hole is positioned in the center of the chassis, the positioning arms are all fixed on the chassis and positioned on the same plane, and the extension line directions of the positioning arms all point to the disc-shaped center of the chassis;
the bottom cover is provided with a second fixing through hole, the second fixing through hole is positioned in the center of the bottom cover, and the bottom cover is rotatably connected with the chassis;
the bottom cover is provided with a first fixing through hole, the bottom cover is provided with a second fixing through hole, one end of the first fixing through hole is fixedly connected with the bottom cover, the axis direction of the first fixing through hole is provided with a third fixing through hole, the center of the third fixing through hole is superposed with the center of the second fixing through hole, the diameter of the third fixing through hole is the same as that of the second fixing through hole, and the first fixing through hole can be inserted into the fixing middle shaft;
and the locking component can lock the part of the fixed middle shaft, which protrudes out of the chassis, so as to lock the chassis and the bottom cover.
6. The multi-way array microphone of claim 5, wherein the base is provided with a rotation limiting structure, the rotation limiting structure being configured such that the chassis can only rotate within a range of 0-10 degrees relative to the bottom cover.
7. The multiple array microphone as claimed in claim 5, wherein the chassis is formed with an arc-shaped through groove, the bottom cover is formed with a positioning pin which can be inserted into the arc-shaped through groove, and a maximum movable range of the positioning pin in the arc-shaped through groove is set to enable the chassis to rotate in a range of 0 to 10 degrees with respect to the bottom cover.
8. The multiple array microphone as claimed in claim 5, wherein the chassis defines an arc-shaped through slot, the fixed middle shaft is in the shape of a boss, the protruding end of the fixed middle shaft is inserted into the first fixing through hole, the non-protruding end of the fixed middle shaft is provided with a positioning pin, the positioning pin is inserted into the arc-shaped through slot, and the maximum moving range of the positioning pin in the arc-shaped through slot is set to enable the chassis to rotate in the range of 0-10 degrees relative to the bottom cover.
9. The multiple array microphone as claimed in claim 7 or 8, wherein the side wall of the base is provided with line holes.
10. The multi-way array microphone of claim 9, wherein the base has a through hole at the junction with each of the positioning arms, and the plurality of retaining arms and the plurality of retaining posts are hollow tubular structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110703792.9A CN113395632B (en) | 2021-06-24 | 2021-06-24 | Multi-path array microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110703792.9A CN113395632B (en) | 2021-06-24 | 2021-06-24 | Multi-path array microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113395632A true CN113395632A (en) | 2021-09-14 |
| CN113395632B CN113395632B (en) | 2022-11-11 |
Family
ID=77623771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110703792.9A Active CN113395632B (en) | 2021-06-24 | 2021-06-24 | Multi-path array microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113395632B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066022A (en) * | 2014-06-24 | 2014-09-24 | 中山市天键电声有限公司 | Novel single-directivity microphone |
| JP2014236346A (en) * | 2013-05-31 | 2014-12-15 | パナソニック株式会社 | Sound pickup system |
| CN105191345A (en) * | 2013-03-29 | 2015-12-23 | 日产自动车株式会社 | Microphone support device for sound source localization |
| JP2017075780A (en) * | 2015-10-13 | 2017-04-20 | 日産自動車株式会社 | High frequency sound measurement device |
| US20170374454A1 (en) * | 2016-06-23 | 2017-12-28 | Stmicroelectronics S.R.L. | Beamforming method based on arrays of microphones and corresponding apparatus |
| CN208434079U (en) * | 2018-07-27 | 2019-01-25 | 深圳市大疆创新科技有限公司 | Microphone mounting bracket, microphone assembly and electronic equipment |
| CN210274432U (en) * | 2019-09-25 | 2020-04-07 | 百度在线网络技术（北京）有限公司 | Pickup equipment |
| CN210274431U (en) * | 2019-09-25 | 2020-04-07 | 百度在线网络技术（北京）有限公司 | Pickup equipment |
-
2021
- 2021-06-24 CN CN202110703792.9A patent/CN113395632B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105191345A (en) * | 2013-03-29 | 2015-12-23 | 日产自动车株式会社 | Microphone support device for sound source localization |
| JP2014236346A (en) * | 2013-05-31 | 2014-12-15 | パナソニック株式会社 | Sound pickup system |
| CN104066022A (en) * | 2014-06-24 | 2014-09-24 | 中山市天键电声有限公司 | Novel single-directivity microphone |
| JP2017075780A (en) * | 2015-10-13 | 2017-04-20 | 日産自動車株式会社 | High frequency sound measurement device |
| US20170374454A1 (en) * | 2016-06-23 | 2017-12-28 | Stmicroelectronics S.R.L. | Beamforming method based on arrays of microphones and corresponding apparatus |
| CN208434079U (en) * | 2018-07-27 | 2019-01-25 | 深圳市大疆创新科技有限公司 | Microphone mounting bracket, microphone assembly and electronic equipment |
| CN210274432U (en) * | 2019-09-25 | 2020-04-07 | 百度在线网络技术（北京）有限公司 | Pickup equipment |
| CN210274431U (en) * | 2019-09-25 | 2020-04-07 | 百度在线网络技术（北京）有限公司 | Pickup equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113395632B (en) | 2022-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7684574B2 (en) | Reflective loudspeaker array | |
| US9788813B2 (en) | Multiple aperture probe internal apparatus and cable assemblies | |
| US20010038294A1 (en) | Method for fabricating probe tip portion composed by coaxial cable | |
| ES2928133T3 (en) | Measurement methods and systems to accurately assess a device under test | |
| EP2123220A1 (en) | A probe and coil fixed thereto for establishing the spatial location of a probe body and a method of fixedly position a magnetic generating means to a probe body and a system for obtaining geometrical data related to a cavity | |
| ES2351483T3 (en) | RESONATOR DEVICE AND ITS CIRCUITS. | |
| ES2476267T3 (en) | Antenna coil and its manufacturing procedure | |
| CN113395632B (en) | Multi-path array microphone | |
| CN101860776A (en) | Planar spiral microphone array | |
| CN215072877U (en) | Multi-path array microphone | |
| CN103720477A (en) | Locating device for near-field head-related transfer function measuring system | |
| JP2017075780A (en) | High frequency sound measurement device | |
| CN201718024U (en) | Plane spiral microphone array | |
| JPS61159606A (en) | Optical fiber terminal and manufacture thereof | |
| WO2006096801A2 (en) | Reflective loudspeaker array | |
| JPH08330745A (en) | Semiconductor device and manufacture thereof | |
| US11595756B2 (en) | Sound collecting apparatus | |
| JP2009055500A (en) | Sound pickup device | |
| CN109283364B (en) | Array antenna test system tool | |
| CN209813056U (en) | Straightening seat for cable framework | |
| CN219293034U (en) | Electrode microfilament cutting die and electrode microfilament cutting device | |
| CN219179595U (en) | Voice system for listening and identifying position | |
| CN218960956U (en) | Reflective marking ball and reflective marking device | |
| CN220193174U (en) | Reflective marking ball and reflective marking device | |
| CN221013458U (en) | Calibrator for surgical navigation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |