CN107820146A - It is adaptive to point to three-dimensional sound field digital microphone - Google Patents
It is adaptive to point to three-dimensional sound field digital microphone Download PDFInfo
- Publication number
- CN107820146A CN107820146A CN201610816092.XA CN201610816092A CN107820146A CN 107820146 A CN107820146 A CN 107820146A CN 201610816092 A CN201610816092 A CN 201610816092A CN 107820146 A CN107820146 A CN 107820146A
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- CN
- China
- Prior art keywords
- sound field
- microphone
- sensing
- adaptive
- pick
- 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.)
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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
- H04R1/083—Special constructions of mouthpieces
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads
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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
- H04R5/00—Stereophonic arrangements
- H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
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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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
Abstract
The invention discloses a kind of adaptive sensing three-dimensional sound field digital microphone, belong to electrical communication technology microphone field, its inside only recombinates orthogonal pick-up head comprising three, gravity sensing sensor, AFE(analog front end) processing and analog-to-digital conversion, adaptive sensing processing, voice data processing, audio data transmission unit, interface conversion and adaptation, data-interface that can be directly with the mobile device such as mobile phone or tablet personal computer is connected, realize the signal to noise ratio higher than pure simulation microphone and sensitivity, and three-dimensional sound field information and the hand-held posture of automatic sensing can be picked up, dynamic reorganization is carried out to pick-up head according to the directional information of posture, realize that the left and right sound field axis of typing is in horizontality all the time, obtain the three-dimensional recording of high-quality for meeting normal pleasant sense of hearing custom.
Description
Technical field
The present invention relates to a kind of microphone equipment, especially a kind of digital microphone wind devices.
Background technology
Existing microphone or microphone mainly add microphone structure body to form by moving-coil or condenser pick-up, output
Analog signal is directly delivered to follow-up amplification or processing equipment by connecting line.The problem of bringing mainly has signal to noise ratio to be difficult to carry
Rise, analogue transmission is easily disturbed by noise, for only having the microphone of single sound pick-up can not record sound field information, typing
Sound there is no spatial impression, while directly can not also be connected with very widely used today mobile phone or tablet personal computer, it is necessary to by
Signal transacting and conversion links among sound card etc..
The content of the invention
In order to overcome simulating signal interference problem of the prior art, sound field missing problem, and mobile device connectivity problem,
This hair propose it is a kind of adaptive point to three-dimensional sound field digital microphone, use three can be with the condenser pick-up of dynamic configuration
Comprehensive three-dimensional pickup is realized, and carries AFE(analog front end) process circuit, analog to digital conversion circuit, gravity sensing technology, signal
Processing and transmission circuit, can directly be connected with mobile phone or tablet personal computer and carry out recording work, eliminate simulation Long line transmission,
Three-dimensional sound field recording is realized, improves signal to noise ratio, and has invented adaptive pointing technology by being carried to gravity direction detecting
Hand-held pose information is taken out, and dynamic adjusts configuring for sound pick-up and causes the left and right axis of typing sound field to be in level side all the time
To the sense of hearing for meeting human ear is accustomed to.
The technical solution adopted in the present invention is：Using three condenser pick-ups, including two double sensing sound pick-ups and
One all referring to the sound in space is picked up to sound pick-up, wherein keeping space all referring to sound pick-up and each double sensing sound pick-ups
Orthogonality relation.
The analog signal of each sound pick-up enters numeral after enhanced processing using independent analog-to-digital passage
Process part, by digital processing by all referring to it is double sensing sound pick-ups signals carry out three-dimensional sound field reconstruct and resolve into left and right
Stereo channel signals carry out subsequent treatment.
Subsequently going out processing includes handling the adjustment of the dynamic amplitude of signal and digital reverberation, can be added by gain and gain
Subtract button and realize the control that total size is exported to microphone.It can select whether reverberation effect adds by reverberation button.
Signal Direct Digital after processing is transmitted to connected main frame, real eventually through three kinds of different output interface versions
Now with the connection of different type main frame, including it is connected with iPhone or iPad Lightning data ports, and with USB-
Mobile phone or the flat board connection of TYPE-C interfaces, are connected with the mobile phone with Micro-USB interfaces or flat board.
Adaptively pointing to the technical scheme of regulation is：Microphone is monitored by the acceleration transducer built in microphone in real time
Hand-held or clamping posture, dynamic configuration reaches typing sound field all referring to the combination to sound pick-up and double sensing sound pick-ups
Left and right spatial axes be in horizontality all the time so that the left and right orientation of typing sound field playback when also keep normal water flat-shaped
Presence during the reproduction typing of state, more accurate and natural.
Brief description of the drawings
Patent of the present invention is further illustrated with reference to the accompanying drawings and examples.
The structural diagrams that Fig. 1 is the present invention are intended to；
Fig. 2 sound pick-up configuration schematic diagrams；
Fig. 3 automatically points to adjustment schematic diagram for the present invention's.
1. insert HPI (can be Lightning, one kind in USB Type-C, Micro-USB), 2. circuits in figure
Plate, 3. key groups (four altogether, gain adds, and gain subtracts, and effect switch, points to self-adaptive switch), 4. guards, 5. all referring to picking up
Sound device, 6. pairs of sensing sound pick-up No.1s, 7. pairs of sensing sound pick-ups two, 8. point to indicator lamp (totally four), 9. acceleration sensings
Device, 10. shells
Embodiment
【Embodiment 1】
As shown in Fig. 2 kept just for No. two 7 all referring to sound pick-up 5 and double sensing sound pick-up No.1s 6, double sensing sound pick-ups
Vertical relation, 90 degree of angles of double sensing sound pick-up No.1s 6 and double No. two 7 holdings of sensing sound pick-up are handed over, three sound pick-ups are tried one's best
Installation close to each other, sound pick-up lower section is circuit board 2, and being provided with key switch 3, (four altogether, gain adds, and gain subtracts, effect
Switch, point to self-adaptive switch), point to 90 degree of the interval of indicator lamp 8 four and arrange that acceleration transducer 9 is located in circuit board 2
Portion, the circuit function on circuit board 2 include Simulation scale-up, Analog-digital Converter, three-dimensional sound field processing, effect process, audio number
Above-mentioned electronic device is included according to transmission and interface conversion, shell 10 and guard 4,1 is to insert HPI, the present embodiment
In be corresponding apple Lightning interfaces.
The function of adaptive recording gesture recognition as shown in figure 3, no matter which kind of posture microphone is in, its respective tops
Indicator lamp can light, the left and right of recording pickup direction keep normal left and right orientation without different with microphone posture and
Change.
【Embodiment 2】
1 is inserts HPI, is USB Type-C interfaces in the present embodiment.Remaining is the same as embodiment 1.
【Embodiment 3】
1 is inserts HPI, is Micro USB interfaces in the present embodiment.Remaining is the same as embodiment 1.
【Embodiment 4】
The present embodiment is to best embody the minimum of the digital microphone feature to implement set.
All referring to sound pick-up 5 and double sensing sound pick-up No.1s 6, double passes for pointing to sound pick-up No. two 7 and keeping orthogonal vertical
System, 90 degree of angles of double sensing sound pick-up No.1s 6 and double No. two 7 holdings of sensing sound pick-ups, three sound pick-ups are tried one's best peace close to each other
Dress, sound pick-up lower section is circuit board 2, and acceleration transducer is housed on circuit board 2.
Claims (5)
1. a kind of adaptive sensing three-dimensional sound field digital microphone, including housing (10), circuit board (2), with mobile host equipment
Connecting interface (1), key group (3), indicator lamp (8), acceleration transducer (9), all referring to sound pick-up (5), double sensing pickups
Device No.1 (6), double sensing sound pick-ups No. two (7) and guard (4), it is characterised in that sound pick-up (5) and (6) space are mutually hung down
Directly, sound pick-up (5) and (7) space are mutually perpendicular to, and sound pick-up (6) and (7) space are mutually perpendicular to, indicator lamp (8) have four according to
It is evenly distributed on per an angle of 90 degrees degree on circuit board circumferencial direction.
2. adaptive sensing three-dimensional sound field digital microphone according to claim 1, it is characterised in that by acceleration sensing
Device (9) obtains the hand-held orientation posture of microphone, selects sound pick-up (5), (6), (7) that mode and conjunction is applied in combination according to posture
Proportional, it is actually typing the left and right axis of sound field and is always positioned at horizontal direction when realizing the recording under different gestures, avoids
Sound field of being recorded during stereophonic recording follows microphone posture to change.
3. adaptive sensing three-dimensional sound field digital microphone according to claim 1, it is characterised in that button can be passed through
Group (3) controls the gain size of microphone.
4. adaptive sensing three-dimensional sound field digital microphone according to claim 1, it is characterised in that button can be passed through
The on and off of the special-effect of group (3) control microphone, including reverberation effect, men and women's sound conversion effect.
5. adaptive sensing three-dimensional sound field digital microphone according to claim 1, it is characterised in that button can be passed through
Group (3) selects being turned on and off for adaptive direction-pointing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610816092.XA CN107820146A (en) | 2016-09-12 | 2016-09-12 | It is adaptive to point to three-dimensional sound field digital microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610816092.XA CN107820146A (en) | 2016-09-12 | 2016-09-12 | It is adaptive to point to three-dimensional sound field digital microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107820146A true CN107820146A (en) | 2018-03-20 |
Family
ID=61601092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610816092.XA Pending CN107820146A (en) | 2016-09-12 | 2016-09-12 | It is adaptive to point to three-dimensional sound field digital microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107820146A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111972928A (en) * | 2020-08-21 | 2020-11-24 | 浙江指云信息技术有限公司 | Sleep-aiding pillow with surrounding sound field and adjusting and controlling method thereof |
| CN113923562A (en) * | 2020-07-10 | 2022-01-11 | 北京搜狗智能科技有限公司 | Sound pickup method and device |
-
2016
- 2016-09-12 CN CN201610816092.XA patent/CN107820146A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923562A (en) * | 2020-07-10 | 2022-01-11 | 北京搜狗智能科技有限公司 | Sound pickup method and device |
| CN111972928A (en) * | 2020-08-21 | 2020-11-24 | 浙江指云信息技术有限公司 | Sleep-aiding pillow with surrounding sound field and adjusting and controlling method thereof |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180320 |
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| WD01 | Invention patent application deemed withdrawn after publication |