CN106658250A - Binaural recording device - Google Patents
Binaural recording device Download PDFInfo
- Publication number
- CN106658250A CN106658250A CN201710068072.3A CN201710068072A CN106658250A CN 106658250 A CN106658250 A CN 106658250A CN 201710068072 A CN201710068072 A CN 201710068072A CN 106658250 A CN106658250 A CN 106658250A
- Authority
- CN
- China
- Prior art keywords
- recording device
- double
- sphere structure
- type sound
- ear type
- 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
-
- 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
-
- 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
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
Abstract
The invention provides a binaural recording device. The binaural recording device is characterized by comprising a sphere structure (1) used for simulating a human head contour; left and right simulation auricula structures (21, 22) are installed on left and right sides of the sphere structure (1); left and right microphones (31, 32) are installed in auricula inlets or auditory meatuses for collecting holographic sound field signals; a circuit board (5) is further packaged in the sphere structure (1), is provided with a signal processing circuit for processing the signals picked up by the left and right microphones (31, 32), and is further provided with a Bluetooth wireless transceiver module used for sending microphone signals to an external terminal or receiving a Bluetooth audio signal from the external terminal; a rechargeable battery (6) is further packaged for supplying power to the components; and a button (4) is further arranged on the sphere structure (1) for operating and controlling the recording device. Binaural signals can be conveniently collected by the device, and the signal transmission fidelity is greatly enhanced in cooperation with a high-definition Bluetooth audio transmission scheme.
Description
Technical field
The invention belongs to electroacoustic field, more particularly to a kind of Double-ear type sound-recording device.
Background technology
Traditional way of recording includes single Mike's recording, stereophonic recording (AB, XY, MS, ORTF).Single Mike's recording letter the most
Just, but sound field is also dull；The original intention of stereophonic recording is to build the stereophonic field of more horn of plenty, in microphone arrangement
Occur in that diversified mode, be try to simulate the perception characteristic of two ears to sound of people, such as time delay, amplitude difference,
Phase place etc., but be simply to be difficult to reach the real auditory perceptual of simulation by microphone putting position.
The appearance of Double-ear type sound-recording technology compensate for the shortcoming of tradition recording, also occur in that some apply ears in prior art
The recording product of technology, such as records artificial first-class, but these product structures are complicated, and connected mode is also wired connection mode,
Often also need to that by translation interface mobile terminal etc. could be connected, inconvenience is brought to Double-ear type sound-recording, in addition using tradition
The binaural signal recorded out of recording dummy head's product can still cause the fuzzy problem of acoustic image in playback time.
The content of the invention
In order to overcome the defect of prior art, the present invention to propose a kind of Double-ear type sound-recording device, can be conveniently by the device
Carry out binaural signal collection, and greatly strengthen the transmission fidelity of signal with the use of high definition Bluetooth audio frequency transmission plan.
A kind of Double-ear type sound-recording device is provided, is characterised by, including sphere structure, for phantom bead profile；In spheroid knot
The left and right sides of structure is provided with left and right emulation auricle structure；Left and right microphone is installed, for gathering in auricle entrance or duct
Holographic acoustic field signal；Wiring board is also packaged with sphere structure, it has signal processing circuit for picking up to left and right microphone
Signal processed, its also have bluetooth radio receiving transmitting module, for microphone signal to be sent to exterior terminal or reception
From the Bluetooth audio signals of exterior terminal；Rechargeable battery is also packaged with, for powering to each part；Also set on sphere structure
Button is equipped with, for manipulating to recording device.Wherein, the material of sphere structure includes solid wood, resin or metal material；Its
In, auricle is soft materials, including silica gel material；USB is additionally provided with sphere structure, for charging the battery, and can
With exterior terminal wired connection with send microphone signal and receive from exterior terminal signal；It is additionally provided with sphere structure
Earphone jack, for accessing earphone or audio amplifier to synchronize monitoring.
Mike is put in being additionally provided with the direction consistent with auricle frontal of the centre position on sphere structure surface
Wind.
Further, using blue tooth RFCOMM passage by microphone signal uplink to exterior terminal；Code encoding/decoding mode
One of using Whole frequency band coded system, including SBC, OPUS, Apt-X, AAC；Bluetooth radio receiving transmitting module provides SDP services,
Service describing is with the addition of in SDP services, core is to which depict UUID and RFCOMM passages；It is when using, bluetooth is wireless
Transceiver module is matched with exterior terminal；After successful matching, set up by bluetooth radio receiving transmitting module logical based on RFCOMM
The SOCKET connections in road；After connection establishment, then can be based on set up SOCKET and connect, be passed through by bluetooth radio receiving transmitting module
RFCOMM passages carry out the transmission of voice data.
Wherein, exterior terminal includes mobile phone, PDA, panel computer, laptop computer, PC.
Description of the drawings
Fig. 1 is the structural representation of the Double-ear type sound-recording device of the present invention
Specific embodiment
With reference to accompanying drawing, a kind of Double-ear type sound-recording device of the present invention is described in detail.As shown in Figure 1, the ears record
Mixer includes sphere structure 1, and for phantom bead profile, the material of sphere structure 1 includes but is not limited to solid wood, resin, gold
The materials such as category；Left and right emulation auricle structure 21,22, preferably soft materials, example are installed in the left and right sides of sphere structure 1
Such as silica gel；Left and right microphone 31,32 is installed, for gathering holographic acoustic field signal in auricle entrance or duct；Sphere structure 1
Wiring board 5 is inside also packaged with, it has signal processing circuit for processing the signal of the pickup of left and right microphone 31,32,
Its also have bluetooth radio receiving transmitting module, for by microphone signal send to exterior terminal (not shown) or receive from
The Bluetooth audio signals of exterior terminal；Rechargeable battery 6 is also packaged with, for powering to each part；Also set up on sphere structure 1
There is button 4, for manipulating to recording device.
Further, earphone jack 7 and USB 8 are provided with sphere structure 1, USB 8 is used to receive outside
Electric power to be charged to battery 6, and can with exterior terminal wired connection with send microphone signal and receive from it is outside eventually
The digital audio and video signals at end；Earphone jack 7 is used to access earphone or audio amplifier with to the signal of microphone 31,32 and/or from outer
The audio signal of portion's terminal synchronizes monitoring.
Further, also set up on the direction consistent with auricle frontal of the centre position on the surface of sphere structure 1
There is middle microphone 33, the signal for remembering the pickup of left and right microphone 31,32 is L, R, and the signal of the pickup of middle microphone 33 is C, by
Double-ear type sound-recording device by the L after being processed, R, C signal or without process L, R, C signal in a wired or wireless fashion
Send to exterior terminal and recorded.Wherein, signal L, R and signal C are carried out processing and includes in the following manner：
SL=α L+ β C, SR=γ R+ β C (1)
Wherein, SL be by the left ear signal L and signal C of middle microphone add and after signal, SR be by right ear signals R with
The signal C of middle microphone adds the signal with after, and α, β, γ are weight coefficient.Microphone in by being introduced into, can strengthen front
The voice signal record of sound source so that sound field is more plentiful.
Further, for above-mentioned bluetooth radio receiving transmitting module, it adopts what blue tooth RFCOMM passage picked up microphone
Signal uplink is transmitted to exterior terminal, and code encoding/decoding mode is encoded using Whole frequency band.By the coding and transmission means, it is possible to achieve
The low delay of uplink, Whole frequency band and channel transmission, greatly promote the fidelity of upward signal；Whole frequency band coded system bag
Include but be not limited to SBC, OPUS, Apt-X, AAC coding.In specific uplink implementation, firstly, it is necessary to Double-ear type sound-recording
Bluetooth radio receiving transmitting module in device provides SDP services, and in SDP services service describing is added, and core is to which depict
UUID and RFCOMM passages；Secondly, bluetooth radio receiving transmitting module and exterior terminal are matched, for ANDROID or PC
For system, the pairing pass that described UUID and RFCOMM Path Setups are risen between earphone end and exterior terminal can be based only upon
System, is then the basis inherently in bluetooth radio receiving transmitting module with HFP/HSP and A2DP services for IOS systems
Above set up pairing；After successful matching, the SOCKET set up based on RFCOMM passages by bluetooth radio receiving transmitting module is connected；
After connection establishment, for ANDROID or PC systems, then can be based on set up SOCKET and connect, by bluetooth wireless receiving and dispatching
Module directly carries out the transmission of voice data by RFCOMM passages, for IOS systems, then also needs to a verification process,
I.e. on the SOCKET connections based on RFCOMM passages set up, after being authenticated by IAP1/2 agreements, EAP is recycled
Agreement carries out the transmission of voice data.
Double-ear type sound-recording device further includes support 9, for supporting the Double-ear type sound-recording device.
Wherein, exterior terminal includes but is not limited to mobile phone, PDA, panel computer, laptop computer, PC etc..
By the Double-ear type sound-recording device of the present invention, sound field recording and reduction effect can be effectively lifted.
Claims (10)
1. a kind of Double-ear type sound-recording device, is characterised by, including sphere structure (1), for phantom bead profile；In sphere structure
(1) the left and right sides is provided with left and right emulation auricle structure (21,22)；Left and right microphone is installed in auricle entrance or duct
(31,32), for gathering holographic acoustic field signal；Wiring board (5) is also packaged with sphere structure (1), it has signal transacting electricity
Road is used to process the signal of left and right microphone (31,32) pickup, and it also has bluetooth radio receiving transmitting module, for by wheat
Gram wind number sends to exterior terminal or receives Bluetooth audio signals from exterior terminal；Rechargeable battery (6) is also packaged with,
For powering to each part；Button (4) is additionally provided with sphere structure (1), for manipulating to recording device.
2. Double-ear type sound-recording device as claimed in claim 1, is characterised by, the material of sphere structure (1) include solid wood, resin or
Metal material.
3. Double-ear type sound-recording device as claimed in claim 1, is characterised by, auricle is soft materials, including silica gel material.
4. Double-ear type sound-recording device as claimed in claim 1, is characterised by, USB (8) is additionally provided with sphere structure (1),
For give battery (6) charge, and can with exterior terminal wired connection with send microphone signal and receive from exterior terminal
Signal.
5. Double-ear type sound-recording device as claimed in claim 1, is characterised by, earphone jack (7) is provided with sphere structure (1),
For accessing earphone or audio amplifier to synchronize monitoring.
6. Double-ear type sound-recording device as claimed in claim 1, is characterised by, the centre position and ear on sphere structure (1) surface
Middle microphone (33) is additionally provided with the consistent direction of wide frontal.
7. Double-ear type sound-recording device as claimed in claim 1, is characterised by, using blue tooth RFCOMM passage by microphone signal
Row is transmitted to exterior terminal.
8. Double-ear type sound-recording device as claimed in claim 7, is characterised by, code encoding/decoding mode adopts Whole frequency band coded system, bag
Include one of SBC, OPUS, Apt-X, AAC.
9. Double-ear type sound-recording device as claimed in claim 8, is characterised by, bluetooth radio receiving transmitting module provides SDP services,
Service describing is with the addition of in SDP services, core is to which depict UUID and RFCOMM passages；It is when using, bluetooth is wireless
Transceiver module is matched with exterior terminal；After successful matching, set up by bluetooth radio receiving transmitting module logical based on RFCOMM
The SOCKET connections in road；After connection establishment, then can be based on set up SOCKET and connect, be passed through by bluetooth radio receiving transmitting module
RFCOMM passages carry out the transmission of voice data.
10. the Double-ear type sound-recording device as described in one of claim 1-9, is characterised by, exterior terminal includes mobile phone, PDA, flat board
Computer, laptop computer, PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068072.3A CN106658250A (en) | 2017-02-06 | 2017-02-06 | Binaural recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068072.3A CN106658250A (en) | 2017-02-06 | 2017-02-06 | Binaural recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106658250A true CN106658250A (en) | 2017-05-10 |
Family
ID=58845374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710068072.3A Pending CN106658250A (en) | 2017-02-06 | 2017-02-06 | Binaural recording device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106658250A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322839A (en) * | 2017-12-12 | 2018-07-24 | 广东小天才科技有限公司 | External device with charging bluetooth earphone function and Bluetooth earphone system |
| CN109686351A (en) * | 2017-10-19 | 2019-04-26 | 张德明 | A kind of holography sound field K song system |
| CN110177313A (en) * | 2018-02-21 | 2019-08-27 | 苹果公司 | Binaural audio capture is carried out using wireless wireless head-band earphone |
| CN114584913A (en) * | 2020-11-30 | 2022-06-03 | 华为技术有限公司 | FOA signal and binaural signal obtaining method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109686351A (en) * | 2017-10-19 | 2019-04-26 | 张德明 | A kind of holography sound field K song system |
| CN108322839A (en) * | 2017-12-12 | 2018-07-24 | 广东小天才科技有限公司 | External device with charging bluetooth earphone function and Bluetooth earphone system |
| CN110177313A (en) * | 2018-02-21 | 2019-08-27 | 苹果公司 | Binaural audio capture is carried out using wireless wireless head-band earphone |
| CN110177313B (en) * | 2018-02-21 | 2020-08-18 | 苹果公司 | Binaural audio capture using cordless wireless headphones |
| CN114584913A (en) * | 2020-11-30 | 2022-06-03 | 华为技术有限公司 | FOA signal and binaural signal obtaining method and device |
| CN114584913B (en) * | 2020-11-30 | 2023-05-16 | 华为技术有限公司 | FOA signal and binaural signal acquisition method, sound field acquisition device and processing device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200420 Address after: 100085 12A-2, B, block 28, information road, Haidian District, Beijing. Applicant after: BEIJING SAIBIN SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 100024, room 1406, Hongyuan building, No. 4 Jiuxianqiao Road, Beijing, Chaoyang District Applicant before: Zhang Deming |
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