CN103945303B - A kind of ear effect 3D recording rings - Google Patents
A kind of ear effect 3D recording rings Download PDFInfo
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- CN103945303B CN103945303B CN201410147071.4A CN201410147071A CN103945303B CN 103945303 B CN103945303 B CN 103945303B CN 201410147071 A CN201410147071 A CN 201410147071A CN 103945303 B CN103945303 B CN 103945303B
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Abstract
The present invention relates to a kind of ear effect 3D recording rings, including wear bale handle, be symmetrically mounted on the two recording rings and recording control module for wearing bale handle two ends, be characterized in：The recording ring is the ring skeleton of middle hollow out, and hidden on the inside of ring skeleton to install multiple microphones, each microphone is connected with recording control module and carries out 3D synchronizations under the control of recording control module.The present invention takes full advantage of the interference effect of auricle and the number of people to sound field, the spatial information of sound field is contained in the array sound signal of record, hearer can be allowed significant true 3D phonoreceptions are obtained when being played using ear effect 3D auditions ring, solve recording and professional dummy head's recorded audio signals spatial impression in common ears unobvious, and existing two-channel 3D recording need that earphone is arranged on the problem recorded in the duct of people, the present invention is used in combination with ear effect 3D audition rings, sensitiveness to the difference of the different numbers of people is recorded and binaural recording and other record types much smaller than in traditional duct.
Description
Technical field
The invention belongs to 3D sound processing techniques field, especially a kind of ear effect 3D recording rings.
Background technology
At present, dual-channel headphone increasingly pursues 3D effect, and carrying out 3D sound field recording technologies using dual-channel headphone also exists
Gradually it is developed.For example, 32 yuan of ball arrays of 80 millimeters of Mhacoustics companies of U.S. diameter are a kind of space 3D sound fields
Sound pick-up outfit, by VBAP, the conversion of HOA, WFS scheduling algorithm can generate the 3D sound fields of various multi-forms, but it records letter
Still the sense of hearing cannot be allowed the audio of true 3D sound is produced when number directly being played with conventional earphone.32 yuan of TU Delft Polytechnics
Circular array patent " Circular microphonearrayformultichannelaudiorecording ", WO/2004/
084577, EP1606970 is also a kind of 3D sound fields sound pick-up outfit, and it is recorded signal and directly cannot also allow the sense of hearing when being played with earphone
Produce the audio of true 3D sound.The true 3D earphone with round voice of Canadian Psyko audio labs also exists in addition to two earmuff sounding
5 osteoacusis players are mounted with overarm, 7 arrays of broadcast unit composition, the left and right of the audio produced by it are formd
Feel obvious up and down, front and rear sense is not still obvious, is mainly used in game.
In sum, existing two-channel 3D recording need to be arranged on earphone in the duct of people, or artificial with specialty
Head record, its recorded audio signals in two-channel audition before and after sense, feel up and down not substantially, and play when by the true number of people
The influence of the individual difference of profile and size causes 3D sense of hearing senses unobvious.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of ear effect 3D recording rings, solve existing double
Recording and professional dummy head's recorded audio signals spatial impression be not obvious in ear, and existing two-channel 3D recording need to be arranged on earphone
The problem recorded in the duct of people.
The present invention solves existing technical problem and takes following technical scheme to realize：
A kind of ear effect 3D recording rings, including wear bale handle, be symmetrically mounted on two recording ring and records for wearing bale handle two ends
Sound control module, the recording ring is the ring skeleton of middle hollow out, hidden on the inside of ring skeleton to install multiple microphones, respectively
Individual microphone is connected with recording control module and carries out 3D synchronizations under the control of recording control module.
And, described recording control module is two embedded recording control modules, two embedded recording control moulds
Block is inlaid in recording ring and is connected by the line synchro worn in bale handle respectively.
And, described recording control module is a dragging line formula recording control module, and dragging line formula recording control module sets
Put outer in recording ring and be connected with each microphone in two recording rings by holding wire.
And, described microphone is towards the center of recording ring.
And, described embedded recording control module includes multi-path collector, power module, storage card, interface module,
Power module is that low power module and being connected with multi-path collector, storage card and interface module is connected in its and powers, described multichannel
Collector is connected with each microphone on recording ring, and multi-path collector, storage card and interface module interconnect,
It is connected by line synchro between two multi-path collectors.
And, described dragging line formula recording control module includes multi-path collector, power module, storage card, interface module,
Power module is that low power module and being connected with multi-path collector, storage card and interface module is connected in its and powers, described multichannel
Collector is connected with each microphone on two recording rings, and multi-path collector, storage card and interface module are interconnected on
Together, multi-path collector is connected by holding wire with the microphone on two recording rings.
And, the quantity at least 3 of microphone and identical are set in two recording rings, typical amounts are 8 or 16
It is individual and uniformly install.
And, the ring skeleton be shaped as circle, ellipse, rectangle, prismatic, triangle, pentagon, hexagon or
Keep other rules or irregular shape that ears side recording ring-shaped is symmetrical.
And, the ring skeleton is wrapped with entrant sound cloth.
Advantages and positive effects of the present invention are：
1st, this ear effect 3D recording rings are hidden on recording ring is installed microphone array and is controlled by control module of recording
System, takes full advantage of the interference effect of auricle and the number of people to sound field, and hearer can be allowed to obtain significant true 3D phonoreceptions, solves
Recording and professional dummy head's recorded audio signals spatial impression be not obvious in existing ears, and existing two-channel 3D recording are needed earphone
The problem recorded in the duct of people.
2nd, each microphone of this ear effect 3D recording rings can reach optimal recording effect towards the center of recording ring.
3rd, after this ear effect 3D recording rings are arranged on and are recorded on dummy head, or true man's head, directly can imitate audition ring with ear and broadcast
Put and can obtain the significant presence of 3D effect.
4th, this ear effect 3D recording ring can be used in combination with ear effect 3D audition rings, and the sensitiveness to the difference of the different numbers of people is remote
Less than recording and other record types in duct, with to the pervasive compatibility of the different numbers of people.
5th, the recording ring of this ear effect 3D recording rings is a ring skeleton for the middle hollow out made by light rigid materials,
The cloth that can be opened wide or entrant sound is wrapped up outside it is coverd with, and reaches effect attractive in appearance.
6th, this ear effect 3D recording rings include embedded recording ring structure and dragging line formula recording ring structure, disclosure satisfy that difference makes
The need for user.
7th, when this ear effect 3D recording rings and ear effect 3D audition rings are used in combination, ear effect 3D auditions ring and ear imitate 3D recording rings
Diameter and array element quantity and lay position etc. and require completely the same, the diameter of ring is smaller, and the fidelity of resulting 3D sound is got over
Height, array element quantity is more, and the audio frequency range being applicable is higher.
Brief description of the drawings
Fig. 1 is the structural representation of embedded ear effect 3D recording rings of the invention；
Fig. 2 is the structural representation of dragging line formula ear effect 3D recording rings of the invention；
Fig. 3 is ear effect 3D recording rings of the invention（Left ear）Microphone array structural representation；
Fig. 4 is ear effect 3D recording rings of the invention（Auris dextra）Microphone array structural representation；
Fig. 5 is the structural representation that embedded ear imitates 3D audition rings；
Fig. 6 is the structural representation that dragging line formula ear imitates 3D audition rings；
Fig. 7 is ear effect 3D audition rings（Left ear）Loudspeaker battle array structural representation；
Fig. 8 is ear effect 3D audition rings（Auris dextra）Loudspeaker battle array structural representation.
Specific embodiment
The embodiment of the present invention is further described below in conjunction with accompanying drawing.
A kind of ear effect 3D recording rings, including embedded ear effect 3D recording rings and dragging line formula ear effect 3D recording two kinds of forms of ring.
As shown in figure 1, embedded ear effect 3D recording rings include wearing bale handle 4, are symmetrically mounted on two recording rings for wearing bale handle two ends
1st, the embedded recording control modules 6 that are inlaid in two recording rings and installed in wear in bale handle and with two embedded records
The line synchro 5 that sound control module is connected.The recording ring structure for wearing bale handle two ends is just the same, and recording ring is one by lightweight
The ring skeleton of the middle hollow out that rigid material is made, diameter about 80mm, in order to attractive in appearance, can be in ring skeleton outer wrapping entrant sound cloth
Material, the shape of the ring skeleton can be circle, ellipse, rectangle, triangle, pentagon, hexagon, the recording of holding ears side
Ring-shaped symmetrical other rules or irregular shape.8 microphones 3 of uniform hidden installation on the inside of each ring skeleton, and
And be worn on around auricle 2 for ring skeleton suspension towards recording ring center by microphone.Each it is embedded recording control module with
8 road microphones are connected for gathering microphone signal, and described line synchro connects two embedded recording control modules to be used for
Transmit the synchronous clock pulse signal and work command signal of data acquisition, it is ensured that left and right recording ring synchronous recording voice signal.Often
Individual embedded recording control module includes multi-path collector（8 tunnels）, power module, storage card, interface module, power module is
Low power module and being connected with multi-path collector, storage card and interface module is connected in whole ear effect 3D recording ring hardware efforts and provides
Electric power, described multi-path collector is connected with 8 microphones on recording ring, multi-path collector, storage card and interface module
Interconnect, the signal of the microphone on each recording ring is stored in after being transformed into data signal by multi-path collector
It is connected by line synchro in storage card, between two multi-path collectors and ensures the synchronous recording function of left and right recording ring.It is described
Interface module be USB port 3G network interfaces, USB port 3G network interfaces are the external standard USB interfaces for providing, and the USB interface can connect
Insert 3G wireless network modules so as to compunication, the recording data in storage card can be by under USB interface or 3G network interfaces
It is downloaded in computer.
Dragging line formula ear effect 3D recording rings, as shown in Fig. 2 including wearing bale handle 4, being symmetrically mounted on and wear the two of bale handle two ends
1, dragging line formula recording control module 7 of individual recording ring.8 microphones 3 are laid with the inside of each ring skeleton, each biography
Sound device towards recording ring center, ring skeleton suspension is worn on around auricle 2, and the microphone in two ring skeletons passes through
Holding wire 8 is connected with the dragging line formula recording control module being arranged on outside recording ring, and dragging line formula recording control module is adopted
Two signals of the road microphones of recording ring Nei 16 of collection.Dragging line formula recording control module includes multi-path collector（16 tunnels）, power supply
Module, storage card, interface module, described power module are connected with multi-path collector, storage card and interface module and are connected in its confession
Electricity, described multi-path collector is connected with each microphone on recording ring, multi-path collector, storage card and interface module phase
Interconnection is connected together, and the signal of the microphone on each recording ring is transformed into be stored in after data signal by multi-path collector to be deposited
In card storage.Described interface module is USB port 3G network interfaces, and USB port 3G network interfaces are the external standard USB interface for providing, the USB
Interface can patch 3G wireless network modules so as to compunication, the recording data in storage card can be by USB interface
Or 3G network interfaces are downloaded in computer.
Microphone array distribution form in above two ear effect 3D recording rings is identical.It is multiple transaudient on recording ring
Device is designed by certain formation, is worn rear microphone and is centered around around auricle and constitutes true 3D recording scheme.As shown in Figures 3 and 4,
Two ear effect recording rings are the cirque structure of 8 road microphone array elements, and microphone array element numbering symmetric design, front is that S0 is mono-
Unit, other microphone array elements numbering is rotated up and is followed successively by S1, S2, S3, S4, S5, S6, S7, and microphone is hidden installed in annular
Skeleton inner side and towards ring center.Signal amplifilter in each microphone array element be independent and schematic circuit and
PCB layout structure is completely the same, and the acquisition and recording device on each recording ring records each array element signals, and data are stored in storage card
It is interior.
In above-mentioned ear effect 3D recording ring schemes, the phase relation that each microphone on recording ring receives acoustic signals receives ear
The locus of the interference of wide and number of people shape and sound source determines that amplitude is influenceed by number of people shape, the auricle and sound source position, because
This, the phase relation according to each microphone signal can reflect the spatial positional information of sound source, the amplitude of each microphone sound
The positional information of sound source can also be reflected.Symmetrical recording ring is hung on left and right side ear, sound source three-dimensional direction can be reflected
And distance, so being a kind of true 3D sound sound pick-up outfit.The formation of ear effect 3D recording rings can have diversified forms, and array element quantity is at least
3 and quantity is identical, typical amounts are 8 or 16,8 consistent array elements of performance are typically uniformly distributed on annulus and are passed
Sound device, the array element numbering on left and right recording ring is S0 to S7 according to the direction layout turned upwards from front.
Ear effect 3D recording ring major function of the invention is to hang to be worn on around auricle to detect that record spatial sound source is propagated
The sound of different test points on ring near to auricle, the amplitude and phase of resulting signal contain the spatial information of sound field,
Being played through loudspeaker array can form the audio of true 3D sound fields.The present invention can be used alone, it is also possible to imitate 3D auditions with ear
Ring is supported the use, and realizes that ear effect 3D recording and ear effect 3D listen sound function.Ear effect 3D auditions ring also includes two kinds of forms, and one kind is embedding
Enter formula structure, another kind is to drag line type structure, is illustrated separately below.
As shown in figure 5, embedded ear effect 3D auditions ring includes wearing bale handle 9, being symmetrically mounted on and wear the two of bale handle two ends
Individual audition ring 10, the embedded audition control module 13 being inlaid in two audition rings and installed in wearing in bale handle and with two
The line synchro 12 that individual embedded audition control module is connected.The audition ring structure for wearing bale handle two ends is just the same, audition ring
It is a ring skeleton for the middle hollow out being made up of light rigid materials, diameter about 80mm, in order to attractive in appearance, can be in ring skeleton
The sound-proof cloth of outer wrapping, the shape of the ring skeleton can for circle, ellipse, rectangle, triangle, pentagon, hexagon,
Keep other rules or irregular shape that ears side recording ring-shaped is symmetrical.The uniform hidden installation on the inside of each ring skeleton
8 loudspeakers 11, and loudspeaker is towards audition ring center, and ring skeleton suspension is worn on around auricle 2, is broadcast by synchronous
Put voice signal and produce the sound field with spatial information.Each embedded audition control module is connected control with No. 8 loudspeakers
Loudspeaker is played out, when described line synchro connects two embedded audition control modules for the synchronization for transmitting data acquisition
Clock signal and command signal, it is ensured that left and right audition ring is synchronously played.Each embedded audition control module includes multichannel
Player（8 tunnels）, power module, storage card, interface module, power module be low power module and with multichannel player, storage
Card is connected with interface module and is connected in whole ear effect 3D audition rings hardware effort offer electric power, described multichannel player and audition ring
On 8 loudspeakers be connected, multichannel player, storage card and interface module are interconnected, and described multichannel is played
Device reads voice data from storage card and is used to play, and being connected by line synchro between two multichannel players ensures that left and right is listened
The synchronous recording function of sound ring.Described interface module is USB port 3G network interfaces, and USB port 3G network interfaces are the external standards for providing
USB interface, the USB interface can patch 3G wireless network modules so as in compunication and from computer to storage card
Pass 3D sound data files.
As shown in fig. 6, dragging line formula ear effect 3D auditions ring includes wearing bale handle 9, being symmetrically mounted on and wear the two of bale handle two ends
Individual audition ring 10 and it is arranged on the dragging line formula audition control module worn outside bale handle.It is laid with the inside of each ring skeleton
8 loudspeakers 11, each loudspeaker towards audition ring center, ring skeleton suspension is worn on around auricle 2, two annulars
Intraskeletal loudspeaker is connected by holding wire 15 with the dragging line formula dragging line control module being arranged on outside audition ring, the dragging line formula
Audition control module is used for two audition ring Nei No. 16 loudspeakers of control carries out sound broadcasting.Dragging line formula audition control module bag
Include multichannel player（16 tunnels）, power module, storage card, interface module, described power module and multichannel player, storage card
It is connected with interface module and is connected in its power supply, described multichannel player is connected with each loudspeaker on audition ring, and multichannel is raised
Sound device, storage card and interface module interconnect, and described multichannel player reads voice data use from storage card
To play.Described interface module is USB port 3G network interfaces, and USB port 3G network interfaces are the external standard USB interface for providing, the USB
Interface can patch 3G wireless network modules to upload 3D voice datas in compunication and from computer to storage card
File.
Loudspeaker array distribution form in above two ear effect 3D audition rings is identical.As shown in Figures 7 and 8, two
Individual audition ring is the cirque structure of No. 8 loudspeaker array elements, and loudspeaker array element numbering symmetric design, front is L0 units, its
His loudspeaker array element numbering is rotated up and is followed successively by L1, L2, L3, L4, L5, L6, L7, and loudspeaker is hidden in ring skeleton
Side and towards ring center.The number of people shape interference harmony when phase relation of each loudspeaker broadcasting sound embodies audition on audition ring
The locus in source determines that the amplitude for playing sound is influenceed by number of people shape, the auricle and sound source position.Therefore, according to each
The phase relation of loudspeaker sound can reflect the spatial positional information of sound source, and the amplitude of each loudspeaker sound can also reflect
The positional information of sound source.Symmetrical audition ring is hung on left and right side ear, sound source three-dimensional direction and distance, institute can be reflected
Being a kind of true 3D sound listening device.
When in use, ear effect 3D recording rings are that ear pairing in left and right is used to the present invention, and ear effect 3D audition rings are also that left and right ear is matched somebody with somebody
To using, and the mode of structuring the formation of ear effect 3D recording rings and ear effect 3D audition rings is just the same, is Aided design, preferably ties
Structure profile is also just the same, and the former recorded audio signals are directly played with the latter and can be obtained by true 3D audios, it is also possible to by monophonic
Signal or stereophony, 5.1 sound channels, 7.1 sound channels, 22.2 sound channel surround sounds can imitate 3D by being formed after editor with ear
The pseudo- 3D sound that audition ring is played.The spatial impression that 3D sound is played is determined by the direction and distance of sound transmission, be in human ear
Acoustically produce true 3D audios obvious enough, it is desirable in the sound field of generation approaching to reality sound transmission in one's ear.On the one hand require
Retain the spatial information of sound field during recording, the spatial information of sound field on the other hand can be produced when playing, can more utilize
The Auricle effect of human ear forms the space senses such as the forward and backward of sound, left, right, up, down, and to the simultaneous of different people head shapes
Content is high.Both the voice signal that 3D recording ring records can have been imitated with ear directly plays the true 3D sound of generation with ear effect 3D auditions ring,
Or by some algorithms partially volume after generation be adapted to home theater play 5.1 forms, 7.1 forms, 22.2 forms or other
Form, while common acoustic can also be played into pseudo- 3D voice signals ear effect 3D auditions ring by compilation and design producing puppet 3D sound
Sound.In addition to wearing mode, the characteristic of the recording of 3D sound is relevant with the shape of microphone array, array element quantity, array element spacing,
The characteristic of the broadcasting sound of 3D sound is relevant with the shape of loudspeaker array, array element quantity, array element spacing.
It is emphasized that the present invention is the interference effect that make use of auricle to sound field, and the ear effect recording in recording
Ring make use of the number of people to the interference effect of sound field, and its diameter about 80mm, array element quantity about 8 is uniform to lay, but changes ring
Diameter, or change the shape of ring, or change array element quantity, or change array element laying uniformity etc., belong to the present invention
Claim categories.
Claims (6)
1. a kind of ear effect 3D recording rings, including two recording control modules, wear bale handle and be symmetrically mounted on and wear bale handle two ends
Two recording rings, it is characterised in that：The recording ring is the ring skeleton of middle hollow out, the hidden installation on the inside of ring skeleton
Multiple microphones, each microphone is connected with recording control module and to carry out 3D synchronous under the control of recording control module
Recording；Described microphone is towards the center of recording ring；
Wherein, described recording control module is embedded recording control module, and two embedded recording control module difference are embedding
It is connected in two recording rings and by the line synchro worn in bale handle：
Described embedded recording control module includes multi-path collector, power module, storage card, interface module, power module
Be connected for low power module and with multi-path collector, storage card and interface module and be connected in its power supply, described multi-path collector with
Each microphone on recording ring is connected, and multi-path collector, storage card and interface module interconnect, two multichannels
It is connected by line synchro between collector.
2. a kind of ear according to claim 1 imitates 3D recording rings, it is characterised in that：Microphone is set in two recording rings
Quantity is identical and at least 3.
3. a kind of ear according to claim 1 imitates 3D recording rings, it is characterised in that：The ring skeleton is outer by entrant sound cloth
Cladding.
4. a kind of ear effect 3D recording rings, including recording control module, wear bale handle and be symmetrically mounted on and wear bale handle two ends
Two recording rings, it is characterised in that：The recording ring is the ring skeleton of middle hollow out, the hidden installation on the inside of ring skeleton
Multiple microphones, each microphone is connected with recording control module and to carry out 3D synchronous under the control of recording control module
Recording；Described microphone is towards the center of recording ring；
Wherein, described recording control module is a dragging line formula recording control module, and dragging line formula recording control module is arranged on
It is connected with each microphone in two recording rings outside recording ring and by holding wire；
Described dragging line formula recording control module includes multi-path collector, power module, storage card, interface module, power module
Be connected for low power module and with multi-path collector, storage card and interface module and be connected in its power supply, described multi-path collector with
Each microphone on two recording rings is connected, and multi-path collector, storage card and interface module interconnect, multichannel
Collector is connected by holding wire with the microphone on two recording rings.
5. a kind of ear according to claim 4 imitates 3D recording rings, it is characterised in that：Microphone is set in two recording rings
Quantity is identical and at least 3.
6. a kind of ear according to claim 4 imitates 3D recording rings, it is characterised in that：The ring skeleton is outer by entrant sound cloth
Cladding.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105246001B (en) * | 2015-11-03 | 2018-08-28 | 中国传媒大学 | Double-ear type sound-recording headphone playback system and method |
| CN106792349A (en) * | 2016-12-15 | 2017-05-31 | 北京塞宾科技有限公司 | A kind of triple channel holography sound field sound pick-up outfit |
| CN106982227A (en) * | 2017-05-03 | 2017-07-25 | 张德明 | A kind of holographic sound field conference system |
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| US20070009120A1 (en) * | 2002-10-18 | 2007-01-11 | Algazi V R | Dynamic binaural sound capture and reproduction in focused or frontal applications |
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| US6608903B1 (en) * | 1999-08-17 | 2003-08-19 | Yamaha Corporation | Sound field reproducing method and apparatus for the same |
| CN1781336A (en) * | 2003-04-29 | 2006-05-31 | 洪·崇·图延·费姆 | Headphone for spatial sound reproduction |
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Effective date of registration: 20190404 Address after: No. 1 Building, 666 Dongqilu Road, Qilin Science and Technology Innovation Park, Nanjing City, Jiangsu Province, 210008 Patentee after: NANJING QIAOSHENG FLUCTUATION TECHNOLOGY CO., LTD. Address before: No. 96 East Zhongguancun Road, Haidian District, Beijing 100190 Patentee before: Yang Luxin |
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