CN106982407A - A kind of virtual reality device of the three-dimensional sound field of combination osteoacusis - Google Patents
A kind of virtual reality device of the three-dimensional sound field of combination osteoacusis Download PDFInfo
- Publication number
- CN106982407A CN106982407A CN201610354969.8A CN201610354969A CN106982407A CN 106982407 A CN106982407 A CN 106982407A CN 201610354969 A CN201610354969 A CN 201610354969A CN 106982407 A CN106982407 A CN 106982407A
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- China
- Prior art keywords
- bone conduction
- sound field
- virtual reality
- osteoacusis
- dimensional sound
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Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 34
- 239000000919 ceramic Substances 0.000 claims abstract description 6
- 230000005669 field effect Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000003625 skull Anatomy 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 206010048865 Hypoacusis Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 210000000883 ear external Anatomy 0.000 description 1
- 210000000959 ear middle Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The present invention relates to a kind of virtual reality device of the three-dimensional sound field of combination osteoacusis, including one wears 3D displays and multiple bone conduction vibrators, and wherein bone conduction vibrator is divided into bass bone conduction vibrator and high pitch bone conduction vibrator.Characterized in that, being provided with multiple different vibration frequency piezoelectric ceramic bone conduction vibrators inside the holder part of head-mounted display.The advantage of the invention is that, using multiple piezoelectric ceramic bone conduction vibrators, according to the diverse location of its distribution and the different frequency transmitted, finally combine special difference algorithm, realize the three-dimensional sound field of osteoacusis, make that the tonequality of virtual reality device is more life-like, performance is more remarkable, is adapted to the virtual reality applications occasion of needs strenuous exercise.
Description
Technical field
The present invention relates to a kind of virtual reality device, the virtual reality of especially a kind of three-dimensional sound field of combination osteoacusis is set
It is standby.
Background technology
Osteoacusis：Refer to realize the conduction pattern of sound using human skull as the communication media of sound source body.Osteoacusis
Sound directly can be sent to the auricularis inside ear by skull.It the advantage is that：1. bone conduction device is using process
In will not produce constriction to ear-drum, and have on the sound around bone-conduction device and still can hear；2. very serious
Noisy environment in can listen to gem-pure sound.3. effective (the acoustic system from external ear to middle ear of pair person hard of hearing
It is caused to listen barrier).4. principle is different from manufacturing process, bone conduction earphone has very excellent water resistance.For a long time using not
Can be because sweat causes damage to earphone.
Three-dimensional effect of sound field：Human ear distinguish the sound from different azimuth be by formed between sound source and ears identical or
Different angles.Due to the gap of angle so that the time and intensity that sound passes to left and right ear by sound source produces the small time
Difference, and the physiological property of the human ear generation distance perspective very sensitive to this small time difference, so that sound is obtained exactly
Positioning.
The quantity of bone conduction vibrator, distributing position, replay delay and Hz-KHz are carried out suitably according to actual needs
Modification, adjustment and coding, just can substantially produce three-dimensional space sense.
Therefore the present invention devises a kind of virtual reality device of the three-dimensional sound field of combination osteoacusis, makes virtual reality sound body
Test truer.
The content of the invention
Present invention aims at：It is real by the different distributions position of multiple piezoelectric ceramic bone conduction vibrators and vibration frequency
Existing 3 D stereo effect of sound field.
The technical scheme is that：By special difference algorithm, reverse push performance is set up needed for three-dimensional effect of sound field
Each bone conduction vibrator playback waveform.
Characterized in that, generating → calculating the flow of excitation function → compensating for frequency response → broadcasting sound according to source of sound, calculate
After the playback waveform of each specific bone conduction vibrator, the structure of three-dimensional sound field is completed.
Innovative point of the present invention is：
1. the virtual reality device of the present invention, sound equipment does not use air transmitted mode, and uses not by user motion side
The osteoacusis mode of formula influence, so as to improve the acoustic stability of equipment.The piezoelectric ceramic bone conduction vibrator used
Quantity is 4-8, and the Hz-KHz of each bone conduction vibrator is different.
, being capable of the three-dimensional sound field of reverse push performance foundation 2. another innovative point of the present invention is to have invented a kind of difference algorithm
The playback waveform of each bone conduction vibrator needed for effect.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Fig. 1 is the structural representation of virtual reality device of the present invention；
3D displays (1) and multiple bone conduction vibrators, wherein bass bone conduction vibrator (2 (a), 2 are worn including one
(b)), high pitch bone conduction vibrator (3 (a), 3 (b)).
Fig. 2 is sound source A hair in the bone conduction vibrator of sound field schematic diagram, i.e., 4 (L (a), L (b), R (a), R (b)) simulation space
The schematic diagram of sound.
Fig. 3 is the flow chart that original audio signal is rebuild.
Embodiment
Shown in reference picture 1, the bone conduction vibrator of different distributions position needs different Hz-KHzs, in order to build three-dimensional sound
Field is, it is necessary to according to the accurate replay waveform for calculating each oscillator.
According to ears Principles of Acoustics, wherein PLPRThe acoustic pressure that sound source is produced at people's ears, P are represented respectively0It is that people is not present
The acoustic pressure that Shi Shengyuan is produced in circle centre position.Sound source is r to head centre distance, and the elevation angle is θ, and azimuth is φ, and frequency is Ω, people
Body parameter is a, b, c.Then have：
For osteoacusis, left and right ear reception is not limited to, therefore have：
Wherein P1-PnFor the acoustic pressure at n bone conduction vibrator.
Fig. 2 is the signal that sound source A sounding in space is simulated using 4 bone conduction vibrators (L (a), L (b), R (a), R (b))
Figure.Wherein (L (a), R (a)) is bass bone conduction vibrator, and (L (b), R (b)) is high pitch bone conduction vibrator.Each bone conduction vibrator according to
To virtual sound source A distance sounding successively, intensity of sound decays successively according to strength retrogression's rule in space.
By passing through corresponding wave filter to original audio signal, Phase Build Out is carried out, the signal of each playback is can obtain, sees
Fig. 3.
So as to build the three-dimensional sound field of stereoeffect.
The foregoing is only a specific embodiment of the invention.Protection scope of the present invention is not limited thereto, any ripe
Know those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be contained
Cover within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined with claim
It is defined.
Claims (4)
1. a kind of virtual reality device of the three-dimensional sound field of combination osteoacusis, including one wears 3D displays (1) and multiple osteoacusis
Oscillator, wherein bone conduction vibrator are divided into bass bone conduction vibrator (2 (a), 2 (b)), high pitch bone conduction vibrator (3 (a), 3 (b)).Its
It is characterised by, multiple different vibration frequency piezoelectric ceramic bone conduction vibrators is installed inside the holder part of head-mounted display.Root
The diverse location being distributed according to bone conduction vibrator and the different frequency transmitted, finally with reference to special difference algorithm, realize that bone is passed
Lead three-dimensional sound field.
2. the virtual reality device of the three-dimensional sound field of a kind of combination osteoacusis according to claim 1, it is characterised in that described
Piezoelectric ceramic bone conduction vibrator quantity is four to eight, is distributed in positions different in equipment.
3. the virtual reality device of the three-dimensional sound field of a kind of combination osteoacusis according to claim 1, it is characterised in that different
The corresponding Hz-KHz of bone conduction vibrator of position is different.
4. a kind of virtual reality device of the three-dimensional sound field of combination osteoacusis according to claim 1, it is characterised in that invention
A kind of difference algorithm, deduces out the playback waveform needed for the bone conduction vibrator of diverse location and parameter, so as to realize three-dimensional sound
Field effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354969.8A CN106982407A (en) | 2016-05-26 | 2016-05-26 | A kind of virtual reality device of the three-dimensional sound field of combination osteoacusis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354969.8A CN106982407A (en) | 2016-05-26 | 2016-05-26 | A kind of virtual reality device of the three-dimensional sound field of combination osteoacusis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106982407A true CN106982407A (en) | 2017-07-25 |
Family
ID=59340354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354969.8A Pending CN106982407A (en) | 2016-05-26 | 2016-05-26 | A kind of virtual reality device of the three-dimensional sound field of combination osteoacusis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106982407A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589932A (en) * | 2017-08-31 | 2018-01-16 | 维沃移动通信有限公司 | A kind of data processing method, virtual reality terminal and mobile terminal |
| CN110581911A (en) * | 2019-08-26 | 2019-12-17 | Oppo广东移动通信有限公司 | Electronic device and voice control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6970569B1 (en) * | 1998-10-30 | 2005-11-29 | Sony Corporation | Audio processing apparatus and audio reproducing method |
| WO2015141402A1 (en) * | 2014-03-19 | 2015-09-24 | ソニー株式会社 | Acoustic output device |
| CN204855941U (en) * | 2015-06-29 | 2015-12-09 | 深圳市虚拟现实科技有限公司 | Wear -type virtual reality equipment and system |
| CN105533986A (en) * | 2016-01-26 | 2016-05-04 | 王泽玲 | Bone conduction hair clasp |
-
2016
- 2016-05-26 CN CN201610354969.8A patent/CN106982407A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6970569B1 (en) * | 1998-10-30 | 2005-11-29 | Sony Corporation | Audio processing apparatus and audio reproducing method |
| WO2015141402A1 (en) * | 2014-03-19 | 2015-09-24 | ソニー株式会社 | Acoustic output device |
| CN106105255A (en) * | 2014-03-19 | 2016-11-09 | 索尼公司 | Acoustic output device |
| CN204855941U (en) * | 2015-06-29 | 2015-12-09 | 深圳市虚拟现实科技有限公司 | Wear -type virtual reality equipment and system |
| CN105533986A (en) * | 2016-01-26 | 2016-05-04 | 王泽玲 | Bone conduction hair clasp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589932A (en) * | 2017-08-31 | 2018-01-16 | 维沃移动通信有限公司 | A kind of data processing method, virtual reality terminal and mobile terminal |
| CN110581911A (en) * | 2019-08-26 | 2019-12-17 | Oppo广东移动通信有限公司 | Electronic device and voice control method |
| CN110581911B (en) * | 2019-08-26 | 2021-06-01 | Oppo广东移动通信有限公司 | Electronic device and voice control method |
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| DD01 | Delivery of document by public notice |
Addressee: Shanghai Mdt InfoTech Ltd Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Mdt InfoTech Ltd Document name: Notification of Passing Examination on Formalities |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190715 Address after: 314400 Area J, Canghai Road, Haining Warp Knitting Industrial Park, Jiaxing City, Zhejiang Province Applicant after: Haining Sinuo Robot Co., Ltd. Address before: Room 701, Building A, 701 Taogan Road, Sheshan Town, Songjiang District, Shanghai, 20102 Applicant before: Shanghai Mdt InfoTech Ltd |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170725 |