CN204129343U - A kind of two 3D cinema system - Google Patents
A kind of two 3D cinema system Download PDFInfo
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- CN204129343U CN204129343U CN201420618046.5U CN201420618046U CN204129343U CN 204129343 U CN204129343 U CN 204129343U CN 201420618046 U CN201420618046 U CN 201420618046U CN 204129343 U CN204129343 U CN 204129343U
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Abstract
The utility model is created provides a kind of two 3D cinema system, comprise memory storage, sound equipment power amplification system and audio/video player system, sound equipment power amplification system comprises audio process, D/A converter, audio frequency wire jumper dish, surround sound group, bass power amplification device and bass sound equipment group, audio/video player system comprises video playback server and some projectors, memory storage is audio frequency control main frame or blue light machine, surround sound group is the monitor speaker of some array arrangements, and bass sound equipment group comprises some woofers.A kind of two 3D cinema system, be a kind of Operation and Maintenance simply, the cinema system of highly integrated and high-quality cinema projection effect, high-resolution 3D picture can not only be provided, also by the holographic sound techniques of 3D, namely by the array of monitor speaker arrangement, sound is reduced, reappear the most natural, the most real sound field environment.
Description
Technical field
The invention belongs to movie theatre Play System field, especially relates to a kind of two 3D cinema system, can be applicable to movie theatre, ball screen cinema or theme park.
Background technology
Not only will have high-resolution 3D picture in two 3D movie theatre, sound effect is also vital.Stereo or surround sound equipment in traditional cinema Play System, the sound that people hear can not leave audio amplifier, and that is, the position of sound source can not change, so just there be " the gold seat " in arenas to say.Secondly in traditional cinema, between two audio-source, movement can cause audible artefacts.This point is particularly evident in the characteristic of ball screen cinema complexity, very likely causes the crossed reflex of audio frequency, finally causes audio frequency effect not good.Usually can conflict in the crossed reflex of ball curtain environment subaudio frequency, and cause noise reduction.Finally cause the audio area of intersection, for spectators, also can cause numerous audio frequency dead points.The effect of projection is had a greatly reduced quality, finally service quality and public praise is impacted.
Summary of the invention
The invention will solve above technical matters, provide a kind of Operation and Maintenance simply, two 3D cinema systems of highly integrated and high-quality cinema projection effect.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: a kind of two 3D cinema system, comprise memory storage, sound equipment power amplification system and audio/video player system, described sound equipment power amplification system comprises audio process, D/A converter, audio frequency wire jumper dish, surround sound group, bass power amplification device and bass sound equipment group, the output terminal of described audio process is connected with the input end of described D/A converter, the output terminal of described D/A converter is connected with described surround sound group by described audio frequency wire jumper dish, the input end of described bass power amplification device is connected with the output terminal of described D/A converter, the output terminal of described bass power amplification device connects described bass sound equipment group, described audio/video player system comprises video playback server and some projectors, described memory storage is connected with the input end of described video playback server with the input end of described audio process respectively, the output terminal of described video playback server connects described projector and described audio process respectively, described memory storage is audio frequency control main frame or blue light machine, described surround sound group is the monitor speaker of some array arrangements, described bass sound equipment group comprises some woofers.
Further, described monitor speaker is from top to bottom divided into upper, middle and lower-ranking structure, and every layer of described monitor speaker is all according to array arrangement.
Further, described memory storage is audio frequency control main frame, and described audio frequency control main frame is connected with described video playback server with described audio process respectively by switch.
Further, described memory storage is blue light machine, and described blue light machine is connected with described video playback server with described audio process respectively by prime demoder.
The advantage that the invention has and good effect are: a kind of two 3D cinema system, be a kind of Operation and Maintenance simply, the cinema system of highly integrated and high-quality cinema projection effect, high-resolution 3D picture can not only be provided, also by the holographic sound techniques of 3D, namely by the array of monitor speaker arrangement, sound is reduced, reappear the most natural, the most real sound field environment.WFS 3d space audio system combines with 3D video techniques such as IMAX 3D by the invention, sets up two 3D panoramic space cinema systems of the current world, becomes a kind of revolutionary intention manner of playback.Monitor speaker divides 3 layers to be arranged in around auditoria from the bottom to top, therefore can the acoustic image positions of expressive space three dimensions and mobile effect, deserves to be called real 3D surround sound standard.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of the invention most preferred embodiment;
Fig. 2 is the system construction drawing of the invention embodiment;
Fig. 3 is the distribution schematic diagram of monitor speaker in most preferred embodiment (being applied to ball curtain);
Fig. 4 is the distribution schematic diagram of monitor speaker (being applied to rectangle meeting-place) in an embodiment.
In figure: 1, bass sound equipment group; 2, surround sound group.
Embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the invention.
As Fig. 1, shown in 2, a kind of two 3D cinema system, comprise memory storage, sound equipment power amplification system and audio/video player system, described sound equipment power amplification system comprises audio process, D/A converter, audio frequency wire jumper dish, surround sound group 2, bass power amplification device and bass sound equipment group 1, the output terminal of described audio process is connected with the input end of described D/A converter, the output terminal of described D/A converter is connected with described surround sound group 2 by described audio frequency wire jumper dish, the input end of described bass power amplification device is connected with the output terminal of described D/A converter, the output terminal of described bass power amplification device connects described bass sound equipment group 1, described audio/video player system comprises video playback server and some projectors, described memory storage is connected with the input end of described video playback server with the input end of described audio process respectively, the output terminal of described video playback server connects described projector and described audio process respectively, described memory storage is audio frequency control main frame or blue light machine, described surround sound group 2 is the monitor speaker of some array arrangements, described bass sound equipment group 1 comprises some woofers.Described monitor speaker is from top to bottom divided into upper, middle and lower-ranking structure, and every layer of described monitor speaker is all according to array arrangement.Described memory storage is audio frequency control main frame, and described audio frequency control main frame is connected with described video playback server with described audio process respectively by switch.Described memory storage is blue light machine, and described blue light machine is connected with described video playback server with described audio process respectively by prime demoder.
The most preferred embodiment of a kind of pair of 3D cinema system is that monitor speaker is applied to ball screen cinema, monitor speaker is from top to bottom divided into upper, middle and lower-ranking structure, every layer of monitor speaker all according to annular array on ball curtain framework, described memory storage is audio frequency control main frame, and described audio frequency control main frame is connected with described video playback server with described audio process respectively by switch.The monitoring sound equipment topological design of two 3D cinema system have employed 5-500 the monitoring sound equipment composition array structure through WFS certification, simulates " the sub-sound source " of any time wavefront.Figure 3 shows that the situation that monitor speaker is arranged according to ball curtain scene, consider sound pressure level SPL directive property and the frequency characteristic of audio amplifier, through complicated some sound field analyze, have employed in space on the floor height of 128 monitor speakers distribution, three, upper, middle and lower, and 1/4 axis using 2 genelec 7060B woofers to be positioned over low frequency mode provides sufficient and uniform subwoofer expansion.Ground floor and the second layer respectively use 56 monitor speakers to distribute according to annular array, and the monitoring sound equipment between two-layer keeps at a certain distance away to expand the Sound image localization of Z axis in 3d space; Third layer, uses 16 audio amplifiers, is distributed in top layer according to tapered array, make the audio frequency of more than 2000Hz to cover listening area, thus promotes Z axis Sound image localization effect further.
The course of work of the invention most preferred embodiment is: the film USB of needs projection or Internet Transmission are in audio frequency control main frame, by the time show, signal needs from audio frequency control main frame to screen, by switch, signal is transferred to vision signal and audio digital signals respectively, two signals must be synchronous, then audio digital signals will through tinbergnuendo 5.5 Digital Audio Workstation by MADI (Multi-channel Audio Digital lnterface, multi-channel audio digital serial interface) intelligent acess SWD design WFS algorithm decoder, Digital Audio Workstation and WFS algorithm decoder composition audio processor module, digital-to-analog conversion is carried out again by the MADI M32-DA of 3 RME, 128 virtual signals are provided to access surround sound group 2 respectively.Meanwhile, 1/4 axis using 2 genelec 7060B woofers to be put in low frequency mode provides sufficient and uniform subwoofer expansion.
As shown in Figure 4, the another kind of embodiment of a kind of pair of 3D cinema system is that monitor speaker is applied to ordinary rectangular meeting-place or movie theatre, processed respectively according to the acoustic specifications parameter in room by the position of source of sound and distance, produced much different wave bands, then distributed to 128 different audio amplifiers.Each sound equipment in them is driven by the signal of uniqueness.Transmit successively after different audio amplifiers combines.Audio amplifier is more, and the array of audio amplifier is more intensive, and sound localization is more accurate.It can manipulate target voice in real time fashion, like this can as obtaining new application in movie theatre.Monitor speaker is all arranged on rectangular frame according to rectangular array, and described memory storage is blue light machine, and described blue light machine is connected with described video playback server with described audio process respectively by prime demoder.
The course of work of the another kind of embodiment of the invention is: the film USB of needs projection or Internet Transmission are in blue light machine, by the time show, signal needs from blue light machine to screen, by prime demoder, signal is transferred to vision signal and audio digital signals respectively, two signals must be synchronous, then audio digital signals will through tinbergnuendo 5.5 Digital Audio Workstation by MADI (Multi-channel Audio Digital lnterface, multi-channel audio digital serial interface) intelligent acess SWD design WFS algorithm decoder, Digital Audio Workstation and WFS algorithm decoder composition audio processor module, digital-to-analog conversion is carried out again by the MADI M32-DA of 3 RME, 128 virtual signals are provided to access surround sound group 2 respectively.Meanwhile, 1/4 axis using 2 genelec 7060B woofers to be put in low frequency mode provides sufficient and uniform subwoofer expansion.Specific implementation is: by a BD-S782 blue light machine access Onkyi5509 prime demoder, obtain multichannel Dolby, DTS and LPCM signal decoding of various standard, and simulating signal is accessed WFS algorithm decoder simultaneously, obtain from monaural Mono, stereo Sereo until the compatibility of 5.1,7.1 sound channels and 3D audio frequency conversion expansion.By such design, system can the special 3D audio program source of playback SWD, also can nondestructively support the stereo of conventional form or surround sound program source downwards; Make creation end simultaneously, according to the requirement of composer, arbitrary spatial sound design can be carried out.Meanwhile, by implanting the interactive programs such as MAX/MSP on Digital Audio Workstation, and some real-time interactive sensing devices, auditor can obtain the special experience that a kind of limit is listened to, limit makes, and the border of playback and making also can be made to become fusion.
The audio visual effect adopting native system to reach can be illustrated by following example: in 3D film, usually there will be object and fly to spectators' camera lens at the moment from screen, but meanwhile, the sound sent during object flight but could not follow together " flying " to come.And the effect that native system will reach is, be when object fly to even pound on the face at the moment time, sound is also sounding the most nearby simultaneously---just as the real scene in life.The core technology of the holographic sound of the 3D used in native system is called wave field synthesis, is a kind of brand-new acoustic playback technology.The principle of work of the holographic sound module of 3D of native system is: sound wave is called wave field in the distribution in space, wave field synthesis uses audio amplifier (loudspeaker) array, by the complicated calculations of a series of computer, the wave field of any time and anywhere can be synthesized.Similar with three-dimensional movie, be picture is divided in layer after, utilize 3-D technology to re-start synthesis and present the same, three dimensional sound also can be regarded as and sound is subdivided into a lot of wave band, then distributes to different audio amplifiers to synthesize and presents.In theory, only having could the sound field of true reduction site environment sound and Sound image localization with countless many sound channels and audio amplifier; But in actual applications, accomplish that " countless many " are impossible.And the existing surround sound standard do not waited to quantity such as 11 sound channels from 4 sound channels, no matter number of channels is how many, and the position of all audio amplifiers is all on same surface level, and they can only show the acoustic image positions of front and back and these two dimensions of left and right.And the holographic sound techniques of 3D that the invention uses, rely on wave field composition principle, can to appear in space Anywhere by enable voice.The surround sound group 2 used in native system adopts linear array audio amplifier distributed architecture, and array speaker distributed architecture has following characteristics:
1, linear array audio amplifier distributed architecture is made up of a series of monitor speaker, and all monitor speakers are by certain specification arrangement, and needing according to sound field can alinement and " J " font.The number of monitor speaker is determined by public address sound field, but must meet the basic demand forming linear array, and namely the length of linear array at least should be greater than the half of the wavelength of radiative acoustic wave.The radiation characteristic of each monitor speaker has strict requirement, and such as, radiated, frequency characteristic, horizontal directivity, distortion and linear phase etc. meet linear array to requiring.
Such as, the low frequency cell in the monitor speaker of EAW KF761 bears power 1200W, sensitivity 96db; Intermediate frequency unit power 500W, sensitivity 107db; High frequency unit power 150W, sensitivity 112db.After monitor speaker composition array, due to the interaction between monitor speaker, radiation resistance is got a promotion, improves radiation efficiency.Therefore, the sound pressure level adopting linear array audio amplifier distributed architecture to obtain more than 100db as sound source beyond 100m is easy.
2, cover sound field comparatively even, interference region is little, and playback resolution is high.
The vertical directivity of linear array is very sharp-pointed, and generally at about 10 °, the narrowest narrow acoustic beam reaching 3 ° of radiation, the direct sound wave arriving corresponding audience area is stronger, and the distance of radiation is distant again, smaller in the change of the sound pressure level in far region.Due to the Sidelobe control of linear array, make the overlay region of radiated sound field relatively little, interference surface is little.Direct sound wave is main region, and sense of hearing is good, clear sound, resolution are high.
3, radiation characteristic is measurable.
The radiation characteristic of linear array can calculate in theory, and the parameter affecting radiation characteristic is very clear, can by controlling the radiated sound that these parameters reach required.Such as, determine the objective function of audience area and some on-the-spot parameters, by design and the debugging software of linear array, some parameters such as adopting how many Cells, mounting means, deflection angles can be known, calculate further and just can estimate out some characteristics such as the sound field of overlay area.
4, be convenient to install and hanging.
Each monitor speaker is all provided with dedicated lifting hook, the deflection angle of monitor speaker can be controlled as required, therefore, assembled in situ, hang very convenient.
The various ways such as 5, surround sound group is when hanging, and according to the structure of array and the demand of actual sound reproduction, can take orthoscopic, arc line type, j formula, gradual.
Above an embodiment of the invention has been described in detail, but described content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalization changes done according to the invention application range with improve, within the patent covering scope that still all should belong to the invention.
Claims (3)
1. a two 3D cinema system, it is characterized in that: comprise memory storage, sound equipment power amplification system and audio/video player system, described sound equipment power amplification system comprises audio process, D/A converter, audio frequency wire jumper dish, surround sound group, bass power amplification device and bass sound equipment group, the output terminal of described audio process is connected with the input end of described D/A converter, the output terminal of described D/A converter is connected with described surround sound group by described audio frequency wire jumper dish, the input end of described bass power amplification device is connected with the output terminal of described D/A converter, the output terminal of described bass power amplification device connects described bass sound equipment group, described audio/video player system comprises video playback server and some projectors, described memory storage is connected with the input end of described video playback server with the input end of described audio process respectively, the output terminal of described video playback server connects described projector and described audio process respectively, described memory storage is audio frequency control main frame or blue light machine, described surround sound group is the monitor speaker of some array arrangements, described bass sound equipment group comprises some woofers.
2. the two 3D cinema system of one according to claim 1, it is characterized in that: described monitor speaker is from top to bottom divided into upper, middle and lower-ranking structure, every layer of described monitor speaker is all according to array arrangement.
3. the two 3D cinema system of one according to claim 1, it is characterized in that: described memory storage is audio frequency control main frame, described audio frequency control main frame is connected with described video playback server with described audio process respectively by switch.
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| CN201420618046.5U CN204129343U (en) | 2014-10-23 | 2014-10-23 | A kind of two 3D cinema system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104735597A (en) * | 2015-03-20 | 2015-06-24 | 深圳市环球数码创意科技有限公司 | Immersion type holographic sound and 3D image fusion achieving system |
| CN105072539A (en) * | 2015-08-31 | 2015-11-18 | 武汉轻工大学 | 3D audio system for household |
| CN107452249A (en) * | 2017-08-09 | 2017-12-08 | 上海工程技术大学 | A kind of sound system of flight simulator |
| CN108668215A (en) * | 2018-07-18 | 2018-10-16 | 广州市锐丰音响科技股份有限公司 | Panorama range system |
-
2014
- 2014-10-23 CN CN201420618046.5U patent/CN204129343U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104735597A (en) * | 2015-03-20 | 2015-06-24 | 深圳市环球数码创意科技有限公司 | Immersion type holographic sound and 3D image fusion achieving system |
| CN104735597B (en) * | 2015-03-20 | 2018-11-09 | 深圳市环球数码创意科技有限公司 | A kind of immersion holography sound merges realization system with 3D rendering |
| CN105072539A (en) * | 2015-08-31 | 2015-11-18 | 武汉轻工大学 | 3D audio system for household |
| CN107452249A (en) * | 2017-08-09 | 2017-12-08 | 上海工程技术大学 | A kind of sound system of flight simulator |
| CN107452249B (en) * | 2017-08-09 | 2019-07-02 | 上海工程技术大学 | A kind of sound system of flight simulator |
| CN108668215A (en) * | 2018-07-18 | 2018-10-16 | 广州市锐丰音响科技股份有限公司 | Panorama range system |
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Granted publication date: 20150128 Termination date: 20181023 |