CN205356529U - Live sound video synchronization system of cinema - Google Patents
Live sound video synchronization system of cinema Download PDFInfo
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- CN205356529U CN205356529U CN201620115117.9U CN201620115117U CN205356529U CN 205356529 U CN205356529 U CN 205356529U CN 201620115117 U CN201620115117 U CN 201620115117U CN 205356529 U CN205356529 U CN 205356529U
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Abstract
The utility model relates to a live sound video synchronization system of cinema is applicable to and uses live required voice data and the video data of satellite system transmission cinema, including the data acquisition end, data transmission link, data receiving terminal and the player terminal that connect in order, data acquisition end includes video capture device and audio acquisition device, and video capture device gathers multichannel video data and selects to export to all the way data transmission link according to the instruction, audio acquisition device collection multichannel voice data and to transmitting to data transmission link behind the multichannel audio frequency data transmission link 0, the data receiving terminal includes data decode ware, video output interface, audio decoder ware, and data transmission link is connected to data decode ware one end electricity, and video output interface and audio decoder ware mouth are connected to other end electricity respectively. The embodiment of the utility model provides an it possesses the cinema live broadcast effect of high -quality picture and high -fidelity audio to have utilized audio frequency and video separation collection technique and satellite transmission technology.
Description
Technical field
This utility model relates to multimedia play technology field, particularly to a kind of live audio-visual synchronization system of movie theatre.
Background technology
In view of super large high-definition display screen curtain and the advantage surrounding sound system, movie theatre is always up people and watches the primary choosing of hot film.And main flow is just quietly moved towards in one new culture activity, people come into movie theatre, perhaps for appreciating hot film, instead, are the on-the-spot high-definition live broadcastings of viewing ball match, concert etc..
Then, current movie theatre mostly remains as the projection system based on non-real-time file formula, it is achieved movie theatre is live yet suffers from a lot of technical problem needs to solve, and specifically how ensures that real-time live broadcast is still that one of problem needing solution badly.Currently, although also there being some documents to show to realize the movie theatre high-definition live broadcasting to ball match, concert etc. by direct broadcasting satellite technology, solve how to realize the real-time Transmission of HD video data and HD Audio data and how in Movie House, to come analog live broadcasting scene with the hearing experience of high-quality but without a whole set of perfect live broadcast system, for this, the interaction of star institute is also actively researching and developing seeking solution.
Utility model content
Therefore, for solving technological deficiency and the deficiency that prior art exists, the utility model proposes a kind of live audio-visual synchronization system of movie theatre.
Specifically, the live audio-visual synchronization system of a kind of movie theatre that this utility model embodiment proposes, it is suitable for use with the satellite system live required voice data of transmission movie theatre and video data, described system includes the data acquisition end, data transmission link, data receiver and the playback terminal that are sequentially connected with, and described data transmission link includes the satellite transmitting antenna, satellite repeater and the satellite receiver that sequentially communicate to connect, wherein:
Described data acquisition end includes video acquisition device and audio collecting device, described video acquisition device gathers multi-path video data and selects a road output to described data transmission link according to instruction, and described audio collecting device gathers multi-path audio-frequency data and to described multi-path audio-frequency data coded transmission to described data transmission link；
Described data receiver includes data decoder, video output interface, audio decoder, described data decoder one end electrically connects described data transmission link, the other end is electrically connected described video output interface and described audio decoder, for being respectively supplied to described video output interface and described audio decoder after the described video data transmission of described data transmission link come and described voice data decoded back；Described video output interface is by the video interface of described video data transmission to described playback terminal, and described audio decoder is by input after described voice data decoded back to the audio interface of described playback terminal.
On the basis of above-described embodiment, described video acquisition device includes video switcher and multiple picture pick-up device, described video switcher is electrically connected the plurality of picture pick-up device, for selecting video data transmission described in a road to described data transmission link from the plurality of picture pick-up device according to user instruction；
Described audio collecting device includes audio coder and multiple audio collection device, described audio coder is electrically connected the plurality of audio collection device, for the described voice data that the plurality of audio collection device collects is compressed and is transmitted to described data transmission link.
On the basis of above-described embodiment, described video switcher is video matrix switcher, and described audio coder is Dolby AC-3 audio coder.
On the basis of above-described embodiment, described data transmission link also includes data encoder, manipulator, upconverter and power amplifier, described data encoder, described manipulator, described upconverter, described power amplifier, described satellite transmitting antenna, described satellite repeater and described satellite receiver are sequentially connected with, and described data encoder also electrically connects described video switcher and described audio coder, for described video data and described voice data hybrid coding are formed a road audio, video data for transmission.
On the basis of above-described embodiment, described data transmission link also includes data encoder, manipulator, upconverter and power amplifier, described data encoder, described manipulator, described upconverter, described power amplifier, described satellite transmitting antenna, described satellite repeater and described satellite receiver are sequentially connected with, and described data encoder also electrically connects described video switcher and described audio coder, for described video data and described voice data hybrid coding are formed a road audio, video data for transmission.
On the basis of above-described embodiment, described data receiver also includes frequency demultiplier, described frequency demultiplier is electrically connected between described satellite receiver and described data decoder, rf data for the transmission of described satellite receiver is come carries out down conversion process, and transmits the data after down conversion process to described data decoder.
On the basis of above-described embodiment, described frequency demultiplier is lnb, and described data decoder is H.264/H.265 high definition decoder, and described video output interface is HDMI and/or HDSDI interface, and described audio decoder is Dolby AC-3 audio decoder.
On the basis of above-described embodiment, AES/EBU transmission line between described data decoder with described audio decoder, is adopted to be connected.
On the basis of above-described embodiment, described playback terminal is scialyscope or LED display system.
The live audio-visual synchronization system of a kind of movie theatre that this utility model provides, by live video and audio frequency independent acquisition and combine packing, and utilizes satellite link to complete the transmission of quality data, it is achieved the synchronization of movie theatre is play.Additionally, the live audio-visual synchronization system of movie theatre based on the interaction exploitation of star institute, movie theatre can not only be realized live, more can guarantee that the high grade picture at movie theatre scene and high-fidelity audio, spectators are enable to enjoy strong sound visual impact sense at movie theatre, particularly under the current pattern that concert is moved into movie theatre, spectators' demand at live middle pursuit presence more can be met.
By the detailed description below with reference to accompanying drawing, other side of the present utility model and feature become apparent upon.It is understood that this accompanying drawing is only the purpose design of explanation, not as the restriction of scope of the present utility model, this is because it should refer to appended claims.It should also be noted that unless otherwise noted, it is not necessary to scale accompanying drawing, they only try hard to structure described herein and flow process are described conceptually.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.
Fig. 1 is the structural representation of the live audio-visual synchronization system of movie theatre of this utility model embodiment.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.
Refer to Fig. 1, Fig. 1 is the structural representation of the live audio-visual synchronization system of movie theatre of this utility model embodiment, the live audio-visual synchronization system of this movie theatre can include data acquisition end 11, data transmission link 12, data receiver 13 and playback terminal 14, wherein, data acquisition end 11, data transmission link 12, data receiver 13 and playback terminal 14 are sequentially connected with, and this data acquisition end 11 can include video acquisition device 111 and audio collecting device 112, this data transmission link 12 can include sequentially signal and connect data encoder 121, manipulator 122, upconverter 123, power amplifier 124, satellite transmitting antenna 125, satellite repeater 126 and satellite earth antenna 127, this data receiver 13 can include the frequency demultiplier 131 being sequentially connected, data decoder 132 and video output interface 133, also include the audio decoder 134 and the audio frequency amplifier 135 that are sequentially connected with this decoder module 132, this playback terminal 14 can be scialyscope, it can also be LED display system, do not limit herein.
Specifically, video acquisition device 111 and audio collecting device 112 in this data acquisition end 11 are respectively used to gather video data and the voice data at live scene, wherein, video acquisition device 111 can be include multiple picture pick-up device 1111 and the video switcher 1112 being connected with the plurality of picture pick-up device 1111, and this picture pick-up device 1111 is such as rocking arm video camera, high-speed camera, network direct broadcasting video camera etc. can quickly transmit high-quality camera head, this video switcher 1112 is for using the data encoder 121 that a certain road video data exports rear class electrical connection of specifying in the multiple picture pick-up devices 1111 collected for movie theatre on-the-spot broadcasting according to user instruction, it can be traditional video switcher, can also be the video switcher integrated with on-the-spot instructor in broadcasting, no limitations are hereby intended, additionally, this video switcher 1112 can adopt standard snap-fit adapter (BayonetNutConnector, it is called for short BNC) interface, preferably, this video switcher 1112 is video matrix switcher, this have the advantage that, video matrix switcher possesses automatic gain technology, with power-off scene protection function, ensure that the advantages such as the display switching of high resolution graphics image signal simultaneously.
Audio collecting device 112 can include multiple audio collection device 1121 and the audio coder 1122 being connected with the plurality of audio collection device 1121, wherein, this audio collection device 1121 is preferably corresponding multiple high performance mike MIC_FL, MIC_FR, MIC_C, MIC_BL, MIC_BR etc., this audio coder 1122 is for exporting the data encoder 121 electrically connected to rear pole for the live use of movie theatre after the multiple voice datas collected are encoded process, and this audio coder 1122 is preferably Dolby AC-3 (DolbySurroundAudioCoding-3) audio coder, this have the advantage that, form owing to ambiophonic system is added a subwoofer sound channel by five full frequency-domain sound channels, its five sound channels include preposition L channel FL, R channel FR, center channels C, a rearmounted left side surrounds sound channel BL and right surround sound channel BR, frequency range is full frequency-domain response 3-20000Hz, its subwoofer sound channel is mainly used in providing some scenes such as blast, the speciality audio of strike note etc., frequency range is 3-120Hz, and utilize AC-3 audio coder that the information of 6 sound channels can be made to make and whole digitizeds in reduction process, information loss is little, the details of full frequency band is very abundant, the audio at the scene of can reducing well.
Currently, audio, video data based on movie theatre live transmission is all either directly through camera acquisition, namely it is transferred to Movie House after audio frequency and video mixing compression, as adopted the mode of mixing TV signal, and the audio frequency and video blended data that this mode is made, audio frequency effect and the video effect shown after movie theatre end decoding process all cannot meet current viewing demand, therefore, the Voice & Video that this utility model adopts separates the mode gathered, by independent to video data and voice data capturing and coding, the data being capable of collecting are HD video data and HD Audio data.
In data transmission link 12, this data encoder 121 is encoded preparing against for video data data acquisition end collection come and voice data and transmits in data transmission link 12, this data encoder 121 is preferably H.264 high definition (such as 1920*1080) encoder, owing to it possesses significantly high data compression ratio, encoder complexity is low, it is not easy the advantages such as packet loss, it is possible to meet the transmission of high-quality audio, video data；This manipulator 122 is for being converted into radiofrequency signal by the traffic spike after data encoder encodes, and this manipulator 122 is preferably DVB (DigitalVideoBroadcasting is called for short DVB) manipulator；This upconverter 123 for the frequency spectrum frequency displacement of the radiofrequency signal after manipulator 122 is processed to required higher carrier frequencies such as 11.3G, for instance for radio-frequency-up-converter；This power amplifier 124 carries out power amplification for the carrier radio frequency signal after upconverter 123 being processed and is transmitted for satellite antenna, for instance for C/Ku wave band high power amplifier.This star transmitting antenna 125, satellite repeater 126 and satellite earth antenna 127 are for the rf data transmitted after power amplifier 124 processes and are transmitted in this data receiver 13 to complete the transmission of on-the-spot audio, video data.
In this data receiver 13, this frequency demultiplier 131 processes obtain Voice & Video data for the high-frequency transmission data received is done frequency reducing and low noise amplification, this frequency demultiplier 131 is such as lnb (Low-NoiseBlockconverter, it is called for short LBN), include low noise frequency converter and low-converter inside it；This data decoder 132 is for respectively obtaining HD video data and HD Audio data to the Voice & Video decoding data after frequency demultiplier 131 processes, afterwards video data is sent to this video output interface 133 and exports the scialyscope to movie theatre or LED display system for this video output interface 133, and voice data is sent to this audio decoder 134, the voice data decoding high-fidelity for this audio decoder 134 transmits to this audio frequency amplifier 135, reduced the audio signal of input without distortions by this audio frequency amplifier 135 again to export for the stereo set of movie theatre, wherein, this data decoder 132 is such as H.264 high definition decoder, this video output interface 133 is such as HDMI (HighDefinitionMultimediaInterface, it is called for short HDMI) interface and/or (HighDefinitionSerialDigitalInterface, it is called for short HDSDI) interface, this audio decoder 134 is such as Dolby AC-3 audio decoder 134, this audio frequency amplifier 135 can also be audio-frequency power amplifier.
Preferably, AES/EBU transmission line is adopted between this data decoder 132 and this audio decoder 134, this have the advantage that, AES/EBU (AudioEngineeringSociety/EuropeanBroadcastUnion) transmission line is coaxial line, its need not balanced can at the distance transmitting data up to 100m, if it is balanced, it is possible to transmit farther distance, and ensure that voice data is lossless.
In the present embodiment, the multi-channel video output interface 133 live broadcasting for movie theaters multiple in same movie theatre can be set, certainly may also set up multichannel data receiving terminal 13 to play for the synchronization of the multiple movie theaters belonged in same satellite earth antenna 127 coverage, play alternatively, it is also possible to arrange multiple satellite earth antenna 127 for the synchronization of movie theatre in China.
The present embodiment, by by live video and audio frequency independent acquisition and combine packing transmission, and utilizes satellite link to complete the transmission of high-quality audio, video data, it is achieved the synchronization of movie theatre is play.Additionally, the live audio-visual synchronization system of movie theatre based on the interaction exploitation of star institute, movie theatre can be realized live, can guarantee that again the high grade picture of movie theatre and high-fidelity audio and be capable of the synchronization of audio frequency and video, enable a viewer to enjoy strong sound visual impact at movie theatre, more can guarantee that, particularly under the current pattern that concert is moved into movie theatre, the presence on the spot in person that spectators pursue.
In sum, principle and the embodiment of the live audio-visual synchronization system of this utility model movie theatre are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method of the present utility model and core concept thereof；Simultaneously; for one of ordinary skill in the art; according to thought of the present utility model; all will change in specific embodiments and applications; in sum; this specification content should not be construed as restriction of the present utility model, and protection domain of the present utility model should be as the criterion with appended claim.
Claims (9)
1. the live audio-visual synchronization system of movie theatre, including the data acquisition end, data transmission link, data receiver and the playback terminal that are sequentially connected with, and described data transmission link includes the satellite transmitting antenna, satellite repeater and the satellite receiver that sequentially communicate to connect, it is characterised in that:
Described data acquisition end includes video acquisition device and audio collecting device, described data receiver includes data decoder, video output interface, audio decoder, described data decoder one end electrically connects described data transmission link, and the other end is electrically connected described video output interface and described audio decoder.
2. the system as claimed in claim 1, it is characterised in that described video acquisition device includes video switcher and multiple picture pick-up device, and described video switcher is electrically connected the plurality of picture pick-up device；Described audio collecting device includes audio coder and multiple audio collection device, and described audio coder is electrically connected the plurality of audio collection device.
3. system as claimed in claim 2, it is characterised in that described video switcher is video matrix switcher, and described audio coder is Dolby AC-3 audio coder.
4. system as claimed in claim 2, it is characterized in that, described data transmission link also includes data encoder, manipulator, upconverter and power amplifier, described data encoder, described manipulator, described upconverter, described power amplifier, described satellite transmitting antenna, described satellite repeater and described satellite receiver are sequentially connected with, and described data encoder also electrically connects described video switcher and described audio coder.
5. system as claimed in claim 4, it is characterised in that described data encoder is H.264 high definition encoder, and described manipulator is DVB manipulator, and described upconverter is radio-frequency-up-converter, and described power amplifier is C/Ku wave band high power amplifier.
6. system as claimed in claim 4, it is characterised in that described data receiver also includes frequency demultiplier, and described frequency demultiplier is electrically connected between described satellite receiver and described data decoder.
7. system as claimed in claim 6, it is characterized in that, described frequency demultiplier is lnb, and described data decoder is H.264/H.265 high definition decoder, described video output interface is HDMI and/or HDSDI interface, and described audio decoder is Dolby AC-3 audio decoder.
8. the system as claimed in claim 1, adopts AES/EBU transmission line to be connected between described data decoder with described audio decoder.
9. the system as claimed in claim 1, it is characterised in that described playback terminal is scialyscope or LED display system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620115117.9U CN205356529U (en) | 2016-02-05 | 2016-02-05 | Live sound video synchronization system of cinema |
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| CN201620115117.9U CN205356529U (en) | 2016-02-05 | 2016-02-05 | Live sound video synchronization system of cinema |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875759A (en) * | 2017-03-10 | 2017-06-20 | 重庆工业职业技术学院 | A kind of foreign language multimedia teaching Non-connecting audio/video of mobile phone amplifying device and its application method |
| CN107197320A (en) * | 2017-06-21 | 2017-09-22 | 北京小米移动软件有限公司 | Net cast methods, devices and systems |
| CN109814406A (en) * | 2019-01-24 | 2019-05-28 | 成都戴瑞斯智控科技有限公司 | A kind of data processing method and decoder architecture of the automatically controlled analogue system of model trajectory |
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2016
- 2016-02-05 CN CN201620115117.9U patent/CN205356529U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875759A (en) * | 2017-03-10 | 2017-06-20 | 重庆工业职业技术学院 | A kind of foreign language multimedia teaching Non-connecting audio/video of mobile phone amplifying device and its application method |
| CN107197320A (en) * | 2017-06-21 | 2017-09-22 | 北京小米移动软件有限公司 | Net cast methods, devices and systems |
| CN109814406A (en) * | 2019-01-24 | 2019-05-28 | 成都戴瑞斯智控科技有限公司 | A kind of data processing method and decoder architecture of the automatically controlled analogue system of model trajectory |
| CN109814406B (en) * | 2019-01-24 | 2021-12-24 | 成都戴瑞斯智控科技有限公司 | Data processing method and decoder framework of track model electronic control simulation system |
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| C14 | Grant of patent or utility model | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Live sound video synchronization system of cinema Effective date of registration: 20180930 Granted publication date: 20160629 Pledgee: Du Shiyang Pledgor: Ding Feng Registration number: 2018990000918 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181029 Granted publication date: 20160629 Pledgee: Du Shiyang Pledgor: Ding Feng Registration number: 2018990000918 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20181113 Address after: 710026 Shaanxi Xi'an international port area Internet of things application Industrial Park integrated office building No. 209 Patentee after: Xi'an Star Interactive Culture Technology Co., Ltd. Address before: 710000 Qujiang city garden, Yanta Road, Yanta District, Xi'an, Shaanxi 1, 2-201 Patentee before: Ding Feng |
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Granted publication date: 20160629 Termination date: 20190205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |