CN103731797B - A kind of digital camera audio processor with ten Hexamermis spp - Google Patents
A kind of digital camera audio processor with ten Hexamermis spp Download PDFInfo
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- CN103731797B CN103731797B CN201410030678.4A CN201410030678A CN103731797B CN 103731797 B CN103731797 B CN 103731797B CN 201410030678 A CN201410030678 A CN 201410030678A CN 103731797 B CN103731797 B CN 103731797B
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Abstract
The invention discloses a kind of digital camera audio processor with ten Hexamermis spp, pending audio signal enters audio decoding unit through audio input unit and carries out decoding or enter A/D converting unit and carry out analog-to-digital conversion, export the digital audio and video signals obtained after above-mentioned process to DSP processing unit, DSP processing unit processes above-mentioned digital audio and video signals in conjunction with control unit, exports after afterwards the digital audio and video signals after process being carried out digital-to-analogue conversion through audio output unit.The present invention can carry out seamless link by the server of communications interface unit and TMS digital camera management system, digital camera audio processor involved in the present invention has 16 passages, the broadcasting demand of 3D and huge curtain film can be met, and it is high to have reliability, audio is good, the feature that data processing speed is fast.
Description
Technical field
The present invention relates to audio frequency process, particularly relate to a kind of digital camera audio processor with ten Hexamermis spp.
Background technology
3D and huge curtain film rely on its perfect audio and visual effect, obtain the extensive favor of spectators, such as whole day territory sound field 11.1 sound channel, 13.1 channel film stereophonic sound systems, can build broader three-dimensional sound field, make each spectators can be on the spot in person, experience perfect 3D audio.
3D and huge curtain film increase day by day to multichannel demand, and also more and more higher to the requirement of audion technic.But in the market 6 channel audio processors of 5.1 sound channels or 8 channel audio processors of 7.1 sound channels, huge screen cinema whole day territory sound field 11.1 sound channel can not be met, the demand of 13.1 channel film stereophonic sound systems, nor seamless link can be realized with digital cinema server, finally result in TMS digital camera management system can not to the unified management of digital camera audio processor.
Summary of the invention
The object of the present invention is to provide a kind of digital camera audio processor with ten Hexamermis spp, the broadcasting demand of 3D and huge curtain film can be met, and seamless link can be realized with the server of TMS digital camera management system, be convenient to TMS digital camera management system to the unified management of digital camera audio processor.
For achieving the above object, the present invention proposes a kind of digital camera audio processor with ten Hexamermis spp, described digital camera audio processor comprises
Communications interface unit, for communicating to connect with external device, and is sent to control unit by the signal from external device;
Control unit, analyzes the signal from described communications interface unit, and transmits control signal to memory cell according to analysis result;
Memory cell, inquires about according to the control signal from described control unit the deal with data pre-set, and this deal with data is sent to DSP processing unit;
Audio input unit, for receiving 16 road audio input signals, wherein said audio input signal comprises digital audio and video signals and simulated audio signal;
Audio decoding unit, for decoding to from the digital audio and video signals in described audio input unit, and is sent to DSP processing unit by decoded digital audio and video signals;
A/D converting unit, for carrying out analog-to-digital conversion to from the simulated audio signal in described audio input unit, and is sent to DSP processing unit by the digital audio and video signals formed after conversion;
DSP processing unit, according to the deal with data from described memory cell, described digital audio and video signals is processed, and the signal after process is sent to D/A converting unit, wherein said processing procedure comprises that channel gain regulates, 16X16 matrix signal selects process, 31 sections of equilibrium treatment, around delay process, 16 sound channels interlock process, scaling down processing;
D/A converting unit, for carrying out digital-to-analogue conversion to the digital audio and video signals from described DSP processing unit, and is exported the simulated audio signal after conversion by audio output unit;
Power subsystem, for providing working power to above each unit.
Preferably, described audio input unit comprises digital signal input interface and analog input interface.
Preferably, described digital signal input interface comprises coaxial signal input interface, fiber-optic signal input interface and 16 railway digital movies signal input interfaces.
Preferably, described analog input interface comprises 16 road analog motion picture signal input interface, microphone signal input interface and CD/DVD signal input interfaces.
Preferably, described audio decoding unit comprises DVDSPDIF decoding unit and AES/EBU decoding unit, and wherein said DVDSPDIF decoding unit is used for from described coaxial signal input interface, and the digital audio and video signals of fiber-optic signal input interface is decoded; Described AES/EBU decoding unit is used for decoding to the digital audio and video signals from described digital movie signal input interface.
Preferably, described scaling down processing comprises three kinds of frequency division pattern, i.e. full range, two divided-frequency and three frequency divisions.
Preferably, described communications interface unit comprises USB interface and RJ45 cable interface.
Preferably, described digital camera audio processor also comprises panel and controls push-button unit and display touch screen unit, and it is for providing touch interface, makes operator can by control unit described in this unit triggers.
Beneficial effect of the present invention is the setting by above-mentioned digital camera audio processor, make it have reliability high, audio is good, the feature that data processing speed is fast, the broadcasting demand of 3D and huge curtain film can be met, and seamless link can be realized with the server of TMS digital camera management system, be convenient to TMS digital camera management system to the unified management of digital camera audio processor.
Accompanying drawing explanation
Fig. 1 shows the composition frame chart of digital camera audio processor involved in the present invention.
Fig. 2 shows the process block diagram of DSP processing unit involved in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, audio input unit 1 is comprised according to digital camera audio processor involved in the present invention, audio decoding unit 2, A/D converting unit 3, DSP processing unit 4, memory cell 5, control unit 6, panel controls push-button unit and display touch screen unit 7, D/A converting unit 8, audio output interface 9, communications interface unit 10 and power subsystem 20.
Power subsystem 20 pairs of control units 6 and communications interface unit 10 are powered; Control unit 6 respectively with audio input unit 1, audio decoding unit 2, A/D converting unit 3, memory cell 5, panel controls push-button unit and display touch screen unit 7, D/A converting unit 8, and communications interface unit 10 is connected; Memory cell 5 is also connected with DSP processing unit 4; Audio input unit 1 comprises digital signal input interface 11 and analog input interface 12, and described digital signal input interface 11 is connected with audio decoding unit 2; Described analog input interface 12 is connected with A/D converting unit 3; Audio decoding unit 2 and A/D converting unit 3 are also connected to DSP processing unit 4; DSP processing unit 4 is also connected with D/A converting unit 8; D/A converting unit 8 is connected with audio output interface 9.
Described communications interface unit 10 connects for the server of the TMS digital camera management system with the external world, so that transmission of control signals between the server and control unit 6 of TMS digital camera management system, wherein said communications interface unit 10 can comprise two kinds of interfaces, USB interface and RJ45 interface.
Described panel controls push-button unit and display touch screen unit 7 for providing touch interface, makes operator can by this unit triggers control unit 6.
Described digital signal input interface 11 comprises coaxial signal input interface, fiber-optic signal input interface and 16 railway digital movies signal input interfaces; Described analog input interface 12 comprises 16 road analog motion picture signal input interface, microphone signal input interface and CD/DVD signal input interfaces.
Described audio decoding unit 2 comprises DVDSPDIF decoding unit and 8 groups of AES/EBU decoding units, and wherein said DVDSPDIF decoding unit is used for decoding to the audio signal from coaxial signal input interface and fiber-optic signal input interface; Described AES/EBU decoding unit is decoded to the audio signal from digital movie signal input interface.
Described A/D converting unit 3 is for carrying out analog-to-digital conversion to the signal from analog input interface 12.
It is pending that signal after above-mentioned decoded signal and analog-to-digital conversion is all sent to DSP processing unit 4 etc.
Described control unit 6 is for the control signal to the server from TMS digital camera management system or analyze through the control signal that panel control push-button unit and display touch screen unit 7 trigger, and inquires the data set to memory cell 5 according to analysis result.
Described DSP processing unit 4, for according to the above-mentioned data set inquired, processes pending digital audio and video signals, concrete handling process as shown in Figure 2:
Be described for the processing procedure of the audio signal in single channel below.
After pending digital audio and video signals enters into described DSP processing unit 4, according to the above-mentioned data set inquired in memory cell 5, channel gain adjustment is carried out successively to pending digital audio and video signals, 16X16 matrix signal selects process, channel gain regulates, 31 sections of equilibrium treatment, around delay process, 16 sound channels interlock process, scaling down processing.Below various processes is described:
Channel gain regulates: through coaxial signal input interface, and the digital signal of fiber-optic signal input interface input passes through analog-to-digital 16 passages of A/D by decoding or analog signal, the function that each passage has-18dB to control to+6dB autonomous channel gain-adjusted.
16X16 matrix signal selects process: the signal of 16 passages selects process by 16X16 matrix signal, and the signal of 16 passages is free to distribute to arbitrarily different passage or all same channels.16X16 matrix signal selects process to facilitate distribution and the switching of signalling channel.
Channel gain regulates: again to each passage separate gain regulable control after being processed by the selection of 16X16 matrix signal.Each sound channel amplifying signal is below made to meet the requirement of sound field acoustic pressure.
31 sections of equilibrium treatment: each passage has the equilibrium treatment of 31 sections ± 12dB gain-adjusted.Regulate audio signal audio, revise environmental sound field, regulate each passage separately, make it to reach best sound field effect.
Around delay process: each signal can select delay process, the time span of time delay is adjustable, and after selecting time delay, the signal data of this passage is sent into memory cell 5 and stored, control unit 6 controls the time returned according to the signal data of memory cell 5, to carry out the regulable control of delay time.To needing the passage doing delay process, time delay adjustable correction sound field time and phase place.
16 sound channel interlock process: the 16 sound channel interlocks of 0 to 10 regulate process, and can regulate the wave volume size of all sound channels, be silence processing when being transferred to 0 simultaneously.
Scaling down processing: comprise full range, two divided-frequency and three frequency division three kinds of frequency division patterns.Be that signal leads directly to when selecting full range; Select two divided-frequency time be High(high pitch), LOW(bass) passage export; Select three frequency division time be High(high pitch), Mid(middle pitch), LOW(bass) passage export.Each passage can select full range, two divided-frequency, three frequency division three kinds of frequency division patterns, if therefore 16 passages all select full range Jiu You 16 tunnel to export; If two divided-frequency Jiu You 32 tunnel exports; If three frequency division Jiu You 48 tunnel exports.Part-frequency point can be selected to arrange, the convenient sound box system with the use of different theatre environment.
Described D/A converting unit 8 is for carrying out digital-to-analogue conversion to the digital audio and video signals from DSP processing unit 4.
Described audio output interface 9 is for exporting the simulated audio signal from D/A converting unit 8.
Digital camera audio processor involved in the present invention has the following advantages:
(1) there are 16 passages, 16 road audio input signals can be processed;
(2) seamless link can be realized with the server of TMS digital camera management system;
(3) reliability is high, and audio is good, and the processing speed of data is fast;
(4) be convenient to install, safeguard.
Claims (7)
1. there is a digital camera audio processor for ten Hexamermis spp, it is characterized in that: described digital camera audio processor comprises
Communications interface unit, for communicating to connect with external device, and is sent to control unit by the signal from external device;
Control unit, analyzes the signal from described communications interface unit, and transmits control signal to memory cell according to analysis result;
Memory cell, inquires about according to the control signal from described control unit the deal with data pre-set, and this deal with data is sent to DSP processing unit;
Audio input unit, for receiving 16 road audio input signals, wherein said audio input signal comprises digital audio and video signals and simulated audio signal;
Audio decoding unit, for decoding to from the digital audio and video signals in described audio input unit, and is sent to DSP processing unit by decoded digital audio and video signals;
A/D converting unit, for carrying out analog-to-digital conversion to from the simulated audio signal in described audio input unit, and is sent to DSP processing unit by the digital audio and video signals formed after conversion;
DSP processing unit, according to the deal with data from described memory cell, described digital audio and video signals is processed, and the signal after process is sent to D/A converting unit, wherein said processing procedure comprises that channel gain regulates, 16X16 matrix signal selects process, 31 sections of equilibrium treatment, around delay process, 16 sound channels interlock process, scaling down processing;
D/A converting unit, for carrying out digital-to-analogue conversion to the digital audio and video signals from described DSP processing unit, and is exported the simulated audio signal after conversion by audio output unit;
Power subsystem, for providing working power to above each unit; Described communications interface unit comprises USB interface and RJ45 cable interface.
2. the digital camera audio processor with ten Hexamermis spp according to claim 1, is characterized in that: described audio input unit comprises digital signal input interface and analog input interface.
3. the digital camera audio processor with ten Hexamermis spp according to claim 2, is characterized in that: described digital signal input interface comprises coaxial signal input interface, fiber-optic signal input interface and 16 railway digital movies signal input interfaces.
4. the digital camera audio processor with ten Hexamermis spp according to claim 2, is characterized in that: described analog input interface comprises 16 road analog motion picture signal input interface, microphone signal input interface and CD/DVD signal input interfaces.
5. the digital camera audio processor with ten Hexamermis spp according to claim 3, it is characterized in that: described audio decoding unit comprises DVDSPDIF decoding unit and AES/EBU decoding unit, wherein said DVDSPDIF decoding unit is used for from described coaxial signal input interface, and the digital audio and video signals of fiber-optic signal input interface is decoded; Described AES/EBU decoding unit is used for decoding to the digital audio and video signals from described digital movie signal input interface.
6. the digital camera audio processor with ten Hexamermis spp according to claim 1, is characterized in that: described scaling down processing comprises three kinds of frequency division pattern, i.e. full range, two divided-frequency and three frequency divisions.
7. the digital camera audio processor with ten Hexamermis spp according to claim 1, it is characterized in that: described digital camera audio processor also comprises panel and controls push-button unit and display touch screen unit, it is for providing touch interface, makes operator can by control unit described in this unit triggers.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105717834A (en) * | 2016-01-29 | 2016-06-29 | 广州市昇博电子科技有限公司 | DSP digital audio processing method |
| CN106535047A (en) * | 2016-12-21 | 2017-03-22 | 深圳Tcl数字技术有限公司 | Audio processing device and method |
| CN106991993A (en) * | 2017-05-27 | 2017-07-28 | 佳木斯大学 | A kind of mobile communication terminal and its composing method with music composing function |
| CN110493702B (en) * | 2019-08-13 | 2021-06-04 | 广州飞达音响股份有限公司 | Six-face sound cinema sound returning system |
| CN112637739A (en) * | 2020-12-17 | 2021-04-09 | 深圳市环球数码科技有限公司 | Cinema audio input and output device, method and system |
| CN113301443A (en) * | 2021-05-28 | 2021-08-24 | 广州飞达音响股份有限公司 | Film processor |
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| CN101567183A (en) * | 2008-04-25 | 2009-10-28 | 何欢潮 | Digital camera audio processor |
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| CN202856959U (en) * | 2012-09-25 | 2013-04-03 | 南京中广华夏影视科技有限公司 | Cinema digital film audio processor |
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| CN101567183A (en) * | 2008-04-25 | 2009-10-28 | 何欢潮 | Digital camera audio processor |
| CN201577096U (en) * | 2009-12-01 | 2010-09-08 | 上海东方明珠传输有限公司 | Multi-channel audio automatic alternate monitor |
| CN202353798U (en) * | 2011-12-07 | 2012-07-25 | 广州声德电子有限公司 | Audio processor of digital cinema |
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Address after: 510000, Guangzhou, Guangdong province Huadu District charcoal step Feida Industrial Park Applicant after: FIRST AUDIO MANUFACTURING Co.,Ltd. Address before: 510000, Guangzhou, Guangdong province Huadu District charcoal step Feida Industrial Park Applicant before: GUANGZHOU FIDEK PROFESSIONAL AUDIO EQUIPMENT Co.,Ltd. |
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Address after: 510000, Guangzhou, Guangdong province Huadu District charcoal step Feida Industrial Park Patentee after: Guangzhou Feida Audio Co.,Ltd. Address before: 510000, Guangzhou, Guangdong province Huadu District charcoal step Feida Industrial Park Patentee before: FIRST AUDIO MANUFACTURING Co.,Ltd. |