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The virtual studio has been taken full advantages of by program producers .As the traditional program-making requires one studio for each program , the contradiction between increasing number of programs and limited number of studios is becoming more and more serious . The building ,demolishing ,moving and storing of props and backgrounds , which are wasting the time, money and space and causing the fireproofing difficulty , not only increase the budget but also reduce the efficiency of program-making .Just as these problems are haunting the television producers , the virtual reality technique found its way into radio and television production in the 1980s and derive the concept of virtual studio and then comes the actual useful virtual studio technique .The history of virtual studio is very short , its performance is far behind people ‘s expectations while its price far beyond most TV stations ‘ budget .Why are there more than 100 stations all over the world still eager to buy it ?The answer is its tempting advantages : economic characteristics of low budget , technical characteristics of keeping the correct perspective relation of foreground and background and the artistic characteristics of free creation based on imagination . The last characteristics is the most important one , as its unique artistic features gives the scene designer and producer enough freedom to be creative with their imagination ,which generates the virtual scenes that is impossible for physical and financial reasons of traditional studio . For the temptation of virtual studio in the aspect of program-making , it has already shown its strong vitality . After virtual studio has been used for television , programs are more intriguing and satisfying thanks to the rich and colorful images .

With the heat of virtual reality, the virtual technology has been push to the front row again. Now, the virtual technology has reached into many fields including video industry. In the field of video production, 3D virtual studio has been applied widely. The technology of real 3D is the most popular one. The real 3D virtual studio is a real-time broadcast standard virtual broadcasting system which is especially designed for the TV station and video production facilities. It has built-in multi-channel chroma-key card to accomplish multi-camera virtual studio system with independent parameter control. The technique of mechanical grating rotation encoder tracking can self-adapt and initialize position instantaneously and identify the depth of scene automatically without caring about the position of physical cameras, the position of hosts and the measuring and calculation. It has powerful 3D virtual rendering engine to support online editing of the sub-model of the dynamic scene. NSCaster supports four 3D virtual scene input channel, each virtual scene channel can choose 3D virtual scene and virtual shots. Each 3D virtual scene can setup multiple virtual shots by editor. The track of 3D virtual shots can be pushed and edited. Each virtual shot has four pre-set track point which can be switched between each other with a modifiable time slot. The scene can support up to four inputs and each input can relate to another one individually while the input can be set on TV wall or the surface of any virtual object with a adjustable size. Meanwhile, the device offers many sets of built-in virtual 3D scene for you to choose. With its outstanding 3D virtual technique, NSCaster will make your video more lively and dreamy and make the producing more convenience and of lots of fun. Led by NSCaster, Naga provides you a perfect live experience with our strong research and development strength and thoughtful service.

The main function• Master 8-channel display, multiple lights, four video loop out Interface• Full-duplex systems, external headphones, clear sound quality• Sub-system can transmit video, call, Tally signal• Front and rear panel with USB interface• 19-inch 1U chassis for easy installation• 1×8 intercom, can conncect with call station and sub-station announcer within the intercom systems,• A microphone switch and on and off warning lights.• The speaker conversion interface, can change to external high-quality speakers• Has an external command speaker interface for calling and commanding the studio directly, not account for the call interface• Support external headset microphone group.• Separating terminal blocks, no need welding for wiring, quick and easy • applicable for NSCaster Technical specifications [TABLE=class: t_table, width: 756] [TR] [TD] Test environment [/TD] [TD=width: 383] 300 meters transmission distance [/TD] [/TR] [TR] [TD=width: 126] Frequency [/TD] [TD=width: 383] 300-3.6KHz, ＜±3dB [/TD] [/TR] [TR] [TD=width: 126] THD [/TD] [TD=width: 383] ＜3％ [/TD] [/TR] [TR] [TD=width: 126] S/N [/TD] [TD=width: 383] ＞50dB [/TD] [/TR] [TR] [TD=width: 126] Product specification [/TD] [TD=width: 383] Host [/TD] [/TR] [TR] [TD=width: 126] Tally signal input [/TD] [TD=width: 383] Two sets of D-SUB 15PIN input interface [/TD] [/TR] [TR] [TD=width: 126] Singal output [/TD] [TD=width: 383] Four sets of XLR 7pin output interface [/TD] [/TR] [TR] [TD=width: 126] Sound output [/TD] [TD=width: 383] A set of microphone output interface, A set of headphone microphone output interface [/TD] [/TR] [TR] [TD=width: 126] General specification [/TD] [TD=width: 383] Microphone executive switch, can choose a solo set of call or multiple sets of call at the same time, mute function, full duplex function, volume control function, DC 12V input light display, two sets of Tally input interface, Tally A signal from the transmission input of sub machine 1-4 and Tally B signal from the transmission input of sub machine 5-8, provide sub-machine two-way conversation transmission, Tally signal and power supply [/TD] [/TR] [TR] [TD=width: 126] Dimension [/TD] [TD=width: 383] 44mm（H）× 140mm(W) × 482mm（L） [/TD] [/TR] [TR] [TD=width: 126] Weight [/TD] [TD=width: 383] 1.0 Kg [/TD] [/TR] [TR] [TD=width: 126] Power [/TD] [TD=width: 383] Input: AC 110 -220V automatic detection, Output: DC 12V/ 2A [/TD] [/TR] [TR] [TD=width: 126] Product specification [/TD] [TD=width: 383] Sub-machine [/TD] [/TR] [TR] [TD=width: 126] Singal output (input) [/TD] [TD=width: 383] One set of 7pin XLR interfac, one set of 3.5mmTALLY output interface, 1set of BNC video input interface [/TD] [/TR] [TR] [TD=width: 126] Sound output (input) [/TD] [TD=width: 383] 3.5mmstereo headphone microphone interface [/TD] [/TR] [TR] [TD=width: 126] General specification [/TD] [TD=width: 383] Power indicator light, call host function, sub machine to sub machine interactive function, full duplex function, headphone volume control, conversation start button, signal output interface with Tally red (orange) color light, LED Tally light display [/TD] [/TR] [TR] [TD=width: 126] Weight [/TD] [TD=width: 383] 0.35 Kg [/TD] [/TR] [TR] [TD=width: 126] Power [/TD] [TD=width: 383] Supplied by the host [/TD] [/TR] [/TABLE]