Basic Principles of Virtual Studio:

The so-called virtual studio technology is to replace the video background with the color key matting technology, and then replace the blue box background with the two or three-dimensional scenes produced by the computer. Using the computer three-dimensional graphics technology and video synthesis technology, according to the position and focal length of the foreground camera and other parameters, the relationship between the three-dimensional virtual scene and the foreground is kept in line, and the three-dimensional virtual scene is synthesized by the color keyer. The characters and props in the foreground seem to be completely in the virtual scene generated by the computer, thus creating a realistic and three-dimensional studio effect.

Composition of Virtual Studio:

The virtual studio system consists of subsystems such as video, audio, virtual, call, tally, and blue box lighting. A brief description of its workflow is to build a blue box in the studio instead of the background of the live broadcast area for high uniformity. The camera captures the foreground video signal of the host on the blue box and inputs it into the virtual studio system host. At the same time, the camera motion parameters collected by the camera tracking system are sent to the virtual scene generation system. The system generates corresponding virtual scenes in real time according to these parameters, so that the spatial relationship between the background and the foreground is consistent. The foreground signal is chromatographed, the blue box is replaced with a virtual scene made by the computer, and then combined with the foreground mask to form a program output. In this way, the producer can create a plurality of different styles of programs on one site and one virtual device, and the scene can be modified at any time and at any time.

Camera Section:

The 2 to 3 position camera system is used to realize the production of news broadcast and interview programs. The basis of the studio system is based on advanced digital camera technology. The camera equipment selects 3 sets of professional digital cameras with tripods.

(The position can be flexibly moved to facilitate shooting of different programs).

Audio Part:

It mainly includes the lavalier microphone and desktop microphone used by the host and the guest, and also includes the communication system between the guide and the host and the cameraman.

Virtual Studio Equipment:

Adopting Tianchuangzhen 3D trackless virtual broadcast system is a cost-effective and comprehensive solution: 4 channels of cameras and 8 channels can be connected in the 

field, combined with guide, subtitles, logos, images, and dozens of 3D scenes. The live broadcast brings a visually impactful virtual studio system.

Late Video Non-linear Editing Equipment:

Recorded programs can be further edited and edited through a professional non-linear editing system.

Webcast On-demand Platform (Realizing Webcast):

The signal can be encoded and webcasted while the program is being produced, or the program can be recorded for on-demand viewing.

Studio Blue Box:

The virtual blue box is an open box with no right angle and smooth and even arc processing. It is an essential part of the virtual studio. Its function is to use virtual images to provide a pure background image.

The person or the object appears in the blue box, and the virtual studio separates the background color of the solid color by the color key image technology, so as to add the person or object to any custom three-dimensional scene to realize the virtual studio. Simulate the packaging effect.

Studio Lighting System Equipment:

1.The overall lighting system, the overall lighting system adjusts the angle of the light, making the dimming more flexible and convenient. Due to the wide width of the room, four fixed rails are provided, making dimming flexible and easy to upgrade in the future.

2.Using the ring type lighting method, its illumination is uniform, no obvious cross shadow and glare, and the light-emitting area is large, the outline is obvious, the picture has a sense of depth, the character has a strong sense of three-dimensional, the picture is clear and natural, and the color is beautiful.

3.Background light: the use of three primary color cold light as a backlight, the curtain is evenly illuminated, light effect, no obvious cross shadow.

4.Backlight: the use of three primary color cold light for backlighting, so that the outline is prominent, the characters are more abundant and natural, and the three-dimensional sense.

5.The main light: the host used the three primary color cold light as the main light, so that the host's facial light is even, the picture is clear and natural. And equipped with 1m constant force hinge, making dimming more flexible and convenient.

6.Side pay light: the host has three primary colors of cold light to do side light, to soften the dead angle, the negative angle of the main light and soften the host's neck shadow.

From the overall lighting, the background and contour light make the picture have a sense of depth, and the background illumination has no obvious cross-shadow, which is conducive to the production of the program, the center illumination is uniform, and meets the standards of the studio.

In order to meet the effect of program production and extend the life of the light source, the three primary color cold light tubes are all imported lamps (lifetime 10,000 hours. The lamp is replaced within three years, and the lamp body is guaranteed within two years.

Architectural Acoustic Design Content Mainly Includes The Following Aspects:

According to the function of the studio and the studio, the sound quality indicators of the room acoustic design are determined, so that each room has a good acoustic environment and avoid some common acoustic defects;

The corresponding architectural acoustic treatment schemes are proposed for the studio, the recording studio and its control room, mainly including the determination of the sound insulation performance indicators of the envelope structure and the measures for improving the sound insulation capacity of the envelope structure, including the sound insulation wall,Structural requirements for sound insulation ceilings, etc. The calculation of the reverberation time in the acoustic room, the number of sound absorbing materials required, the configuration and arrangement, and the like;

Sound  Insulation and Sound Absorption:

In order to meet the needs of recording/camera and quiet, the control of environmental noise is also an important issue that must be considered in the design of sound. The environmental noise comes from the surrounding air-conditioned room (should take anti-vibration measures), ambient noise, air conditioning air outlet noise (muffler should be used), safety indicator light, lighting system and sound reinforcement system noise. To this end, the partition wall must be separated by a double-layer acoustic brick wall of at least 240 mm thick; in addition, appropriate sound absorption measures should be taken on the surface such as the rear wall.

Sound construction design and decoration art achieve complete and harmonious unity

In order to meet the acoustic characteristics of the hall, Jiansheng design often conflicts with the artistic effect requirements of the treatment of each wall. This kind of contradiction can only be solved through the internal coordination of the contractor when the interior decoration and sound design department are in the same contractor.

Fire, mildew, anti-mite and non-toxic considerations

Sound construction materials must be non-toxic, fireproof, mildewproof, and anti-mite materials. The wood board material that must be used should be coated with a fire retardant coating to ensure safety.

The Basic Principle of Virtual Studio:

The so-called virtual studio technology is to use the color key keying technology to replace the video background, and then replace the blue box background that was removed by the color key with the second and third-dimensional scenes made by the computer, and use the computer three-dimensional graphics technology.