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video conferencing
Par:
sufiyan
Setting up a room for Video conferencing
Videoconferencing equipment does require room. Video conferencing rooms are rooms facilitated to accommodate meetings between people in different locations or countries. These rooms, along with videoconferencing public rooms, enable people to combine the technology of both sound and vision to interact with each other. A video conferencing room should emulate the traditional conference
Lighting: Lighting in the videoconferencing space is key to delivery of a good quality image. The best lighting to use is diffuse fluorescent lighting. It is important to minimize shadows in videoconference rooms and to create an evenly lit environment so that all participating people can be captured by the camera. To enhance the appearance of skin tones and to minimize annoying shadows, lights with a color of 3500 Kelvin should be used.
It is best for the room to not have any windows facing outside as incoming light can interfere with any light settings and arrangements.
Effort should be put into establishing uniform lighting in the room, and using curtains or opaque blinds to cover the windows will help. Another often overlooked issue is the color of clothing that the speakers are wearing. They should be pale colors, which do not have a high degree of contrast in comparison to the human face colors. Very dark clothing colors show even darker and in fact may create an unattractive image of the speaker.
Interior Room Design: When considering the interior design of the videoconferencing space, the primary goals should be to make the room as comfortable as possible, de-emphasizing the technology in the room and making the user interface to the system uniform and predictable.
Specific colors are recommended for backgrounds and wall covering to enable better recognition of attendees without straining the capture capabilities of the video camera. A neutral non-white color such as a grey tone is the best color for the walls in video conferencing rooms. Light grey, blue or beige can also be used. There should be no patterned wallpaper or items with busy colorful prints in the area that is to be filmed. This can also cause disturbance.
When considering furniture and walls be aware of color and physical characteristics that may make your video or audio input have to work harder.
Audio System: Audio quality is the most important factor for a successful video conferencing experience. If you cannot properly hear what is being said, there is no reason to have a meeting, therefore good acoustics are paramount.
The audio system has four major components: one or more microphones (and mixer if required); the loudspeaker system; the video codec and digital phone hybrid that handles the signal processing allowing full duplex (two way) conversation and transmission/reception of the signals; and the acoustic echo cancellation (to prevent the source station hearing itself amplified and re-transmitted from the receive location). The performance of the entire audio chain is directly tied to the room acoustics. The performance of the echo cancelling is directly tied to the decay of sound in the room, and the quality of microphone pickup is likewise affected by early reflections and reverberation.
It is also important to isolate the videoconferencing public rooms from external noise sources like fans and duct work from heating and cooling systems, water pipes, office machines, telephones, and street noise.
Microphones
Microphone placement plays an important part of the sense of distance between the talker and the receiving station.. A microphone has to be placed at least six feet from the system speakers. Another microphone is placed ten feet from the first. A microphone cannot be farther than seven feet from a speaking person to ensure maximum audio quality and no more than three microphones can be used in a room.
James Wosloo the author of this article is the well known video conferencing products market researcher. He has helped many multi-national organizations in choosing the best and efficient video conference products especially Sony video conferencing to achieve organizational goals. video conferencing
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