A&T Video Networks

FACTORS :

CORRECT ILLUMINATION :

It’s better to control room illumination by creating an ambience with artificial lighting
It’s strongly recommended to separate the area reserved for the speakers from the audience area
Concentrate artificial light on the area reserved for the speakers
Illuminate the rest of the room with soft light
Do not illuminate devices used as displays (monitors, projection screens, plasma
It’s suggested to darken the windows with curtains, better if made of materials that deaden also possible sound reverberations
Don’t use tables or furniture made of / laminated with materials that reflect the light

Suggested lighting parameters

Use lamps with a color temperature value of 3500° Kelvin
Brightness, measured as a reflection off the face of the speaker, should have a value of 500 Lux.

GOOD ACOUSTICS :

The following steps are suggested in order to avoid echoes and sound reverberation

Wood chairs,

marble floors

plasterboard false ceilings

big windows

solve possible acoustic problems by
- Covering walls, windows and/or glass surfaces with curtains and/or materials that deaden reverberations
- Covering the floor with fitted carpets (moquette)

BETTER BACKGROUND COLOURS:

To improve light distribution in the room, enhancing quality of video pictures, it’s suggested to choose curtains and/or upholstery with a light color (such as gray or light blue)
A good climate control is also recommended in order to ensure not only that the equipment operates properly, but also that the people using the room are comfortable.

NOTES :

Don’t place cameras facing light sources (avoid filming with backlighting)
Don’t place projection screens and/or monitors near lights or windows.
Don’t install loudspeakers near microphones
Wall mounted loudspeakers should be installed at an height from 2,20 to 2,50 meters to ensure a correct hearing
Never install loudspeakers behind the listeners: they could get confused.

For more information, contact : Engineering & Design – ed@atnetindia.net