TANDBERG TC2.1 User Manual download pdf (Page 53)

D14324.04—DECEMBER 2009

Proﬁle series with Codec C60

Administrator Guide

Contents Introduction Getting started About the menus The settings menu Settings Library Cameras Appendices Contact us

General room guidelines

The physical conditions

When building a video meeting room, or using an existing room for

video meetings there are a few guidelines to consider.

Lighting

• The illumination should be distributed evenly in the room to obtain

low contrast

• The ideal light intensity is a little higher than in an ordinary meeting

room. Typically, the luminous intensity should be 800–1400Lux,

measured at the table with an incident light meter

Seating area and table

• The seating area and table should be non-shiny and non-patterned

• The seating area should allow all participants to see the monitor

Walls

• The color of the wall should be in good contrast to skin tonality.

Light blue is a complementary color to skin tonality, it gives a good

contrast and is commonly used

• Acoustically reﬂective surfaces (such as glass or concrete) should

be covered with curtains or sound treatment

Audio

• The Noise Floor (the sum of all the noise sources) should be less

than max 35dBA

• The reverberation time should be 0,3 to 0,5 seconds

Ventilation

• When having a TANDBERG Proﬁle system installed the

requirements for ventilation is higher than in an ordinary meeting

room. See the Technical speciﬁcations section in the Appendices

to ﬁnd the output values for your TANDBERG Proﬁle.

• Keep in mind the Noise Floor (see Audio)

• Velocity creates noise, therefore keep velocity of air low

The room equipment

When placing and using the room equipment there are a few

recommendations and guidelines to consider.

The microphone

• The microphones should be evenly distributed on the table. Avoid

positions where they can be hidden behind obstacles like laptop,

projector or other equipment placed on the table

• Do not place a microphone close to noisy equipment like computer

and projector fans, power outlets or similar arrangements on the

table. The microphone will pick up noise from these arrangements

quite strongly.

The camera

• The camera should be able to “see” all participants in the room.

Use the pan, tilt and zoom features to adjust the picture

The PC

• PC’s placed on the table should not cover the microphones as this

will reduce the audio quality at the far end

Position of the system

• Position the video system in such a way that all participants

attending the meeting are visible to the far end

• If appropriate, the far end should be able to see people entering or

leaving the room

The document camera

• The document camera should be close to the chair person or a

designated controller of the document camera for ease of use

Make sure this person is visible on screen while carry out the task

Other peripherals

• Arrange all the peripherals so that the chair person can reach each

of them to point, change the display, DVD, and still be fully visible

on screen while carry out the task

Environmental considerations

This section explains how to carry out basic adjustments and simple

tests to ensure that you send and receive the best possible image and

audio quality when using your system.

Iris control and lighting

By default the system camera will use an automatic iris to compensate

for changes in lighting. In addition to this feature, you may further

assist the system to maintain the best possible image quality by

paying special attention to environmental lighting and background

colors as described below.

Remember the system will send live images of both yourself and your

immediate surroundings.

• Avoid direct sunlight on the subject matter i.e. yourself, the

background or onto the camera lens as this will create harsh

contrasts

• Avoid placing the seatings in front of a window with natural

daylight, as this will make the faces of people very dark

• If light levels are too low you may need to consider using artiﬁcial

lighting. As described above, direct illumination of the subject

matter and camera lens should be avoided

• When using artiﬁcial lighting, daylight type lamps will produce the

most effective results. Avoid colored lighting

• Indirect light from shaded sources or reﬂected light from pale walls

often produces excellent results

• Avoid harsh side lighting or strong light from above. Strong sunlight

from a window or skylight may put part or all of the subject matter

in shadow or cause silhouetting

Loudspeaker volume

The audio system will use the Digital Natural Audio Module (DNAM)

which is integrated in the system. The volume of the audio is controlled

by the Volume key on the remote control.

Contents

Introduction

Getting started

About the menus

The Settings menu

The Settings library

Cameras

Appendices

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TANDBERG TC2.1 User Manual Page 53

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