Noise
level/
Micro–
phone
A quiet
room (40
dBsplA)
A regular
room (45
dBsplA)
A noisy
room (50
dBsplA)
1
approx.
3 m
(approx.
9.8 ft)
approx.
2.2 m
(approx.
7.2 ft)
approx.
1.2 m
(approx.
3.9 ft)
2
approx.
2.8 m
(approx.
9.2 ft)
approx.
1.5 m
(approx.
4.9 ft)
approx.
1 m
(approx.
3.3 ft)
3
approx.
2.3 m
(approx.
7.5 ft)
approx.
1.3 m
(approx.
4.3 ft)
—
4
approx.
2 m
(approx.
6.5 ft)
approx.
1.1 m
(approx.
3.6 ft)
—
Layout examples (a regular room)
(the gray circle indicates the microphone’s range):
Display
Microphone
4 m
(13.1 ft)
4 m
(13.1 ft)
Microphone
Display
4 m
(13.1 ft)
Microphone
Microphone
Microphone
Microphone
4 m
(13.1 ft)
4 m
(13.1 ft)
4 m
(13.1 ft)
Display
Microphone
Microphone
Microphone
Microphone
4 m
(13.1 ft)
4 m
(13.1 ft)
4 m
(13.1 ft)
4 m
(13.1 ft)
Display
26
Operating Manual
Document Version 2012-03
Preparation
