TANDBERG TC3.0 Microphone reinforcement, Using microphone reinforcement in a large room, Zone

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Microphone reinforcement	Using microphone reinforcement in a large room
To improve speech intelligibility in a large room, the local
microphones are played out on speakers locally as well as being
sent to far end.
• The room can be viewed as being divided in two zones. It
is assumed that there is a low acoustic coupling between	Loudspeaker	Loudspeaker
microphones in zone 1 and speakers in zone 2 and vice versa.
• Microphones in zone 1 will be played out on all loudspeakers	(far end)	(far end)
in zone 2.
• Microphones in both zones will be transmitted to far end.	Microphone 1	Microphone 2
• The input signal from far end will be played out on
loudspeakers in both zones.
	Zone 1
	Loudspeaker	Loudspeaker
	(far end + Mic 1 + Mic 2)	(far end + Mic 1 + Mic 2)
	Microphone 3	Microphone 4
	Zone 2
D14635.02—MARCH 2010	44	www.tandberg.com