7
INTR
ODUCTION
The PJP-EC200 is a high-performance echo canceller box that enables smooth simultaneous talk during a
videoconference or a webconference.
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Echo canceller
Echo is a phenomenon that occurs when microphones pick up the audio reproduced from the speakers. The echo
canceller of this unit eliminates echo elements from sounds picked up by the microphones to enable smooth simultaneous
talk.
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Feedback suppressor
The feedback suppressor detects generation of acoustic feedback which occurs when a sound loop exists between speaker
output and microphone input and applies the notch filter to minimize the acoustic feedback.
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Auto analyzer
The auto analyzer optimizes this unit's audio settings to minimize the generation of echoes and acoustic feedback by
automatically analyzing the characteristics of a microphone and speakers connected to this unit and the acoustic
characteristics of your conference environment.
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Noise reduction
The noise reduction automatically detects ambient noises (generated by a fan or an air conditioner) and removes the
noises from sounds picked up by the microphones. By combining with the echo canceller, it effectively eliminates
unwanted noises from the pickup sounds and delivers clear sounds to the other end. The noise reduction of this unit also
works on the sounds from the other end.
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Auto gain controller
If you are using a boundary microphone, the volume level of sounds picked up by the microphone varies depending on
the distance between the talker and microphone. The auto gain controller automatically adjusts the pickup gain to
optimize the volume level of pickup sounds and minimize the volume differences caused by the distance to a talker.
About the Product
Enhanced basic functions
CONFERENCE OUT L
Echo c
a
nceller x 2
Feedb
a
ck
su
ppre
ss
or x 2
CONFERENCE OUT R
CONFERENCE IN L
CONFERENCE IN R
LINE OUT L
LINE OUT R
MIC LINE INPUT IN1
MIC LINE INPUT IN2
Mixer
Mixer