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Indicator
Echo Canceller
Level
Sound Quality Remarks
OFFOFF
Green
Yellow
Red
– No Echo Canceller processing
LOW High When the effect of echo is small, this position is selected.
MID
HIGH
Normal
Low When the effect of echo is large, this position is selected. This
setting is default. (*1)
● Setup operation for Echo Canceller (Echo Canceller Effect Level Control)
The effect of Echo Canceller (the amount of echo erase) is set up.
● Setup operation for DNR Level (Digital Noise Reduction Effect Level Control)
The effect of DNR (Digital Noise Reduction) (the amount of noise reduction) is set up.
*1: If the contents of conversation are difficult to get, set up the echo canceller level to MID.
Indicator
Noise Reduction
Level
Sound Quality Remarks
OFFOFF
Green
Yellow
Red
– No DNR processing
LOW High For relativity quiet environment.
MID
HIGH
Normal
Low
For a general environment. This setting is default.
This feature is useful under very noisy environment.
In this setting, one may feel that the sound of conversation is
unnatural.