User's Manual
Page 10
Storage of settings
The DNS 2’s current settings are stored every time the buttons and screens go
dim, which happens a few seconds after the user stops adjusting the controls.
These settings are recalled when the DNS2 is turned on.
Power On/Off
Switch the DNS 2 on and off using the power button. Units from serial number
DNS-2-11017 onward power up automatically when external power is rst applied.
If a problem occurs, you can switch the unit off by pressing the power on/off button
for ve seconds or more to perform a ‘hard’ power off.
Summary of operation
LEARN
When LEARN is on, the DNS 2
continually identies the power
and spectral distribution of
the noise present. This is the
normal mode of operation.
When LEARN is off, the noise
identication is frozen at the
last determined values.
Bias
Adjusts the amount of noise
detected by LEARN. You can
bias the detection upward
(more noise detected)
or downward (less noise
detected).
Attenuation
Determines how much noise will be removed from the signal.
Summary
LEARN and Bias determine what is detected as noise.
Attenuation determines how much of the detected noise is suppressed.