User`s manual

110
Figure 4-64: Noise Reducer Control Window
Description of controls/indicators is as follows:
Master Attenuation Used to specify the amount of noise reduction that the spectral subtraction
Control: attempts to apply to the input signal. Adjustment range is 0 (no attenuation) to
100% (maximal attenuation) in 1% increments.
Noise Smoothing Used to activate or deactivate a special feature that minimizes the amount of
Button: audible artifacts that occur when aggressive settings are used for the Master
Attenuation Control. Feature is either on (LED illuminated GREEN) or off
(LED not illuminated).
Output Gain: Allows user to apply between 0 and 30dB of
makeup gain to the processed output signal to maximize the signal level prior
to final equalization, AGC, and listening/recording. The associated Output
bargraph shows the actual output signal level after the gain has been applied.
Clear Button: Used to clear the spectral subtraction solution currently in memory and restart
the algorithm from scratch.
Filter Active Button: Used to switch the filter in and out of the process without affecting the
operation of the other filters. Button LED is illuminated RED when the filter is
in the process, and is not illuminated (GRAY) when the filter is out of the
process.
Note: The Filter Active button is equivalent to, and linked with, the Active
button in the associated Filter block on the Master Control Panel.
OK Button: Use either this button or the “X” button at the upper right corner of the
window to exit the dialog and return to the Master Control panel.