User`s manual

simultaneously with as many as nine stages of digital signal

processing; each stage is identical for both the Left and Right

channels. Stereo, Independent is the same as Stereo, Linked,

except that the processing stages may be setup and controlled

independently for the Left and Right channels.

General Filter

Stages Box

Selects the number of General Filter Stages that are to be used.

Between 1 and 6 of these stages are available, depending upon the

specified System Bandwidth and Input Mode. For each General

Filter Stage, any of 17 different types of filters can be selected

using the drop-down menu; also, dedicated Master Control

buttons for each stage allow the user to toggle the Active status

(filter is active when the LED illuminated RED, inactive when not

illuminated) and open special dialogs that Configure the detailed

filtering parameters. For adaptive filter selections (1-Channel

Adaptive and Ref Canceller), additional buttons allow the user to

toggle the Adapt status (adaptation is enabled when the LED

illuminated GREEN, inactive when not illuminated) and Clear the

adaptive filter solution from memory. See Section 4.4: for detailed

descriptions of the individual filter controls.

Output Levels Box

Used to view output signal levels via bargraph displays, Configure

the Output HPF stage and toggle its Active status, and Configure

the AGC stage and toggle its Active status. See Section 4.2.1:

for further details on the Output HPF and AGC stages.

Minimize Button Standard Windows control, allows the Master Control screen to

be hidden while still running. To make the screen viewable again,

simply click the PCAP II Plus icon on the Windows Task Bar,

which is normally at the bottom of the Windows desktop.

Exit Button Standard Windows control, allows the Master Control program to

be terminated; alternatively, the user can utilize the Menu Bar and

click on File, then Exit, or type <Alt-F4> using the keyboard.

After termination, the PCAP II Plus External Processor will

automatically switch back to STAND ALONE operation after 10

seconds.

Visualization Box Allows user to activate either the built-in Coefficient Display (see

Section 4.9: for more details) or the built-in Spectrum Analyzer

(see Section 4.8.2: for more details).

Processor Enabled

Button

Toggle control used to specify whether the original input signals

(LED not illuminated) or the processed signals (LED illuminated

RED) are routed to the ANALOG and DIGITAL outputs.