User manual

AMP-S8 Series+ User Manual P/N 821640 Rev-B

SDI GROUP Selection: GROUP Button

When either of the the SDI inputs are selected for monitoring, the

GROUP Button allows the user to select which two 4-channel

SDI audio groups are presented to the left and right banks of

four Level Meter Bargraphs.

When the buttons are pressed relatively rapidly, the order of

selections follows that shown in the table (right). But after a

selection is chosen and left until the display flashes once, slower

button presses will toggle between the Group 1/2 and Group

3/4 selections. After this, rapid presses will again initiate the cycling

as shown in the table. Since the first two selections are more

common choices, this features allows easy toggling between them.

Section 2: Operation

User Interface Function Guide

Selection Modes (Cont.)

Display Modes

Displaying Phase/Correlation Indication:

ΦΦ

Button

Pressed by itself, the

ΦΦ

Button enables the Phase/Correlation Indicator in the LCD Display. The average

correlation (phase) for the selected channel pair is indicated by a stationary block appearing within three positions on the

second line of the display. A moving block may also be present in these positions to indicate the instantaneous (short time

sample) phase correlation. The three positions are as follows:

Center: Only one channel active or zero correlation between the two channels

Left (-): Selected channels are out-of-phase (-1 correlation maximum)

Right (+): Selected channels are in-phase (+1 correlation maximum)

Note: With typical stereo program material, the moving block display is normal. With a single signal, or two completely

un-related signals selected for the speaker(s), no correlation information is available, so the phase indicator block

will be at rest in the center of the LCD. A mono in-phase signal fed to both right and left channels would result in the

block being in the right-most position indicating complete correlation of the two signals.