Monitoring Audio
Checking Audio Level and Phase
Level meters are vertical bar graphs on which the height of the bar indicates the amplitude of the audio program in the
corresponding input channel. You can change the input and turn on and off the Phase display from the Audio pop-up
menu. Other meter characteristics such as ballistics, scale units, and program and test levels are con
fi
gured through the
Con
fi
guration menu.
Your instrument can display phase of one input pair as a Lissajous pattern, and display correlation of all pairs.
To Check Level
1.
Open the audio display and select an
input. (See page 45.)
2.
Check the level meter bars for current
audio levels, which are displayed
according to the selected meter ballistics.
Each bar displays three colors:
Green – Indicates audio levels below
the test level
Yellow – Indicates audio levels
between the test and peak program
level
Red – Indicates audio levels above
the peak program level
To Check Phase
1.
Open the audio display. (See page 45.)
Use the Arrow keys and
SEL
button to
make selections in the steps that follow.
2.
Select
Aux Display
and then select
Phase Display
to turn it on.
3.
Select the
Phase Style
. Choose
either a
Lissajous Soundstage
or
X-Y
orientation for the Lissajous signal.
4.
Select the phase pair that has to be
displayed from the
Phase/Headphone
Pair
.
5.
Set the
Audio Input
to match the signal
that you are checking.
46
WFM4000 and WFM5000 Waveform Monitors User Manual
