18
ENGLISH
To add a second filter (i.e. PEQ): enable the filter 2, select the PEQ filter type, its gain and
central frequency, then set its Q factor.
INV. PHASE
If selected (red light), the VSA speaker phase is inverted.
Finally, click either
STORE
(send and store) or
SEND
all EQ settings (without storing) to
the VSA speaker.
GAIN
Gain setting (dB) of all the audio range (0 = flat).
DELAY
Delay line setting.
If the sound system is made of two or more speaker lines, it is advisable to delay the sound
from the second line onwards (setting a delay time directly proportional to the distance
from the first speaker line), in order to reduce the perception of echo (due to the different
reception times of sounds coming from speakers that are distant one another), give a
correct sense of depth to listeners and improve the speech intelligibility.
You can set the distance in meters (graphically or analytically) or the time in milliseconds
(by entering the numeric value only).
e
XaMPle
(
see
the
figUre
):
-
t
he
b
sPeaker
is
15
Metres
far
froM
the
a
sPeaker
(
first
line
)
and
needs
to
be
delayed
by
setting
the
delay
ParaMeter
to
15 m
.
-
t
he
C
sPeaker
is
30
Metres
far
froM
the
a
sPeaker
(
first
line
)
and
needs
to
be
delayed
by
setting
the
delay
ParaMeter
to
30 m
.
