54
click the
Push EQ/Dyn settings to
button. A file find dialog box opens so a
saved EQ Config file can be selected to apply to that channel.
Note:
The EQ and Dynamics settings assigned to faders 1 and 2
from the factory are saved in the EQ file: WNIP_mic.dmx_eq.
Figure 4-9 Saving & Recalling EQ Configuration Files
EQ & Dynamics Screens
When any of the EQ controls are active, the next to last EQ & Dynamics
channel display (channel 7 or 15) has an audio frequency graph (Figure 4-
10, left and middle illustrations) which shows the current settings of the
various EQ controls. The EQ graphic shows frequency response from 20 Hz
(left side) to 20 kHz (right side). The center of the display is roughly 600
Hz since it uses a logarithmic scale. The middle horizontal line represents 0
dB of gain and each white horizontal line above or below it represents
about 5 dB of level.
Even though the EQ & Dynamics settings are made on a channel-basis,
rather than applied to a particular source, because these settings are
saved as part of the four console
Events
(along with the channel sources
and other channel and monitor settings), with careful planning one can
apply different EQ & Dynamics, Mode, and Panning to specific audio
sources by using Events.
Note:
Taking an Event overrides whatever EQ & Dynamics
settings
—
and mode and pan settings are currently assigned on
each channel.
Figure 4-10 EQ Out, EQ In, and Dynamics Graphic Screens
The four parametric EQ controls are color-coded. The filter controls and
graphic settings for the HPF and Low EQ settings are in red; the Low-Mid
EQ is orange; the High-Mid EQ is green; and the LPF and High EQ settings
are blue.
When the EQ is not active (all are set Out) lines are shown across the
display, as shown in the left screen in Figure 4-10. When the EQ is active
(set In) then the audio pass band is represented in gray, as shown in the
middle screen in Figure 4-10.
When the Compression or Expansion control screens are active the
Dynamics display is shown (right screen in Figure 4-10). It
’
s a very
different type of display since it graphically shows the ratio between the
incoming audio and the dynamically processed output audio. When
Dynamics is set Out the response line is gray. When Dynamics is set In the
line is orange. The top half of the display reflects the Compressor
’s
settings while the bottom half reflects the Expander
’s
settings.
High Pass & Low Pass Filters
The High Pass Filter (HPF) and Low Pass Filter (LPF) can be used
independently on any channel (each can be set In or Out) to narrow the
audio frequency range of that channe
l’s audio
to less than 20 Hz
–
20 kHz.
The frequency pass band is shown graphically as the controls are
adjusted: a red line represents the HPF or low frequency cutoff while a
blue line represents the LPF or high frequency cutoff.
Figure 4-11 High and Low Pass Filter Screens
Adjusting the channel encoder on the channel with the HPF display
(Figure 4-11) adjusts the frequency where the lower sounds begin to be
rolled off or attenuated. The control range is 16 Hz to 500 Hz. Audio below
the selected frequency gets rolled off at 24 dB per octave. Audio above the
selected frequency is not affected. The HPF is commonly used to remove
low frequency rumble and sounds emitted by air conditioners, AC line