The
DSP7000
Family Operating Manual
Page 28
The DSP7000 Family Operating Manual
Manual Release 1.1
2000 Eventide Inc.
to go from full “deflection” to zero measuring an impulse. The parameter
peak hold
determines how long
the meters hold their highest reading.
The top-most LED on each meter indicates that the signal is clipping. The LED below the top-most one
indicates that the signal is just below clipping (-0.06dB). Each LED below the second falls off at -3dB per
decrement, with the exception of the bottom one, which lights if the signal is above -40dB.
You can use the Level Meters to verify that your internal gain structure is in good shape. You generally want
to keep levels near, but not touching, the red clip LED. To achieve this, it’s always better to boost or cut an
output
. Only if a signal level cannot be optimized by an output boost/cut should you resort to altering an
input level!
Controlling the Level of the Analog and Digital Inputs
Signals come into the DSP7000 from the outside world via the analog and digital inputs. Adjust the
boost/cut of each of these inputs on the
inputs
menu page in the
LEVELS
area. Such boost/cuts will often
be made in “gangs,” however, you can boost/cut any of the inputs independently of the others by pressing
the
DOWN CURSOR
key. Notice that the analog input has two parameters for gain adjustment: one
before
the
analog to digital converter (ADC) and one
after
the
ADC. Use the
gaintrim
parameter to get a good
analog level into the ADC, and use the
analog
parameter to adjust the loudness of the analog signal
relative to the digital signal (assuming that you’re using
both the analog and digital inputs).
To monitor the input levels, go to the
meter
menu page
in the
LEVELS
area. Change
Source
to either
analog
in
or
digital in
depending on which you want to
monitor.
Again, the analog levels shown on the Level Meters are
after
the
gaintrim
found on the
inputs
menu page.
This means that it is possible to
overdrive
an input to the DSP7000,
decrease that overdriven level with the
inputs
/
gaintrim
parameter, and
show no clipping
on the Level Meters! To avoid such
a situation, it is advisable to boost/cut the signals coming into the
DSP7000 at their source. Doing so also results in a better gain structure! The moral ? Use the
gaintrim
parameter on the
inputs
page only as a last resort.
→
Note: All of the parameters discussed in this section can be “remote controlled” via MIDI or the foot pedal jacks. To learn how,
read:
•
Setting Up the External Controllers
on page 36.
•
External Modulation and Trigger Menu Pages
on page 39.
•
Remote Controlling Parameters
on page 50.
