1026 Software and Programming Getting Started - Ivie

1026 Manual
Ivie Technologies, Inc. __________________________________________________________
The “Input Trim” Pop-up Control Window
Figure 20
The proper setting of the signal level coming into a 1026 and signal level exiting the unit is crucial to the
performance of the unit. As with all DSP based products, the 1026 is far less forgiving of being driven
into clipping than an analog product would be. The level meter on the left shows the analog signal level
coming from the mixer section of the 1026. For the best performance, this level should be as close to 0
dBu as possible. To accomplish this, the individual input signal levels may be increased or decreased
before arriving at the DSP section of the 1026. The input level in Figure 20 above, is at about -6, which
is still not bad. Once set to as close to 0 dBu as possible, the input level will need to be trimmed for optimum
processing by the DSP. The Trim slider adjusts level prior to the 1026’s A/D converter.
The level control slider between the two meters is used to trim the input. The meter on the right shows
the trimmed signal arriving at the A/D converter in dB full scale (dBFS). Best performance occurs when
this level is about -18dB to -12dB (as the example in Figure 20 above shows). This provides good headroom
before the meter on the right will top out at 0dB. When the dBFS level exceeds 0dB, audible distortion
may occur. It is very important not to overdrive the inputs.
The output levels can be trimmed in a like manner. Placing the cursor on the section in an output
labeled “Level” and double clicking will cause a pop-up window labeled “Output Trim.” The output
may be trimmed in the same manner as discussed previously for an input. Again, an output level of
about -18dB full scale will provide optimum performance. Clipping an output will cause the same
unhappy results as clipping an input. Once levels have been properly set, the rest of the signal processing
modules of the 1026 can be properly set. The first signal processing module in the input path that can be
adjusted is the parametric equalizer module. Final output level adjustments should be made after PEQ
adjustments are completed.
The PEQ Modules
The color identifies the Mix Bus
Trim Control Selected:
Yellow = Mix Bus “A.”
Green = Mix Bus “B.”
The PEQ (Parametric Equalizer) Modules on the input and outputs provide tremendous flexibility in
creating broad and narrow-band shaping and filtering. Each PEQ Module provides a user-selected num-
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