Setting The Differential Pressure Control; 1.Global Settings; 1.1. Input Gain; 1.2. Polarity - powersoft IpalMod User Manual

Setting the Differential Pressure Control

By clicking on the name of an amplifier module in the
amp list, you enter the settings interface of that module. All
settings are accessible on the top section of the window;
the bottom section shows meters and status leds.
FIGURE 22: Power Control Manager: module settings.

15 : 1.Global settings

Global settings affect the behavior of the system re-
gardless of the operating mode (Virtual Speaker model /
Pressure Model).

15 : 1.1. Input Gain

Set the maximum volume of the input
signal. The attenuator knob on the inter-
face board modifies the signal volume in
series with the internal settings.
f The number just below the label f
"Input gain" shows the sum Int + Ext
in decibels.
f Ext shows the attenuation (negative f
dBs) achieved by means of the at-
tenuation knob.
f Int allows to define the internal signal f
volume in dB.

15 : 1.2. Polarity

The input signal can be phase reversed
by clicking on the polarity boxes.

15 : 1.3. Delay

The input signal can be delayed by user
definable amounts via the delay process-
ing block. Parameters can be accessed
and set from the main window.
16 | IpalMod | User guide
Delay values can be entered in the time domain (us) or as
physical linear distances (in mm or in inches).
FIGURE 23: Parametric equalizer.

15 : 1.4. Parametric equalizer

A fully parametric equalizer processing
block is available to fine tune the system's
sound. By double clicking on the equalizer
processing block, a new window opens
(ref. FIGURE 23).
A list of parameter presets of commonly used equaliza-
tion schemes is available on the left hand menu. Double
clicking on the filter name selects it and adds it to the pro-
cessing chain. Each individual selected filter can however
be turned on or off by clicking on the "on/off " green LED
button at the bottom of the filter list.
The slider controls beneath the preset filters list allow
real time variations of filter parameters such as the filter's
central frequency, gain, Q and type. A log scale diagram of
each filter's effect is presented on the right hand side of the
eq window.
The red line represents the selected filter frequency
shaping.
The yellow line represents the cumulative effect of all the
filters on the entire input signal.
15 : 1.4.1. Safe Mode and Mute
Some settings may brings to system
instability and critical operating condi-
tion. The Safe Mode button provides a
protection against critical settings: when
activated, this function will not allow the
output power to exceed a set limit.
The Mute button is provided as well to
mute audio playback.
15