Owner's manual
IC Live Users Manual - Models ICL-R & IC215S-R
17
Computer Controlled Operation (continued)
DSP Control
The Control properties window includes controls for an 8-band Parametric EQ complete with High and Low pass band shelving lters, plus
controls for a compressor, signal delay and several other user congurable DSP functions.
Opening the Control window allows you to tell at a glance what EQ, if any, has been installed into the array’s DSP and change it if needed.
Remember, the presets installed at the factory include only beam steering information. They do not include EQ, delay or compression.
The lter controls are underneath the frequency chart. To activate a lter, click the button above its white data elds; then either type in
your values or use the up-down arrows or scroll with your mouse to adjust the parameters. At the far left is a high pass lter; its low pass
counterpart is at the far right. These lters have three controls: Cutoff Frequency, Type (Bessel, Butterworth, etc.), and Slope. The pair of
lters to the inside are shelving lters, with controls for corner frequency and boost/cut.
The center section gives you control of 8 fully parametric lters, with controls for center frequency, boost/cut and bandwidth in octaves.
When you activate a lter, its button turns green and it appears on the graph – each lter appears in a different color. A solid white line
shows the overall EQ curve. The Bypass All button at the bottom of this section lets you compare ltered and unltered signals quickly.
All lter parameters can be controlled with the scroll wheel on your mouse. Click inside the control eld and scroll to set: Gain,
Bandwidth, Frequency, etc.
Below the EQ section in the light grey area, you’ll nd controls for the Compressor on the left. The controls – Threshold, Ratio, Attack Time,
Release Time and Soft Knee – are similar to the EQ controls. You can type in values, use the Up/Down buttons, or scroll with your mouse
to nd the values you want. Under Signal you will nd buttons that set the compressor’s trigger point Above, At or Below the Knee.
When the compressor is operating, the Bypass button is red and the Gain Reduction meter on the right side of this section lights up. To
turn the compressor off or to compare the uncompressed output to the compressed output, click the Bypass button. To the right of the com-
pression Reduction Meter is the Make-Up Gain control. This control can be used to restore RMS levels of the compressed signal to those
expected of the signal pre-compression. It has a range of 0 to +12 dB.
The arrays input module’s DSP has 340 milliseconds of signal delay available, if you are using the 48 kHz sample rate; 170 milliseconds if
you are using 96 kHz. Use either the up-down arrows or the slider control to adjust the delay time.