Parametric Equalizer
The Parametric Equalizer is a variable equalizer allowing you to individually adjust the Gain, Bandwidth and center Frequency of up to 32 frequency bands. You can also Bypass individual bands. Master controls, affecting all bands, include Bypass, Invert, Mute and Gain. Additionally, you can change any or all of the bands to either a high or low-shelf equalizer, allowing you to vary the gain of all frequencies, as a group, above or below a selected frequency. At the selected Frequency, the gain changes approximately +3dB or -3dB depending on wether the shelf is adding or reducing gain.
Inputs and Outputs
Note: The number of signal pins is variable and set in the component's Type Property.
Input Pins
Channels
Audio signal pins are represented by a (
) circle, and traditional wiring is represented by a thin black line. You can use Signal Names on audio signal pins.
By default, the Parametric Equalizer component is set to a Mono channel, which provides one input and one output. Additionally, you can set the Properties to allow for Stereo, which gives you two inputs and outputs; or you can choose Multi-Channel, which will allow you to choose between 2 and 256 inputs and outputs.
Output Pins
Channels
Audio signal pins are represented by a () circle, and traditional wiring is represented by a thin black line. You can use Signal Names on audio signal pins.
By default, the Parametric Equalizer component is set to a Mono channel, which provides one input and one output. Additionally, you can set the Properties to allow for Stereo, which gives you two inputs and outputs; or you can choose Multi-Channel, which will allow you to choose between 2 and 256 inputs and outputs.
Schematic Example
In this example, we have all of our audio channels routed through a series of Equalizers and Filters before being delivered to our Amplifiers. The Parametric Equalizer is where most of the equalization takes place.
Properties
Parametric Equalizer Properties
Band Count
Sets the number of bands available in the Equalizer, from 1 to 32.
Bandwidth or Q-Factor
Select whether to display Bandwidth, Q-Factor, or both controls in the control panel.
High Precision
Select Yes to expand the frequency display precision to show tenths of Hz below 1 kHz and whole Hz above 1 kHz. The default is No.
Channels
Type
Sets the type of Channel available for Inputs and Outputs.
Count
Only appears when choosing Multi-Channel as the Type. Sets the number of Channels for Multi-channel. You can choose between 2 and 256.
Response Panel
Enabled
Enables or disables the graphical Response graph.
Size
Sets the size of the graphical Response graph.
Graphic Properties
Label
Use the Label property to change the name of the component in the schematic. The Label property defaults to the component name. To learn more about renaming schematic elements, see Organizing Your Design.
Position
The coordinates reference a specific place in the schematic - for example,"100,100" (horizontal, vertical). 0,0 is the upper left corner of the schematic.
Fill
Sets the fill color of the component in the schematic.
Script Access Properties
Code Name
Displays the currently assign name for control access. You can use the auto-assigned name or customize it. Q-SYS will automatically check all Code Names in the design to ensure name is unique.
Script Access
Defines whether the component will be accessible by script and/or externally, or not at all. Choices include All, External, None (default), and Script.
- None (default) - Not accessible by any script, plugin, or by Q-SYS Remote Control Protocol (QRC).
- Script - Can be accessed by scripts, such as Text Controller, Block Controllers, and plugins only.
- External - Can only be accessed by 3rd party controls systems using component commands from the Q-SYS Remote Control Protocol (QRC).
- All - No restrictions, can be accessed by 3rd party control systems via Q-SYS Remote Control Protocol (QRC), or script objects or plugin objects.
Tip: Use Script Programmer Mode to quickly view the Script Access setting directly on the component in the design schematic without the need to disconnect from the Q-SYS Core processor.
Controls
General
Response Panel
The Response panel provides vertical and horizontal cross-hairs with a dynamic frequency and level read-out. Place the mouse courser over the graph to activate the cross-hairs. When the Phase control is activated, the horizontal cross-hair line to the left of center represents the normal curve, the right side represents the phase curve. The readout is only for the normal curve.
All (Bands)
A toggle button that activates a graphical display all bands of the equalizer. When the button is not enabled, the Response Panel displays a composite of all the bands. The composite cannot be turned off.
Phase
Turns the Phase curve display on and off.
Master
Bypass
Bypasses the equalizer.
Invert
Inverts the output signal of the equalizer.
Mute
Mutes the output of the equalizer.
Gain (dB)
Sets the overall gain of the equalizer.
Band
Bypass
Bypasses an individual frequency band.
Gain (dB)
Controls the gain for an individual frequency band.
Bandwidth (Octave)
If enabled in Properties, sets the bandwidth of an individual band of the equalizer, from .010 octaves to
Q-Factor
If enabled in Properties, sets the Q-factor of an individual band of the equalizer. This is not active when either Low-shelf or High-shelf Type is selected. Adjusting Q-Factor generally adjusts Bandwidth in an inverse manner.
Frequency (Hz)
Sets the center Frequency of an individual band.
Type
Selects the type of equalizer for that band.
Control Pins
|
Pin Name |
Value |
String |
Position |
Pins Available |
|---|---|---|---|---|
|
(band) Bandwidth |
.010 to 1.00 |
.010 to 1.00 |
0.000 to 1.00 |
Input / Output |
|
(band) Bypass |
0 1 |
active bypass |
0 1 |
Input / Output |
|
(band) Equalizer Type |
1 2 3 |
Parametric Low-shelf High-shelf |
0 0.5 1.00 |
Input / Output |
|
(band) Frequency |
10 to 20000 |
10 Hz to 20 kHz |
0.000 to 1.00 |
|
|
(band) Gain |
-18 to 18 |
-18 dB to 18 dB |
0.000 to 1.00 |
Input / Output |
|
Master Bypass |
0 1 |
active bypass |
0 1 |
Input / Output |
|
Master Gain |
-20 to 20 |
-20 dB to 20 dB |
0.000 to 1.00 |
Input / Output |
|
Master Invert |
0 1 |
normal invert |
0 1 |
Input / Output |
|
Master Mute |
0 1 |
unmute mute |
0 1 |
Input / Output |
