Gated Ambient Compensator Component

Properties

Gated Ambient Compensator Properties

Microphone Filter

Determines if the Mic Filter is active and available in the Control Panel.

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

In Gain (dB)

Adjusts the microphone input level.

Detector (dB)

Displays the ambient level, including any program material present.

Response Panel

Graphically displays the operation of the Continuous Ambient Compensator.

The X axis represents the recovered ambient signal RMS level.

The Y axis represents the dB gain that is applied to the program material.

Bypass

When engaged, the Continuous Ambient Compensator is bypassed.

Gain (dB)

Displays the gain applied to the program material.

Out Gain (dB)

Adjusts the Program output level.

Mic Filter

Note: Depending on the Type of filter you select, some of the controls listed below may not be available.

Bypass

When engaged, the Mic Filter is bypassed, the ambient noise is not filtered except by the Audio Bandwidth setting in the Properties.

Type

Selects the type of filter to use. You can select one of the following:

Low-Pass
High-Pass
Band-Pass
Band-Stop
Parametric
Low-Shelf
High-Shelf

Bandwidth (Octave)

Sets the width of the frequency band to be filtered. Available only with the Band-Pass, Band-Stop, and Parametric filters.

Frequency (Hz)

Sets the frequency of the filter. For filters that have a bandwidth setting, this is the center frequency of the bandwidth.

The upper limit for this control is either 1.25 kHz, 2.5 kHz, or 5.0 kHz depending on the Audio Bandwidth Property.

Gain (dB)

Sets the gain for the Parametric, High-Shelf, and Low-Shelf filters.

Detector

Program Threshold (dB)

Sets the threshold, of the Program input, above which the Ambient Detector is not active. When the program level falls below this setting, the Ambient Detector becomes active

Sense Delay (seconds or milliseconds)

Sets a delay in the time it takes the Ambient Detector to go from inactive to Active. This is to compensate for momentary pauses in the Program input.

Sensing

LED indicating if the Ambient Detector is active or not.

Gain Calculation

Ambient Threshold (dB)

The crossing point of the ambient level and the Minimum Gain. At this point, as the ambient level rises, the gain applied to the Program moves from the Minimum Gain towards the Maximum Gain. The point at which the ambient level is high enough to have an impact on the Program gain.

Ratio ( n:1)

The ratio between the Minimum Gain and the Maximum Gain as measured from the Ambient Threshold Level. The closer the Ratio is to 2, the lower the ambient level needs to be for the Maximum Gain to be used when the Program input passes the Program Threshold.

For example: If the Ambient Threshold is -30 dB, Minimum Gain is -10 dB, Maximum Gain is 10 dB, and the Ratio is 2.0, when the ambient level reaches -20 dB, Maximum Gain is applied when the Program Threshold is reached.

Same example except the Ratio is 0.5. When the ambient level reaches 10 dB the Maximum Gain is applied when the Program Threshold is reached.

Minimum Gain (dB)

The minimum amount of gain you want to apply to the Program output when the ambient noise is at it's lowest point. Usually a negative amount, or attenuation - shown in red on the Gain meter. Gain is added to the Program input level up to this setting. If the Minimum Gain is -15 dB, and the Program input level is 5 dB, the Program Output is -10 dB

5 + (-15) = -10

Maximum Gain (dB)

The maximum amount of gain you want to apply to the Program output when the ambient noise is at it's highest point. Gain is added to the Program input level up to this setting. If the Maximum Gain is set to 10 dB, and the Program input level is 5 dB, the Program Output is 15 dB.

Time Constants

Attack Time (seconds)

Sets the time it takes for the output amplitude to rise to 63% of the specified Ratio of the input amplitude once the Ambient Threshold Level is exceeded.

Release Time (seconds)

Sets the time it takes for the output to fall to 63% of the level set by the Minimum Gain control after the Ambient Detector level drops below the Ambient Threshold Level.

Control Pins

The available Control Pins depend on settings in Properties.

Pin Name	Value	String	Position	Pins Available
Ambient Detector Level	-100 to 20	-100 dB to 20 dB	0.000 to 1.00	Output
Ambient Sense Delay Time	0.00 to 10	0 ms to 10 s	0.000 to 1.00	Input / Output
Ambient Threshold Level	-60 to 20	-60 dB to 20 dB	0.000 to 1.00	Input / Output
Applied Gain	0 to 20	0 dB to 20 dB	0.000 to 1.00	Output
Attack Time	1 to 10	1 s to 10 s	0.000 to 1.00	Input / Output
Bypass	0 1	active bypass	0 1	Input / Output
Input Gain	-20 to 20	-20 dB to 20 dB	0.000 to 1.00	Input / Output
Maximum Program Gain	0 to 20	0 dB to 20 dB	0.000 to 1.00	Input / Output
Microphone Filter Bandwidth	.010 to 3.00	.010 to 3.00	0.000 to 1.00	Input / Output
Microphone Filter Bypass	0 1	active bypass	0 1	Input / Output
Microphone Filter Frequency	10 to 5000	10 Hz to 5 kHz	0.000 to 1.00	Input / Output
Microphone Filter Gain	-100 to 20	-100 dB to 20 dB	0.000 to 1.00	Input / Output
Microphone Filter Type	1.00 2.00 3.00 4.00 5.00 6.00 7.00	Low-Pass High-Pass Band-Pass Band-stop Parametric Low-Shelf High-Shelf	0 .167 .333 .500 .667 .833 1.00	Input / Output
Minimum Program Gain	-20 to 0	-20 dB to 0 dB	0.000 to 1.00	Input /Output
Output Gain	-20 to 20	-20 dB to 20 dB	0.000 to 1.00	Input / Output
Program Threshold Level	-60 to 20	-60 dB to 20 dB	0.000 to 1.00	Input / Output
Ratio	0.500 to 2.00	.500 to 2.0	0.000 to 1.00	Input / Output
Release Time	1 to 10	1 s to 10 s	0.000 to 1.00	Input / Output
Sensing	0 1	false true	0 1	Output