RTA - Band-Pass

The RTA (Real Time Analyzer) - Band-Pass component allows you to measure the magnitude of a signal over the audio frequency range. The RTA - Band-Pass is typically used for tuning your system. For example, you can place microphones around your venue, feed them into the RTA - Band-Pass, and adjust the EQ for the individual areas to get the best/same tuning for each area.

Controls

Control	Function	Default / Range
Response Panel	Graphical display of the RTA - Band-Pass response.	X Axis = 20Hz to 20kHz Y Axis = -80 dB to 20dB
RMS Response Time Constant (ms / sec)	Sets the RMS Level Detector time constant for both attack and decay. This controls how quickly the RTA - Band-Pass A respond to changes in the input levels.	Default = 100 ms Range = 100 ms to 30 sec
Max Hold Time (seconds)	Sets how long the maximum magnitude displays are held before refreshing.	Default = 1 Range = 0.1 to 10
Infinite Hold (button)	Holds the display, until the button is disengaged. During the period the Infinite Hold button is on, the RTA - Band-Pass updates the display with any magnitudes that are higher than the initial response, but does not change if the magnitude is lower.	Off / On
Clear Response	Clears the Response Panel display.	Off/Momentary On

Properties

Property	Function	Choices
Bandwidth	Selects the bandwidth for the band-pass filters in the RTA - Band-Pass. One octave provides 10 filters for the audio spectrum giving a wide bandwidth for each filter and a smoother response. A bandwidth of 1/24 octave provides 124 filters giving a narrow bandwidth for each filter, and a more granular response - more distinct highs and lows.	1 Octave 1/3 Octave 1/6 Octave 1/12 Octave 1/24 Octave

Property

Function

Choices

Bandwidth

Selects the bandwidth for the band-pass filters in the RTA - Band-Pass.

One octave provides 10 filters for the audio spectrum giving a wide bandwidth for each filter and a smoother response. A bandwidth of 1/24 octave provides 124 filters giving a narrow bandwidth for each filter, and a more granular response - more distinct highs and lows.

1 Octave

1/3 Octave

1/6 Octave

1/12 Octave

1/24 Octave

Control Pins

Pin Name	Value	String	Position	Pins Available
Clear	trigger			Input / Output
Frequencies	see note			Output
Infinite Max Hold	0 1	false true	0 1	Input / Output
Max Hold Time	0.100 to 10	100 ms to 10 s	0.000 to 1.00	Input / Output
Max RMS Levels	see note			Output
RMS Levels	see note			Output
RMS Response Time	0.010 to 1.00	10 ms to 1 s	0.000 to 1.00	Input / Output

Note: These outputs represent array values displayed in the RTA graph that may be used in scripting.