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Block Reference

Boundary Mic Input Block (RAD17)

How to Use

A RAD Boundary Mic Input block represents the microphone signal received from the RAD 17 connected to the corresponding RAD port on the HAL or EXP device.

Adding the Block to Your System
  1. Click the Processing tab to open the Processing Workspace.
  2. In the palette area, click the I/O tab.
  3. In the Remote Audio Device Ports category, find the RAD17 you want. Click and drag its Mic Input block into your Processing Map.
  4. note: A RAD does not appear in the I/O palette until it has been added to the system in the Hardware Workspace.

  5. Wire the block's output to the appropriate block in the system.
  6. (Optional) Customize the block name, channel name, and/or output node name by clicking the current name and then typing the custom name in the text box that appears. Click the X to save the name.
Configuring the Block
  • Open the Mic Input block's properties by double-clicking the block or hovering and clicking the properties icon that appears in the upper right of the block's title bar. From this dialog box, you can do the following:
    • In the Sensitivity area, adjust the Gain to the appropriate level depending on the sensitivity you need in your application.
    • Set the value of the block's output by adjusting the Level Gain slider or entering a value in the edit box.
    • Provide volume control to end users by linking one or more DR1 or DR3 level controls to the block's Level Gain control. You can limit the range of end user volume control by adjusting the minimum and maximum values at either end of the level control. For example, to give the end user 24 dB of attenuation, set the minimum to -24 dB and the maximum to 0 dB. To change these values, click the minimum or maximum value displayed below the slider. An edit box displays in which you can set the Minimum and Maximum parameter values.
    • Cause the audio to mute completely when dialed to the low end of its range by selecting the Off @ Min checkbox. Using the example range described above, checking Off @ Min provides continuous volume control from 0 dB to -23.9 dB and then mutes the audio completely.
    • Mute the output channel—without changing the specified Level Gain value—by selecting the block's Mute checkbox. You can provide end users with control over this Mute parameter by linking the block's Mute control to a Logic In, DR2, or DR3 Toggle control.
    • View meter data (when connected to a HAL) for the audio signal after passing through the Sensitivity settings as well as after passing through the Level settings.

User Interface Elements
Boundary Mic Input Block

UI Element Purpose
Analog Input (Channel 1) The input channel connected to the corresponding RAD port on the HAL or EXP device
Output node Connection point for wiring the Mic input channel to a specific output
Boundary Mic Input Block Properties

UI Element Purpose
Sensitivity Provides a place to adjust the Gain depending on your application. The meter displays signal level after passing through the Sensitivity settings.


Gain (both a manual and linkable control) sets the value of the block's channel output. Also specified is the range with a Minimum and Maximum value. Change the level by adjusting the slider or entering a dB value in the edit box. Provide end users with control over the volume by linking this Level Control to the Level Control of a DR1 or DR3. Change the range by clicking the Minimum or Maximum value and then typing new values in the edit box that appears.

Default Gain = 0.0 dB; Default Minimum = -88.0; Default Maximum = 12.0

Selecting Off @ Min causes the audio to mute completely when dialed to the low end of its range.

Select Mute to mute the block's output without changing the Gain value. Provide end users with output mute control by linking this Toggle Control to the Toggle Control of a DR2, DR3, or Logic In port.

The meter displays signal levels for the block's output (when connected to a HAL).