Calibrating and using the Ambient sensing leveler

1. Verify the placement, working condition and gain staging of all microphones.
2. Make sure the Ambient Sensing Leveler device has been correctly wired, and that there is a NioNode in your project, then deploy it.
3. Open the Ambient Sensing Leveler block.
4. Next to Gain Update, click Bypass .
5. Set the Sense RMS Time to 3 seconds, or a larger value for a noisier environment.
6. Verify the placement of all microphones.
7. Gain stage the elements in the circuit properly, so that the output volume (Gain meter) in the zone is at the maximum expected level.

   Make sure the Spkr (speaker) and Sense input levels are in the range 0 to -20dB. This allows good resolution and sufficient headroom for ambient increases.

8. Wait for the Spkr (speaker) and Sense input levels to settle, and then start the program material or pink noise.
9. Click Start.
10. Decrease the level of the source material connected to the Pr (program source) input to the proper listening level for the current ambience level, then wait for the RMS levels to settle at this new level.
11. Click Start again to deselect the calibration mode.

At this time, Room Gain will be updated and the meter under Ambient Level will begin to reflect the true ambient level. Upon successful calibration, you may now set the dynamics controls for the gain cell (in the Gain Update section) without having to recalibrate the device.

Calibration information will be saved with the NWare project file as default information (for each instance of the Ambient Sensing Leveler device). Presets or SubPresets may also be used to save calibration and device settings.