Ambient Sensing Leveler (gap sensing)

Purpose

The Gap Ambient Sensing Leveler provides an automatic volume control when the ambient noise levels in a venue start to affect the perceptibility of paging announcements and background music.

The device measures the following:

• The incoming program material level.
• The ambient level from the incoming zone (using a microphone connected to the sense input).
• The output level of the Ambient Sensing Leveler device.

The ambient sound level is measured during gaps in the program material. The device then applies gain to the input signal based on the detected ambient level.

The Gap version of the Ambient Sensing Leveler is easier to set up and consumes fewer DSP resources than the regular version. Also, the device accurately calculates the necessary gain even when there are long gaps in the program material.