Audiostat Noise Compensator


Background Information:

When ambient noise (environmental noise) gets in the way of effective public address communications, the following situations can arise:

1) Signal strength is much greater than background  noise -too loud and annoying!
2)  Signal strength is almost equal to the background noise - can hear something, but can't tell what!
3)  The background noise is much greater than the signal strength - can't hear anything!


Using Audiostat technology, all of these situations are easily handled, making P.A. speech intelligibility and music clear and audible.

How does Audiostat work:

Using proprietary technology called Intelligibility Compensation in Ambient Noise - ICAN^TM,   Audiostat responds to environmental noise (not just level) variations seamlessly, without sudden, annoying increases or decreases in volume level. Most of the time, the listener will be completely unaware of the automatic adjustments being made. The result is a system that always delivers crystal clear sound at an optimum level to maximize intelligibility and audibility without being intrusively loud. The audio environment consist of three components:
1) The level and spectral content of the sound signal
2) The level and spectral content of the ambient noise
3) The physical characteristics of the audio 'enclosure' - retail store, subway station, train station, bus, train, airline terminal etc.

Any change in (3) will impact (1) and (2). Audiostat monitors (1) and (2) simultaneously as both the level and spectral content of both the sound signal and ambient noise constantly change and interact with each other. Different types of ambient noise will have a different effect on different types and levels of PA signal.
In addition Audiostat automatically compensates for any changes in (3) without the need for recalibration. As audio conditions are in a constant state of flux, Audiostat constantly makes subtle adjustments to optimize intelligibility.


What is Ambient Noise:

This is any noise in the environment. It can be the voices of a crowd, the noise from a plane passing overhead, background factory noise etc.

What is an Ambient Noise Compensation Device:

This is an electronic device that responds to changes in environmental noise and automatically adjusts the PA system or music so that it is always sounds clear. An example: a department store where music and announcements need to be heard. The device keeps the signal from the PA higher than the noise in the environment so that the signal (voice or music) can be heard clearly. When there are more people in the store (ie. more background ambient noise) the signal will have to be higher, and when there are fewer, the signal will have to be quieter.