Sound masking is based on the phenomenon that when "low level background noise" is added to an environment, intruding speech and noises are less intelligible. The term white noise is widely used when referring to speech privacy or sound masking systems, although these systems don't actually use white noise.
The technology behind "sound masking" came out of the realization by scientists and engineers that "oral privacy" is actually a simple matter of making speech "unintelligible". That is, if each of us can't understand what the other is saying, we effectively have established "oral privacy" - even though we may still be able to see and, to some extent, hear each other.
Sound masking "fills in" the sound spectrum around you with
barely perceptible "low level noise", so that speech is rendered
unintelligible. It's actually designed to sound like typical office air
conditioning noise, so that you won't notice it. In other words, it's a
gentle "whooshing" sound.
The VoiceArrest Sound and Speech Privacy System provides state-of-the-art sound masking for office and other open spaces. This system is ideal for:
Voice Arrest System meets HIPAA, GLBA, PIPEDA, FCRA, Homeland Security,
Patriot USA, CA-SB1 and other new state and federal privacy