SM-001
In some older buildings the above locations do not exist. Vibration maskers have been applied in a number of facilities. One application is use on top of a gypsum board ceiling; the entire gypsum panel becomes the speaker.
They have also been attached to air supply ducts, radiating masking through the air diffusers. In other cases, maskers were hidden above air ducts in open ceilings. Masking speakers have been placed under desks, under open office work surfaces, and behind paintings. The figure above shows a wall mounted masking speaker.
SM-002
Sound masking generators have been used for personal application for many years.
There are several devices for home, hotel, or air travel, primarily for sleeping.
The figure above shows a masker that has been on the market for many years.
SM-003
Sound masking generators have been used for personal application for many years.
There are several devices for home, hotel, or air travel, primarily for sleeping.
There are several devices for home, hotel, or air travel, primarily for sleeping.
AS-004
Masking operates by covering up or masking unwanted sounds, similar to one-way windows that block the ability for a person to see persons behind them, or perfume that covers up other body doors.
This is in contrast to the technique of active noise control which attempts to eliminate the unwanted sound.
Sound masking is used in homes, commercial offices, medical facilities, court rooms, and in secure facilities to provide secrecy.