Why doesn NOISEBATH use direct transducers on windows and walls?.
The spatial radiation of the NOISEBATH masking formula further increases the non-deterministic and unpredictable nature of the signal, and further increases the difficulty of penetration. Because no less than four different, unique and constantly changing signals are independently, spatially radiated outward from the protected signal source, the signals mix spatially to different degrees and in different proportions throughout the environment. This means the noise “bath” has a unique spectral signature (amplitude vs. frequency graph) at each and every point in the environment. Hence, a listening device in one corner of a room will monitor a different signal than a listening device in another corner, or anywhere else. This was the primary purpose in using spatial radiation. Other alleged masking systems often use solid transducers – their masking is radiated directly into as many surfaces as possible, or at least the ones in which listening devices will “probably” be placed. While this
