With the team of founder
scientists/engineers, experts in this high tech emerging field, it is
expected to reduce the noise levels in many walks of life, through the
development of this Electronic Sound Barrier. The approach will
involve the development of a novel system that will be portable,
user friendly and economically viable.
The Technique
This unique approach involves generating an
acoustic shadow (quiet zone) from unwanted noise. To produce an effective
shadow over a substantial area (angle), a diverging array of fundamental
cancelling systems (speakers and apparatus) are arranged within shadow
control angles. From the information it receives at the microphone
detectors, and after converting the noise via digital signaling, the
secondary speaker broadcasts the anti-noise. The output is adjusted
automatically, and synchronized with the source of noise.
The technique has demonstrated that the shadows are
potentially superior to those generated by conventional barriers. The
system has intelligence giving it the ability to eliminate diffraction and
out perform conventional sound blocking systems. In addition, the shadows are
selective only to the sound to be reduced leaving other wanted sounds
unchanged. The system has the potential to adapt automatically to maintain
it’s shadow depth and direction even through outdoor environmental
changes.
The Program
The program includes the development of a fully
automatic, self adjusting, multi-channel system for the reduction of
predicable (periodic) noise. The technology will be extended and updated
to reduce unpredictable noise (speech and music), the technology will be
demonstrated on real noise problems.
Commercial designs will be undertaken. Here
user-friendly operating software and procedures will be developed,
including rationalizations of the hardware design, further reducing costs
and optimizing computing efficiency. This will culminate in an embedded
stand-alone system that will be portable, user friendly and economically
viable |
