Vesselnik Johan (Johan Wesselink) from the University of Twente (University of Twente) in the Netherlands has developed a device active noise control. His invention reduces the force of sound waves and vibrations through the creation of waves “atnishuma. The researchers believe that the device will be used in the transportation industry and the industry a few years. For the realization of the idea Vesselnika prompted a growing level of background noise from air, road and rail traffic. The consequences can not be underestimated: in addition to the possibility of damage to the auditory organs of people may suffer from a lack of full sleep, inability to concentrate, nervousness and high blood pressure.
device Vesselnika uses microphones to capture sound and generates a “antinoise” wave through the column. The effect is achieved through a specialized algorithm and unique hardware. In contrast to passive systems, noise control, includes the construction of barriers to the use of sound or sound insulation and sound-absorbing materials, which increase the value of the protected object, the new development should one day become a universal solution. For example, can reduce the mass of cars and thereby reduce fuel consumption. Currently the system is evaluated for the possibility of practical application and tested at the naval frigates, barges and heavy vehicles. Unfortunately, other details about the device is not granted, but the concept of this method of noise reduction can hardly be called innovative – individual solutions have repeatedly been suggested, including in the form of schemes for radio amateurs. However, widespread use, they are not found.
Materials on the topic:
– Party Box – Karaoke for your computer;
– The first set of false noise-canceling headphones to 98,4% from Sony;
– alarm-gong, which will wake even the sleeping soundly.
