A revolutionary noise reduction device for cars, ships and rooms

Leucine: Swedish experts have created a speaker-like device that can absorb car, room and airplane noise to make it quieter.

Experts from the Swiss Federal Institute of Technology have rated the silent speaker as 100% effective. It emits ionized air containing plasma. Thus a 17 mm ultra thin membrane can reduce 20 Hz noise as much as a four meter thick wall.

We know that sound travels through the air in the form of waves and reaches our ears. In response, the speaker creates patterns similar to those emitted by soft music and cuts through the noise. It has an intelligent technology behind it.

Under active noise cancellation, it has a microphone that first detects the noise waves and emits (sound) waves of the same pattern and strength from the speaker, thus reducing the noise.

This speaker works best at room level, but according to some analysts, many such speakers would be needed to cancel the noise inside a large camera.

But Swiss experts have made it so thin that large panels can be mounted on walls. It will also be a cost-effective and convenient method. Due to its light weight, it will be very easy to manufacture and mount on the wall.

Another important thing is that the pressure of the speaker can be reduced or increased by the lack or excess of current. A video of its practical aspect has also been released.

After several experiments, plasmaacoustic speakers have been shown to have excellent performance. Interestingly, they can also reduce high frequency sounds.