The makeup of the new material is simple. A combination of a lattice structure and plastic film controls air vibrations to limit the transmission of wide frequency band noise (500-1200 hertz), such as road and engine noise.
Currently, most materials used to isolate this frequency band consist mainly of heavy rubber board.
Because of its simple structure, the material's cost competitiveness in terms of mass production is almost the same as, or possibly better than, current materials. Therefore, the material can also be applied to vehicles where the use of sound insulation materials is currently limited due to cost or weight.
Making vehicles lighter helps limit the environmental impact of driving by improving energy efficiency. It also enhances enjoyment, as the quiet vehicle cabin makes driving more comfortable.
Visitors to CES 2020 can see and experience the new acoustic meta-material at
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