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Speakerless cars could be the future

In the future, we could be driving around in cars without speakers thanks to technology being developed by Continental.

Continental’s engineers have been working on a system that uses surfaces within the car itself, such as the seats, dashboard and roof, in order to play music and other sounds. This will take away the need for speakers, which will reduce costs, as well as providing better fuel economy and limiting the weight of vehicles.

High-quality sounds
This new technology has been tested out by fitting it into a Mercedes C-Class. It uses sound actuators that produce noise by creating vibrations on the different surfaces within the car, which works in a similar fashion to a violin.

These sound actuators have been developed by combining a magnet and coil, which vibrates and transmits the sound along the surfaces, rather than using an oscillating membrane that is fitted into traditional speaker systems.

The way in which the Ac2ated Sound system works effectively makes the whole of the car a speaker, producing a better sound that can be heard clearly throughout the vehicle.

Different sounds
The engineers have discovered that they can produce varying sound frequencies by vibrating different surfaces of the car. For example, a higher frequency can be produced by the A-pillar, whereas the door panels are better suited to medium frequencies. They’ve also found that it’s possible to use the roof panels to produce the same effect as a subwoofer.

This system is 90% lighter than the speaker systems that are currently used, which will save weight and fuel, and it also requires less electricity and produces a natural 3D sound.

However, even though tests of these systems have taken place, full production of cars containing this technology is still a number of years away.

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Posted on 6th July 2017 at 4:14 PM

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