German automotive parts supplier Continental has developed a new speaker-less audio system for cars it calls Ac2ated Sound. Continental says the new system will reduce the amount of weight traditionally taken up by car speakers by up to 90 percent, using surface vibrations to deliver sound, much like a violin.
Continental’s system replaces speakers with actuators, which are tiny transducers similar to the core of a traditional speaker. The actuators are attached behind panels in the car, and create micro-vibrations that are then carried by surfaces. Dimitrios Patsouras, Continental's engineering director in charge of noise, vibration and harshness, tells Wards Auto that different parts of a car’s interior are suited to deliver different...
from
https://www.theverge.com/2017/10/25/16545614/continental-audio-system-car-interior-speakerless
from
http://ifeeltechinc.blogspot.com/2017/10/this-new-audio-system-turns-your-cars.html
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