reduce road noise by 3dB compared to other cancellation systems, effectively halving road noise.
Elsewhere, Sennheiser and Continental have put their bons together in a room to figure out an entirely new way of creating sound, this time without speakers.
Continental’s Ac2ated technology does without conventional speakers, using pulse motors to ‘excite’ certain surfaces to create sound instead, which is a lot like the way string instruments use open chambers to amplify the noise they make. Algorithms from Sennheiser’s 3D AMBEO software make the most of Continental’s actuators, which can be placed on the A-pillar, door trim and roof lining.
‘For Ac2ated Sound we have brought together the highest levels of expertise in the areas of acoustics, infotainment and vehicle design,’ says Continental’s Helmut Matschi. ‘In Sennheiser we have found an audio expert who helped us make our pioneering audio system even better.’
‘By integrating AMBEO Mobility with Continental’s Ac2ated Sound system, the in-car sound experience becomes completely immersive and natural, opening new audio perspectives and realities,’ says Dr Andreas Sennheiser, co-CEO of Sennheiser.
Sennheiser says conventional audio systems in modern vehicles can weigh up to 40kg; and that it and Continental’s technology reduces that figure by up to 90 per cent. Also, since interior designers wouldn’t need to make space for speakers in their cockpits or subwoofers buried in the luggage area, cleaner interior design concepts can be created.
Car makers can also reduce the amount of soundproofing materials in a production car if it uses active noise-cancellation technology, reducing weight and in turn putting less strain on the car’s propulsion system.
A processor calculates the exact soundwave required to counter the road noise
If your geofence-friendly hybrid has a route programmed in, it will keep plenty of charge in the battery for use in the ultra-low emissions zone.
APPROACHING THE ZONE FLIPPING THE SWITCH