CAR (UK) - - Tech -

re­duce road noise by 3dB com­pared to other can­cel­la­tion sys­tems, ef­fec­tively halv­ing road noise.

Else­where, Sennheiser and Con­ti­nen­tal have put their bo“ns 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.


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