Bose to use its noise can­celling in cars to block out road noise

It will even stop you hear­ing the squeaks and rat­tles as your car gets older

Sunday Times (Sri Lanka) - - INTERNATIONAL - By Mark Prigg (© Daily Mail, Lon­don)

Bose wants to use the noise-can­celling tech­nol­ogy found in its head­phones to block out sounds from out­side cars.

The lead­ing au­dio brand has de­vel­oped a way to elim­i­nate noise cre­ated by rough roads, us­ing ac­celerom­e­ters and mi­cro­phones to mea­sure vi­bra­tions.

Soft­ware and al­go­rithms can then cal­cu­late an acous­tic can­cel­la­tion sig­nal to be played through the car's speak­ers to limit unwanted noise.

Mi­cro­phones placed in­side the cabin mon­i­tor resid­ual noise lev­els, al­low­ing the sys­tem to adapt the con­trol sig­nal for op­ti­mized per­for­mance over dif­fer­ent road sur­faces, while au­to­mat­i­cally ad­just­ing over time as the ve­hi­cle ages.

At present, many car mak­ers use thick in­su­la­tion and cus­tomised tyres as a way to com­bat ex­ter­nal noise, but Bose says these ap­proaches are not only less ef­fec­tive but can in­crease the ve­hi­cle weight and re­duce fuel ef­fi­ciency.

The move is the com­pany's lat­est at­tempt to help bring down noise lev­els in ve­hi­cles.

Since 2010, it has used its tech­nol­ogy to tackle en­gine sounds.

' For years, we've been asked why we can't sim­ply adapt our noise-can­celling head­phone tech­nol­ogy to ve­hi­cle cab­ins for a qui­eter driv­ing ex­pe­ri­ence,' said John Feng, man­ager of Bose's ac­tive sound management so­lu­tions team.

' But we know it's much more dif­fi­cult to con­trol noise in a large space like a car cabin com­pared to the rel­a­tively small area around your ears.

'How­ever, through re­search ad­vances and our re­lent­less ef­forts to solve tough prob­lems, we've achieved a level of road noise re­duc­tion that sets Bose apart from com­pet­i­tive of­fer­ings.'

Bose says the so­lu­tion will be avail­able to man­u­fac­tur­ers whether or not they use their own in-car sound sys­tems, with the first mod­els to use Qui­etCom­fort RNC ex­pected to be in pro­duc­tion by the end of 2021.

Bose wants to use the noise-can­celling tech­nol­ogy found in its head­phones to block out sounds from out­side cars.

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