Bmw 320d with Active Sound Design shows how electronic noise cancellation works

BMW’s sound engineers recently used a 320d model with Active Sound Design to demonstrate the electronic noise cancellation that they’ve been hard at work on. Like all other automotive electronic technologies, the calibration of a noise cancellation system is crucial.

You may have heard of BMW’s Active Sound Design related to reports of a Mini prototype that was shown in 2009. The engineers made a four-cylinder engine sound like a V8 engine or a straight-six engine. In a release, Albert Kaltenhauser, Manager for Airborne Sound, Acoustics and Vibrations, said that to have the preferred acoustic patterns, they refined the natural character of the engine with an electro-acoustic system, making acceleration a special audio experience.
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quizz - 6/3/2010 11:29:20 AM

+1 Boost

It's like Milli Vanilli for cars, too funny.

HEY MY HONDA FIT CAN NOW SOUND LIKE A BMW M3!!! Gotta love technology.

Joe_Limon - 6/3/2010 11:56:25 AM

-1 Boost

Hmmmmmm I wonder how it works, it would be nice to electronically control resonance. Resonance can give you the equivalent of 10psi of boost but in traditional exhaust systems that can only be achieved at a certain engine frequency. It would be nice to electronically control it throughout the range.