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BMW M5 generates fake engine noise using stereo
For a driving enthusiast, there's nothing like the throaty roar of a well-tuned engine. ...some automakers have been seeking ways to preserve and enhance the visceral sound of an angry engine for their performance-oriented models.
BMW... artificially replicates engine noise in the cabin using the stereo system.
What BMW has done is link the M5's car stereo system's digital signal processor (DSP) into the engine management system, which allows the audio system to simulate the sound of a twin-scroll, twin-turbocharged V-8 engine in sync with the actual 560-horsepower mill humming away in the engine bay... as you rev the engine or accelerate away from a traffic light, the car stereo will be recreating the bark and roar that you'd normally be missing from the driver's seat through the speakers.
There's nothing like the sound of a Supercharged 640HP (540 RWHP) HEMI!
Or , cyclists and pedestrians wearing ipods can't hear cars coming.
these idiots go round a roundabout by going to the centre and then out again