The automotive sound system may be part of an active noise management system that minimises engine and road noise for the driver and passengers. One or more microphones are used to pick up sound from various locations on the vehicle, particularly the engine compartment, underside, or exhaust pipes, and these signals are processed by an Automotive Premium Audio System before being sent to the loudspeakers in such a way that the processed signal reduces or cancels out the outside noise heard inside the car. Lotus created an early technology that was solely focused on engine noise and licenced it for the 1992 Nissan Bluebird cars sold in Japan. Lotus later collaborated with Harman in 2009 to develop a more comprehensive noise reduction system, including road and tire noise. Noise and vibrations in the chassis one advantage of active noise control is that the car can weigh less, because less sound-deadening material is utilised, and there is no need for a hefty balance shaft in the engine. The removal of the balance shaft also improves fuel efficiency. The 2013 Honda Accord, as well as the 2013 Lincoln premium line and the Ford C-Max and Fusion models, utilised an active noise control system. Other operating data, such as the engine's revolutions per minute (RPM) or the car's highway speed, may also be used by the DSP. A multiple source reduction system can remove up to 80% of the noise.
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Click here for Automotive Premium Audio System press release:
https://www.coherentmarketinsights.com/market-insight/automotive-premium-audio-system-market-2318
