Israeli chip developer Silentium Ltd. has completed a $250,000 R&D project with General Motors to reduce the noise emanating from air conditioners in automobiles. Silentium’s technology detects the sound and sends out wavelengths of the opposite phase, to cancel out what would otherwise be heard.

 

Although such techniques have been much discussed and used Silentium (Rehovot, Israel) claims to have proprietary active noise control algorithms.

 

GM is expected to put the Israeli company’s chip into its 2008 Yukon sports utility vehicle. A separate agreement will give Delphi the rights to market the chip to other car manufacturers.