Silentium

Founded in 1997 by Yoel Naor and commercially active since 2005, Silentium is an Israeli company that has established itself as a specialist in active acoustic software solutions. The firm is headquartered in Ness Ziona, Israel, and operates with a team of 51-200 employees. Silentium has secured approximately $63 million in total funding across multiple rounds, with a significant Series D round concluding in June 2021, which will help scale the development and rollout of its technologies.

The company's business is centered on developing and licensing its active noise control (ANC) technology to Tier 1 automotive suppliers and vehicle manufacturers. By embedding Silentium's software into existing vehicle architecture, these clients can enhance passenger comfort and reduce reliance on heavy, passive noise-damping materials, which is particularly beneficial for extending the range of electric vehicles. The technology is already integrated into vehicles from major brands like Jaguar and Land Rover, and the company has a partnership with Hyundai Mobis.

Silentium's core offering is its Active Acoustics software, which can reduce unwanted noise by up to 90%. One of its key products is the Quiet Bubble™ (QB™), an Active Road Noise Cancellation (ARNC) system. This technology uses up to six accelerometers on the vehicle's chassis to detect noise from the road, tires, and wind across a broad frequency range (20Hz to 1kHz). A central control unit then generates an anti-noise signal that is played through the car's existing speakers, effectively canceling out the intrusive sounds. Another product, the Personal Sound Bubble™ (PSB™), utilizes signal processing algorithms to create individualized sound zones within the cabin. This allows each passenger to listen to their own audio without disturbing others, creating a headphone-like experience without the need for physical headphones.

Keywords: active noise cancellation, automotive acoustics, in-car audio, noise reduction software, personal sound bubble, vehicle cabin comfort, active road noise cancellation, automotive technology, sound management, Yoel Naor, Quiet Bubble, NVH solutions, embedded software, acoustic engineering, automotive suppliers, electric vehicle technology, sound zones, Jaguar Land Rover, Hyundai Mobis, lightweighting