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CES 2020: Continental and Sennheiser Partner for Speakerless Audio System in Cars

Continental Ac2ated Sound Sennheiser. (Image source: Sennheiser)

Continental Ac2ated Sound Sennheiser. (Image source: Sennheiser)

Continental’s concept abandons conventional speaker technology altogether, exciting select surfaces in the vehicle interior to produce sound.

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Continental and audio specialist Sennheiser presented a speakerless audio system for the vehicle interior at the 2020 CES. The two partners are integrating Sennheiser’s patented AMBEO 3D audio technology with Continental’s Ac2ated Sound system.

Continental’s concept abandons conventional speaker technology altogether, exciting select surfaces in the vehicle interior to produce sound. Combined with Sennheiser’s AMBEO Mobility, the concept achieves a breathtaking 3D sound reproduction that envelops passengers in an incredibly detailed and vivid soundscape and lets them enjoy their in-car entertainment to the fullest. In comparison to conventional audio systems, Ac2ated Sound enables a reduction of weight and space of up to 90 per cent. In this way, the system not only produces the highest audio quality but is also perfectly suited for electric vehicles, where saving space and weight is a high priority.

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Continental Ac2ated Sound Sennheiser. (Image source: Sennheiser)
Continental Ac2ated Sound Sennheiser. (Image source: Sennheiser)

Inspired by the technology of classical string instruments, which use their wooden body as a resonance chamber, specially developed actuators excite specific surfaces in the vehicle interior. The result is an extremely natural sound experience for the occupants, who feel as if they are sitting in a concert hall surrounded by sound. Additionally, in comparison with conventional speaker systems, the audio solution has a much lower weight and significantly reduced box volume. In comparison: With a multitude of components, conventional audio systems weigh up to 40 kilograms. By using already existing surfaces, Ac2ated Sound is distinctly more efficient in saving space. It achieves a reduction between 75 and 90 per cent in contrast to existing conventional systems on the market.

At the same time, the invisible audio technology gives vehicle designers and manufacturers the freedom to do more with an automobile’s interior, as they no longer need to account for large speaker faces taking up valuable space. With Ac2ated Sound, many components are unnecessary because the surfaces in the vehicle vibrate just like speaker diaphragms. Actuators cause components such as the A-pillar trim, door trim, roof lining and rear shelf to vibrate so that they emit sound in different frequency ranges. Continental and Sennheiser will present their futuristic audio system in a private exhibit at CES 2020, where visitors can experience how the system responds to the challenges for the next generation of vehicles by reducing weight and saving space without sacrificing sound quality.

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