Music and radio broadcasts have been available in cars for a long time and as automotive as well as audio technologies have progressed, the quality of reproduction has become better and better, comparable even to home audio systems. Developing and tuning audio systems for a car cabin is a specialized field and manufacturers usually collaborate with the best audio companies in the business.
Continental teamed up with audio specialist Sennheiser to develop a speakerless audio system for cars. The unique system fills the vehicle interior with lifelike immersive sound. The two companies are integrating Sennheiser’s patented AMBEO 3D audio technology with Continental’s Ac2ated Sound system.
Continental’s innovative concept abandons conventional speaker technology altogether, instead employing select surfaces in the vehicle interior to produce sound. Combined with Sennheiser’s AMBEO Mobility, the concept achieves a 3D sound reproduction that envelopes passengers in an incredibly detailed and vivid soundscape and lets them enjoy their in-car entertainment to the fullest.
Space-saving and lighter
In comparison to conventional audio systems, Ac2ated Sound enables a reduction of weight and space of up to 90%. In this way, the system not only produces the highest audio quality but is also ideal for electric vehicles, where saving space and weight is a high priority.
“For Ac2ated Sound, we have brought together the highest levels of expertise in the areas of acoustics, infotainment and vehicle design. In Sennheiser, we have found an audio expert who helped us make our pioneering audio system even better,” said Helmut Matschi, Member of the Executive Board and Head of the business area Vehicle Networking and Information at Continental. “Together, we have developed an audio system that creates premium sound out of nowhere. Additionally, Ac2ated Sound reduces space and weight. At Continental, we call this sustainability that’s music to your ears.”
Transforming the vehicle into an instrument
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 kgs and by using already existing surfaces, Ac2ated Sound is distinctly more efficient in saving space. It achieves a reduction between 75% and 90% 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 accommodate speaker faces that take up valuable space. With Ac2ated Sound, many components are unnecessary because the surfaces in the vehicle vibrate just like speaker diaphragms.
