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C9 To Have No Radio Speakers Thanks to New Continental/Sennheiser Auto System?

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  • C9 To Have No Radio Speakers Thanks to New Continental/Sennheiser Auto System?

    Today’s CES announcement was of a brand new car stereo system. Imagine the weight savings of not having any speaker magnets (-75 pounds approx), and the space savings of not having any speakers at all (-80% or more volume reduction). We sure hope that this is the C9’s world.

    Click image for larger version  Name:	0ED3381D-4B54-4B74-ABD9-FA72E5C82CC4.jpeg Views:	1 Size:	163.7 KB ID:	100978

    Originally posted by theDetroitBureau
    Continental, Sennheiser Pioneer Speakerless Sound System for Vehicles

    System borrows from centuries-old concept.


    by Joseph Szczesny | Jan 7, 2020


    Continental and Sennheiser have combined to produce a speaker less auto system for vehicles.

    Auto supplier Continental has teamed up with Sennheiser, a specialist in audio equipment, to develop a revolutionary speakerless audio system for piping entertainment into a vehicle’s interior.

    The unique system, which they put on display at the Consumer Electronics Show, fills a vehicle’s cabin with immersive sound and by eliminating the need for speakers, it saves weight, which is at a premium in the auto industry now.

    The system abandons conventional speakers by integrating Sennheiser’s patented AMBEO 3D audio technology with Continental’s Ac2ated Sound system.

    Instead of using conventional speakers, the system excites select surfaces in the vehicle’s interior to produce sound. Combined with Sennheiser’s AMBEO Mobility, the concept achieves 3D sound reproduction that envelops passengers in a soundscape that lets them enjoy their in-car entertainment.

    The new speakerless sound system works by exciting certain materials in the vehicle.

    In comparison to conventional audio systems, Ac2ated Sound enables a reduction of weight and space of up to 90 percent. 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, Continental officials said.

    “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.”

    Andreas Sennheiser, co-CEO of Sennheiser, said, “We are delighted to bring our audio expertise and AMBEO Mobility software into the pioneering Ac2ated Sound system from Continental, calibrating and fine-tuning the sound quality to deliver a completely immersive and natural sound experience that opens new audio perspectives and realities.”

    The technology borrows from classical string instruments, which use their wooden body as a resonance chamber. In this case, the system uses specially developed actuators to excite specific surfaces in the vehicle’s 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.

    Compared with conventional speaker systems, the audio solution has a much lower weight and significantly reduced box volume.

    With a multitude of components, conventional audio systems weigh up to 40 kilograms or more than 88 pounds. 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.

    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.

    Instead, 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.
    https://www.thedetroitbureau.com/202...-for-vehicles/
    GBA Black; HTO Twilight/Tension interior; Z51 & Mag Ride; E60 lift; 5ZZ high wing; 5VM vis CF ground effects pkg; FA5 interior vis CF; ZZ3 engine appearance; 3LT; Q8T Spectra Gray Tridents; J6N Edge Red Calipers; SNG Edge Red Hashmarks; VQK Splash Guards. Separately getting from my dealer RCC Edge Red engine cover, 5JR vis CF mirror caps, and VJR illuminated sill plates.

    Lifetime, annual contributors, and 20+ year members of National Corvette Museum.

    Home is the beautiful Pacific Northwest.

  • #2
    Not sure that is the kind of vibration I want in my car.
    Murray - Uxbridge, Ontario, Canada
    Torch red coupe, Adrenaline red 2LT Q8Q E60 NPP

    Comment


    • #3
      It will be interesting to monitor where this goes. Back in the early 2000s, NXT had a similar technology with transducers mounted on the back of composite/thermoplastic panels. I worked at Owens Corning at the time and some of my colleagues worked on this. They did a Silverado that had some of the interior trim panels retrofitted with this technology. TVR actually put this idea into production. GM and some other OEMs licensed the technology, but it never reached mass production.
      Al Chan
      C8 configuration: Z51/FE4 2LT Coupe; Long Beach Red/Natural Napa competition bucket seats; some other minor stuff
      Other Corvette experiences: '69 427/390 coupe; '92 Z07 coupe; '03 Z06; '09 Z06

      Comment


      • #4
        How do they get deep Bass out of that system? I'm not sure I want to see a piece of trim rattle that much.

        Off-topic: I honestly don't understand why it takes 14 speakers to make a "premium" sound system in a 2 seat car. Seems like fewer, higher quality pieces would be fine. 5 speakers, maybe 7 max, plus a subwoofer.
        Atomic Orange C6. Plenty of engine and suspension mods.

        C8 HTC with Z51 FE4 coming summer/fall 2020.

        Comment


        • #5
          I'm focused on C8...hoping it will be all that I could ever want.
          Recently sold:
          Shark Grey '15 Z51 Coupe : White / Blue Diamond '13 427 60th roadster ( really miss the 'stripe delete' 427 )

          Status 1100 - 7th Corvette... Zeus Bronze Coupe, 2LT, GT2 seats, Natural two tone, Body color accents, Pewter wheels

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          • #6
            Sounds like an effort to adapt electrostatic technology, which has been used in home audio speakers for many years. Such systems usually had superb audio fidelity, but limited volume levels, and low efficiency.

            Comment


            • #7
              Originally posted by Ragtop 99 View Post
              Off-topic: I honestly don't understand why it takes 14 speakers to make a "premium" sound system in a 2 seat car. Seems like fewer, higher quality pieces would be fine. 5 speakers, maybe 7 max, plus a subwoofer.
              You already know the answer. It's marketed to people who are preconceived to think that more of anything always means better.

              Comment


              • #8
                Well I see the old quirk of picking up the radio on your dental fillings and braces has finely been brought to its ultimate conclusion .🤐
                2014 Stingray Laguna Blue “Cindyblue”
                2000 status 😊👍
                2020 C8 Stingray; 3LT ; GS7 Elkhart Lake Blue ; HTO Twilight/Tension interior; Z51;FE4 Mag Ride; C2Q dual roof ; FA5 interior vis CF; ZZ3 engine appearance; Q8T Spectra Gray Tridents; RCC; J6E yellow Calipers; VQK Splash Guards; R8C

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                • #9
                  Maybe they can just chip our brain with a minor implant and we can listen to our own music.
                  Rocket City Florida

                  Comment


                  • #10
                    You know that the first thing they will do is work on "piping in" more engine noise, and that makes me sad At least it's not two 6 x 9s under the back glass

                    Comment


                    • #11
                      I am skeptical. You can't get balanced high quality audio by slapping transducers on random surfaces.
                      Torch red 1LT, no options

                      Comment


                      • #12
                        Originally posted by WillRockwell View Post
                        I am skeptical. You can't get balanced high quality audio by slapping transducers on random surfaces.
                        Will - that's one of the key development areas - materials technology to get the acoustic attributes you want while meeting the cost and performance targets for the part (i.e.: if it's a rear interior quarter trim panel, head impact, flammability, stiffness requirements). The work that Owens Corning did was so long ago that much of the internet public domain knowledge has been purged, but I did find some articles relative to OC and also the TVR application. To Ragtop99's comments, bass was an issue on the development vehicles that were built back then, so subwoofers were used for low frequency and then mid- and high frequency were handled by the transducer/panel approach.

                        Sure, this technology wasn't adopted 16 years ago due to a number of reasons that I can't mention, but with the advancement of electronics and materials, and the ever-increasing emphasis on packaging depth on the interior of vehicles, who knows what happens? I look at active noise cancellation as an example. I did a research paper on this, while in college, in the early '80s!

                        https://www.designnews.com/automatio...87732582336859
                        https://www.embedded.com/nxt-gains-f...ive-design-in/
                        Al Chan
                        C8 configuration: Z51/FE4 2LT Coupe; Long Beach Red/Natural Napa competition bucket seats; some other minor stuff
                        Other Corvette experiences: '69 427/390 coupe; '92 Z07 coupe; '03 Z06; '09 Z06

                        Comment


                        • #13
                          GM will have to get over it's love affair with Bose to adopt this system. Bose is too invested in cheap paper cones priced like high quality drivers to ever give them up.
                          SunKissed, my 2015 2LT, 7MT, Black over Daytona Sunrise Orange Metallic, Stingray convertible (One of about 40)

                          Purchased 5/2/2015,
                          >35,000+ miles

                          Proud member of the Old Dominion Corvette Club. Check us out http://www.olddominioncorvetteclub.org

                          Never grow up - It's a trap.

                          Comment


                          • #14
                            Have any of you heard these systems in action?
                            Is it electrostatic as mW Rob mentioned?
                            TPW March 2. 3LT, Z51, FE4, Black GBA, ZZ3, Black interior with Red seats/red stitch HU0 & 2 tone TU7, E60, J6N, RIK, Q8Q, etc.
                            Medicine Hat, Alberta, Canada

                            Comment


                            • #15
                              "The new speakerless sound system works by exciting certain materials in the vehicle."

                              I'd get excited if it sounded great, was safe, and offered other advantages.

                              Comment

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