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But creating the setup isn’t just a matter of specific speaker positioning. At its core is a complex algorithm that calculates the control signals for each speaker swiftly and precisely.
In the first stage of the process, the software breaks the data for the music source down into its spatial components. It does this by using the spatial information contained in the data. For example, when an artist is singing from a stage, surrounding surfaces such as the floor, ceiling and walls of the concert hall reflect the sound with different time lapses. Using these different sonic reflections, the algorithm is able to calculate a mathematical model of any recording room.
The second stage of the process involves reassembling the sound portions so that the sound pattern inside the car corresponds to the original recording room. A digital signal processor uses 11 channels with a total of 23 speakers to produce the new 3D sound. Four of the speakers positioned in the A-pillars are what create the spatial height. The best part is that it works with almost any type of audio—whether streaming internet music, a CD, FM radio, or even a high-quality 5.1 surround-sound recording.
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In the 2016 Q7, the new 3D sound system will be available with either the Bose or more expensive Bang & Olufsen sound systems designed for the new SUV. Audi developed the technology in partnership with the Fraunhofer Institute for Integrated Circuits in Erlangen, Germany. A similar system with 12 speakers will be available on the 2016 TT.
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