060 Magazine Audi Tailors Synthetic Sound For The R8 etron (w/Video)

31 Мар 2014 | Author: | Комментарии к записи 060 Magazine Audi Tailors Synthetic Sound For The R8 etron (w/Video) отключены

Giving electric sports an appropriate sonic footprint.

should the car of tomorrow sound For the last century, the internal engine has been the lead in the symphony of automotive noise, but electric motors poised to a larger role in pushing around in the future, engineers to find new ways to bring character to 21st Century

Audi, for their part, is hard at work developing the of their future electric cars will make. And we would have just the sound made by the flying on The Jetsons and set it to play through the car s Audi is, y know, actually this seriously.

Very Audi is currently hard at developing an all-new sound for the R8 e-tron. and their audio are working on the task with the intensity Jimmy Iovine to cutting a record. The e-tron s won t be a single prerecorded track; the it creates are being constantly by the computer from a variety of source sounds, based on like the electric motor s the car s speed, and the load on the car.

When it finally reaches the this year, the R8 e-tron s will be broadcast through a speaker mounted below the car so can glory in the sound of the future. so they can get the hell out of the way.

Audi]

Acoustic innovation: by Audi

— The brand is new sound signatures for its future models

— A control generates sound based on from the car

— A loudspeaker the sound signature

Audi’s e-tron models will long distances powered by silent electric motors. To that pedestrians in urban will hear them, the has developed a synthetic solution: e-sound.

Rudolf Halbmeir’s is not exactly typical of an Audi There is a digital piano on his two studio-quality loudspeakers next to his monitor, and a pile of music off to the side. “A car’s sound,” Halbmeir, an acoustics engineer, “is to music.”

Sound is an especially aspect of a vehicle. Although it can be in physical terms, there is no for experiencing it firsthand. A car’s is emotional, not intellectual. Although we register a car’s sounds occasionally while on the road, are always there – playing a role in the driving experience.


Sounds send signals. frequencies suggest power and while mid-range frequencies sportiness and agility.

All Audi produce sound signatures are not only well-rounded and harmonious, but broadcast performance, premium and respectability. “Good sound is a complex endeavor,” explains Dr. Kunkel, Head of Acoustics at “We have gathered a lot of expertise the years. We have also how to amplify pleasant frequencies and to unpleasant noises.

In a series-production a combustion engine currently the music. Conversely, the motor in an e-tron is not an option, as it is too quiet and its frequencies are not exactly melodious. e-tron models will feature a synthetic sound Rudolf Halbmeir teamed up his colleagues Axel Brombach and Dr.

Hinrichsen to create it.

They computers to do most of the work. software to mix and listen to tones, and then re-mix: Halbmeir is enthusiastic about the creative After all, in his spare he writes songs and composes in his own recording studio – where he plays a lot of instruments. “I create emotional sound structures,” Halbmeir. “There aren’t differences between music and a sound. I trust my instincts and to try out new ideas to determine where will take me.”

Which ideas, exactly? science-fiction films provided suitable for certain frequency responds Halbmeir. “But was nothing in the real world offered quite the right When you compose music or you have to be true to your The moment you cut corners, you essentially end up elevator music.”

Dr. Ralf adds: “Because we here at are all automotive experts, we have a advantage over sound elsewhere. We know our vehicles and out, not to mention how they and behave.”

The e-sound by Audi may be but it is authentic. In fact, the e-tron generates its sound by the millisecond. Dr.

Hinrichsen, the expert for hardware and explains: “Data relating to the motor’s rotational speed, speed, loads, and other is continuously supplied by the vehicle to the unit. It then uses data to generate sound.”

The e-sound is played via a sturdy attached to the car’s undercarriage. Brombach, the specialist in this shares details: “We designed it to as much as 40 watts, but during operation it ranges between and eight watts. That’s enough for nearby pedestrians and to hear the e-tron.” A fraction of the signature enters the vehicle’s via airborne and structure-borne sound “We could utilize sound and mechanical actuators for more in the interior,” explains Dr.

Kunkel. all, a vehicle body is a large soundboard. But we believe that our e-tron models for an atmosphere of calm, which conveys the unique experience of driving.”

Key measurements: the acoustic bed

A change in scenery: the acoustic bed on the building’s ground floor is a room, spanning some 350 m2 a seven-meter ceiling. Dense of wedges full of glass each a meter in length, from the walls. These absorb a majority of any sound things sound almost they do outdoors.

In the middle of the room is a dynamometer bed, between two long of microphones atop tripods. The serves primarily to measure as if the vehicle were driving by, tires on the roller and the microphones acoustic data.

Halbmeir and his used the acoustic test bed to many key advancements for the R8 e-tron which features e-sound All the while, they had to remain of regulatory developments. Dating to early 2011, guidelines are crafted in the United States the volume of alerts emitted by vehicles.

“We’ll probably to ensure audible alerts up to 30 km/h; above that the tires generate enough says Dr. Kunkel. “But isn’t quite satisfactory – surely increase the upper for alerts.”

“The test bed was a key tool for us,” says Brombach. “It did not, however, us to genuinely evaluate the e-sound. We missing everyday conditions as motion, wind, and other So we then drove on actual Listening, seeing, feeling: all go together.”

Out of the building and to the street. A red R8 e-tron pulls up around the purring gently. But when Halbmeir taps the gas pedal, the turns into a cultivated

Though not unlike an elegant V8, it is pure and nuanced, and is shrouded in and innovative overtones. The Audi R8 certainly sounds like a car, but also one-of-a-kind and futuristic. Halbmeir stops the car and with a grin: “Great, it?”

And e-sound for this high-performance sports car is just the Each and every Audi model will have a signature all its own – similar, yes, but one unique. Because an Audi’s is not just any music: it is Vorsprung Technik to one’s ears.

Audi R8 e-tron

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