e-sound Coming To An Audi e-tron Near You

Audi created a specific sound it is naming “e-sound” to create awareness in the surroundings of its A8 e-tron model.

The challenge is one many electric cars face. Audi had to make sure pedestrians would hear and notice the presence of the electric A8 close to them.

Audi’s goals for this e-sound was to make sure it would sound like a sports car, but also, a one-of-a-kind and very futuristic sports car.

The e-tron generates its sound by the millisecond using data relating to the electric motor’s rotational speed, vehicle speed, loads, and other parameters. The e-tron then uses this data to generate sound.

A sturdy 40-watt loudspeaker attached to the car’s undercarriage plays the e-sound.

As the vehicle accelerates, the purr turns into a cultivated growl and is inspired by the sound of the company’s V8 engine.

The e-sound was developed in a giant acoustic test bed, a large room used as a laboratory with dense rows of wedges full of glass wool, each three foot in length, projecting from the walls. These wedges absorbed a majority of any sound energy, allowing things to sound almost like they do outdoors.


  • MrEnergyCzar

    The Bladerunner sounds from that movie are still the best… this is pretty close though…

    MrEnergyCzar

  • Paul’sVolt

    Make my Volt sound like a tie fighter and we have a deal

  • Anonymouse Volt

    This is so stupid. It places a burden on electric cars that it does not place on ICE cars. I could have the quietest ICE on the planet and not need this noise maker. Have legislators not heard about the new idea of measuring the volume of a car and requiring ALL cars to meet a minimum sound level? How is discriminating against an EV fair at all?

    It’s a solution in search of a problem, if there were any increase in pedestrian accidents, it would have already happened with Prii prowling parking lots in EV mode.

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  • altonalvin

    ESD can also manage network-transparent audio. As such, an application that supports ESD can output audio over the network, to any connected computer that is running an ESD server. georgehastow.bloghi.com

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