Renault details development of interior sound profile

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Drivers hear a range of sounds on every journey, from indicators and parking sensors to seatbelt warnings. They might seem insignificant but they’re the result of rigorous work. In a new video, William Rodriguez, experience manager at Renault Design, explains the challenges and the creative process behind the development of interior sounds in Renault vehicles.

As Renault notes, not only are these sounds important for the driver, who must understand what they mean, but also for the brand, which can reinforce its identity via these features. Rodriguez notes, “The car is an instrument that has to be tuned. It produces abstract sounds that need to be understood. We’re not making music, we’re communicating messages with an intentional aesthetic while complying with and reinforcing the brand’s DNA.”

Work on sound design inside the cabin focuses on three major sound groups. Regulatory sounds advise or warn, such as the indicators and the seatbelt warning. Driving aid sounds are features such as the parking sensors and lane departure warning. Finally, multimedia sounds respond to actions performed on the central screen.

Rodriguez observes that there are several reasons why it is important to formulate a sound design strategy. It provides a unique user experience, finding the ideal balance between sound and other visual or haptic stimuli. The sounds must be pleasant for the user while sending the right messages to inform, confirm, warn or alert. Drivers must be able to instinctively interpret them and adapt their behavior accordingly.

A particular strategy must also create a sound environment that’s specific to the Renault brand. The sound elements that enliven the passenger compartments and screens in vehicles all help to reinforce the brand identity, in the same way that a light signature or an advertising slogan does. The aim is to inspire emotions by providing a finely tuned and enjoyable driving experience.

“We’ve paid special attention to the iconic nature of sounds to create a true Renault sound identity. In terms of artistic direction, we wanted Renault sounds to be consistent with the brand identity: meaningful, caring, positive and fun,” says Rodriguez.

The user experience department at Renault Design is currently working on a new generation of in-car sounds for production vehicles. As with a classic industrial design process, work on sound design is carried out with sketches created for each sound, in line with the overall artistic direction and the type of message to be conveyed.

To create attractive sounds, nature very quickly became the main source of inspiration. “We worked with a palette of sounds inspired by nature: pieces of wood rubbing together, percussive sounds, seeds pouring, drops of water,” explains Rodriguez.

From here, these sound materials are stylized and mixed using sound processing software, then tested on target users who share their perceptions. This is important, as users may judge a sound to be too ‘dark’ or too ‘sharp’, too ‘plastic’ or too ‘musical’.

Depending on this feedback, the sounds are then reworked, sculpted, contoured or trimmed, while ensuring they match the overall strategy, in close collaboration with other departments such as product, engineering and marketing.

The manufacturer says the total makeover of sound design for future Renault vehicles is close to completion and the result will be heard in models launching in 2022.

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, web editor

Lawrence has been covering engineering subjects – with a focus on motorsport technology – since 2007 and has edited and contributed to a variety of international titles. Currently, he is responsible for content across UKI Media & Events' portfolio of websites while also writing for the company's print titles.

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