Note: This press release is a 1:1 copy of the original issued by BMW headquarters in Germany. No adaptions have been made to cater to the UK market.

Munich. As it pulls back the curtain on a new era in 2025, fuelled by the all-electric Neue Klasse models, BMW is creating a holistic driving and user experience that breaks genuinely new ground. One of the elements of the far-reaching BMW Panoramic iDrive concept is the new HypersonX soundscape. Developed by the BMW Group Sound Design Studio, it comprises 43 sound signals and special driving sounds for Personal Mode and Sport Mode. The multi-dimensional spectrum adapts the sounds precisely to the driving situation at hand and, in so doing, creates an emotional interaction between the driver and their vehicle.

This new stage in the evolution of the automotive sound experience has been made possible by the technological advances in hardware and software brought by the Neue Klasse. The revolutionary BMW Operating System X and a newly developed control unit pave the way for an innovative audio architecture. This allows the overall experience offered by the Neue Klasse to be perfected at an acoustic level, as well as in terms of vehicle character, driving experience and functional range.

A new dimension in drive sounds: distinctive and precisely honed.

“The unique sound spectrum of HypersonX plays a major role in giving a Neue Klasse model its own, highly distinctive character acoustically. Through our focus on precision, warmth and lightness, we can create a direct emotional connection between the driver and their vehicle,” emphasises Renzo Vitale, Creative Director of Sound Design BMW Group. In both Personal Mode and Sport Mode, the drive sounds focus on the essentials and are inspired by tones from nature and structures from the worlds of art and science. HypersonX has fewer basic notes than the sound experience previously employed. But at the same time, the acoustic spectrum has grown to include a new dimensional level. This gives the sound more “colour”, depth and precision, and it embodies more than ever the pleasure of driving for which BMW is renowned.

One of the main elements underpinning this capability is the audio control unit developed for the Neue Klasse, which enables a significant expansion of the dynamic range.

Added to which, the spatial modulation of the drive sound achievable in the Neue Klasse ensures that the vehicle occupants are thoroughly immersed in the soundscape generated by HypersonX. Under acceleration, for example, the vehicle gives the impression of moving between different three-dimensional layers of sound, thus transporting the feeling of speed and BMW-typical driving dynamics authentically into the cabin.

Humanity is a central design element of the welcome sound.

As well as intelligent reduction to the essential elements, the human aspect played an important role in the development of the soundscape for the Neue Klasse. The middle and lower frequency ranges of the BMW HypersonX sound spectrum have been brought to the fore to create a well-balanced acoustic ambience. In conjunction with intuitive operation, precisely adjusted light effects and homely interior design, this gives those on board a fine sense of wellbeing.

A choir made up of BMW Group Design Studio employees brings voice – in their respective native languages – to moments of driving joy, infusing the welcome sound with a particularly empathetic flavour. Carefully isolated elements of these recordings enhance the overall composition of the welcome sound to excellent effect and treat the driver to moments of joy and human warmth.

BMW HypersonX gives the sounds for the Neue Klasse an expressive and distinctive, but also understated and sensitive feel. To this end, more than nine million sound instances based on BMW’s sound DNA were generated using a new algorithm. At the BMW Group Sound Design Studio, these were then filtered into a brand-typical essence that in turn generates a cohesive and multi-dimensional acoustic experience. The result is a sound that creates an emotional connection between human and vehicle in all driving situations and brings a positive, congenial and inviting aura to the acoustic presence of the Neue Klasse.

Note: This press release is a 1:1 copy of the original issued by BMW headquarters in Germany. No adaptions have been made to cater to the UK market.

Munich. The new Aeroacoustics and Electric Drive Center (AEC) starts operations at the BMW Group's Research and Innovation Center (FIZ). After almost forty years, the old aeroacoustic wind tunnel is being replaced by BMW. The building consists of two halves: In addition to a multifunctional part with workshop, testing and measurement equipment and a prototype for high-voltage batteries and inverters, the AEC has a technically and structurally unique wind tunnel. With a length of just under 100 m, a height of 45 m and a width of 25 m, it is the world's largest vertical acoustic wind tunnel and at the same time the quietest.

“Quiet is premium,” says Daniel Böttger, Head of Complete Vehicle Development at BMW AG. “Our focus is on meeting the premium standards of our vehicles. An important part of this is acoustics — particularly for quiet electric models.” The new wind tunnel enables groundbreaking advances in aeroacoustics research.”

“The new AEC is another structural milestone for the BMW Group's development of future mobility solutions,” says Dr. Nicole Haft-Zboril, Head of BMW Group Real Estate Management. “About such a complex project

To be implemented in the shortest possible time, cost-effectively and with very high quality, there is a need for close integration between construction, development and production, as well as with all our partners and the City of Munich. The consistent use of lean construction is an important success factor here. ”

Quiet wind for precise measurements and perfect aerodynamics

With a background noise level (54.3 dB (A) at 140 km/h), which is as low as a quiet conversation or a quiet air conditioning system, the noises caused by headwind on the vehicle can be precisely measured in the new wind tunnel. With a nozzle cross section of 25 m² and a maximum wind speed of 250 km/h, even the largest and most powerful vehicles such as the Rolls-Royce Phantom or the BMW X7 can be examined realistically. This is achieved through a blower capacity of 4.5 MW and up to 100,000 m³ of air per minute at 250 km/h. The wind tunnel is designed as an acoustic semi-free-field space. This means that apart from the sound-resistant floor, there are no sound reflections. This enables a realistic simulation of the situation on the road. The frequency range for semi-free-field conditions from 30 Hz is unique for a vehicle wind tunnel and covers the entire audible spectrum.

Innovative measurement technology, high flexibility and short changeover times

The acoustic wind tunnel is equipped with the latest measurement technology to drive vehicle development forward. A 216-microphone acoustic camera enables precise localization of background noises with an accuracy of less than one centimeter. In addition, the wind tunnel has a laser vibrometry system, which can be used to measure the mechanical vibrations of the entire vehicle surface synchronously and without contact.

The wind tunnel is also ideally equipped to study wind and rolling noises. A full-fledged acoustic all-wheel drive roller dynamometer can be used regardless of wind and weather to analyze the various phenomena. The wind tunnel is designed in such a way that it offers a high degree of flexibility when carrying out measurements.

The wind rolling sound makes it possible to separate the phenomena of rolling and wind from each other (wind on/off, roll on/off). In addition, various modules, such as a vehicle-accessible glass floor or a vehicle scale for motorcycles, can be replaced in a short time without moving the vehicle. This allows developers to test different configurations quickly and efficiently. With this unique combination of performance, precision and flexibility, the new acoustic wind tunnel in Munich sets new standards in vehicle development and opens up new opportunities for optimizing vehicle acoustics and aerodynamics.

In this way, the quietest wind tunnel and the most modern measurement technology can be used to ensure the best aeroacoustics for the Neue Klasse.

Flexibility is also of central importance in construction

The AEC basically consists of two buildings that were built in an excavation pit. Structurally, the special acoustic requirements were met with a special decoupling of the wind tunnel from the second “semi-detached house” and the surrounding area. The entire building, from the 3 m thick floor slab to the façade, is sound-insulated against noises from the surrounding area. The entire construction work was carried out in the outbuildings while development was ongoing. The wind tunnel was designed to be upright so that the building ground is used as efficiently as possible. This was the only way to completely meet all requirements for both buildings and to be implemented on the existing space.

Prototypes for the future of electric mobility: high-voltage batteries and inverters

The second “semi-detached house” of AEC is home to workshops, testing and measurement stands, and prototype lines. Here, the focus is also on electric mobility. The experts from the BMW Group are building and testing prototypes of future high-voltage batteries for electric vehicles here. 15,000 m² are available for this purpose on several floors. On a further area of 800 m², inverters for future electric motors will be manufactured on a pilot line — under clean room conditions. The inverter is a crucial component in an electric motor. His task is, among other things, to convert the direct current from the high-voltage battery into alternating current for use in the electric motor. In order to be flexible in the long term, the spaces in AEC are designed to be “multifunctional”. This means that the company will also be able to respond to various requirements in the future and rebuild the spaces within a short period of time.

Munich.

The future of driving pleasure is electric, locally emission-free – and characterised by a typically BMW sporting flair expressed not only in dynamic talent, but also through an emotionally rich aural experience. BMW IconicSounds Electric brings an unmistakable sound portfolio to BMW models powered by a fully electric or plug-in hybrid drive system. The collaboration between composer and curator Hans Zimmer and Renzo Vitale, Creative Director Sound at the BMW Group, has produced a distinctive driving sound which customers will soon be able to experience in a version developed specially for electric BMW M cars. “Every BMW has its own character, which is reflected in the sound it makes,” says film music creator and Academy Award winner Zimmer. “So for the electrically driven BMW M models we have developed a driving sound which accentuates their emotional driving experience particularly vividly and ensures their performance can be felt with even greater intensity.”

Hans Zimmer had previously been involved in the development of an inspiring ready-to-drive sound for electrically powered BMWs which instils a sense of excitement at the prospect of electric driving when the Start/Stop button is pressed. The latest chapter in this collaboration covers drive sounds for the BMW iX and BMW i4, including a differentiated sound for the M-specification version of the BMW i4.

While the hush of electric driving offers an unprecedented level of comfort, the driving experience loses a degree of emotionality. This is where BMW IconicSounds Electric steps in to put smiles on the faces of customers keen to experience Sheer Driving Pleasure with all the senses. In the future, electric driving pleasure will be enhanced by acoustic feedback to every movement of the accelerator. Like the on-board driving modes selectable at the touch of a button, the driving sound also takes its cues from the driving situation at hand and the driver’s personal preferences. In the basic setting, BMW IconicSounds Electric employs a strikingly transparent timbre with spherical components to convey the basic character of an electrically driven BMW brand model. An immersive and pleasant atmosphere is created initially in the BMW i4 in COMFORT mode. But when the driver steps on the accelerator, the direct relationship between how the car is being driven and the sounds it makes is immediately revealed: the sound experience deepens as load and speed increase. In SPORT mode, in particular, the car’s aural spectrum is more dominant and powerful, the sound providing a constant commentary on the driving situation. Drive system processes are registered within milliseconds and acceleration, load changes or recuperation given a suitable acoustic accompaniment. Only when the vehicle is travelling in ECO PRO mode is the acoustic feedback reduced to nothing. Here, the silence of the drive system underscores the driver’s decision to adopt an ultra-efficient driving style.

In the version developed specifically for electrified BMW M models, the drive sound of the BMW i4 is charged with extra energy. Added to which, the differentiation between COMFORT and SPORT mode is especially strong. Overall, the drive system note displays a less harmonious but engagingly rousing and technical sonic profile. Acceleration sparks a rich intensification of the soundtrack’s development, authentically reflecting the car’s performance character. “When you press the pedal of an M car, you suddenly get goosebumps all over your body,” says sound designer Renzo Vitale. “We translated this feeling into a drive sound that expresses a fusion of superior power and flowing energy.”

Hans Zimmer and Renzo Vitale had already co-developed the driving sound for the BMW Vision M NEXT revealed in 2019 and the BMW Concept i4 presented the following year. Numerous learnings from this creative process have now been channelled into the design of the sound for future series-produced vehicles.

The new drive sounds developed as part of the collaboration with Hans Zimmer are expected to feature in the BMW i4 and BMW iX over the course of 2022. IconicSounds Electric comes as standard in the BMW iX and can be specified as an option for the BMW i4. In cars with earlier build dates, the new sounds can be imported retrospectively via Remote Software Upgrade, should the customer wish. The new spectrum includes one ready-to-drive sound and one stop sound, plus a driving sound which will be made available in the relevant version for BMW models and BMW M cars with electrified drive system.

Munich. The character of the Concept i4 is not only a product of its design, but also of its visionary sound profile. Hans Zimmer composed the sound of the BMW Concept i4 together with BMW sound designer Renzo Vitale under the brand name BMW IconicSounds Electric. BMW IconicSounds Electric will imbue BMW’s electric models with extra emotional depth by connecting the driver with the vehicle’s character on another level through individual tones and sounds.

“Renzo and I were inspired to bring together the past and future of BMW with the sound for the BMW Concept i4,” explains Zimmer. “We hope the sound we created is classic yet surprising and has a feeling of lightness that is fitting for the BMW brand.” The aural repertoire of the BMW Concept i4 stretches from the driving sounds in the Experience Mode “Core” to the more intense tones of “Sport”. Acoustic accompaniments to a door opening and when starting the car are likewise part of its soundscape.

Sound by Hans Zimmer is the starting signal for electric driving pleasure.

Hans Zimmer and Renzo Vitale presented the new start/stop sound in Zimmer’s Santa Monica studio back in November 2019. The ready-to-drive sound for all-electric BMW models and BMW plug-in hybrids will be introduced as a standard feature worldwide from July 2020. “The ability to design the sound in our vehicles makes it possible for us to spark positive emotions,” says Vitale. “The new start/stop sound is intended to instil a sense of excitement at the prospect of electric driving when the customer gets into their vehicle and begins the journey.”

BMW IconicSounds Electric.

The silence of electric drive systems is often cited as a major benefit of electric mobility. As the choice of electrified models increases, however, it also means some drivers are missing out on the emotional appeal of sound. Jens Thiemer, Senior Vice President Customer and Brand BMW: “Sound has always played an important role in the emotionalisation of our vehicles. Now we are taking the joy of sheer driving pleasure to a new level and are particularly pleased to be working with Hans Zimmer to create the new sound world of electric mobility at BMW. This collaboration will result in our forward-looking sound offering for electrified vehicles: BMW IconicSounds Electric.”

The BMW Concept i4 drive sound is the second developed for electric BMW vehicles with Hans Zimmer, following the presentation of the electric sound for the BMW Vision M NEXT at the #NEXTGen event in Munich in June 2019. “We have an extraordinary opportunity to turn electric driving in a BMW into a very special experience with the help of great sounds,” Zimmer commented in 2019. “I am relishing the challenge of co-designing the composition for future electric BMWs.”

Munich. Hans Zimmer is known worldwide for his film music. He has composed countless soundtracks for Hollywood and won numerous awards. Now Hans Zimmer, together with Renzo Vitale, acoustic engineer and sound designer at the BMW Group, has composed the sound for the BMW Vision M NEXT. The Vision M NEXT celebrates its world premiere on June 25^th 2019 at #NEXTGen. Hans Zimmer: “I have always been a BMW enthusiast. As a kid I used to recognise my mother coming home by the sound of her BMW. I am thrilled to get the chance to design the sound of future electric BMW’s and create emotion for the future electric driving experience.”

Hans Zimmer and Renzo Vitale composed the drive sounds and sound signs for the BMW Vision M NEXT together in Zimmer’s studios in London and Los Angeles. Vitale: “We envision sounds that celebrate the beauty and complexity of our vehicles and that are able to move people. I see designing people’s future acoustic environment both as a privilege and as a responsibility. Working on this together with Hans Zimmer is a special honor for me – both as an acoustic engineer and as a musician.”

Kickoff for BMW IconicSounds Electric

The silence of driving electrically is often cited as a major advantage of electric mobility. However, as the range of electrified models increases, a gap in the emotionality of the driving experience arises in the driver's seat. Under the brand name "BMW IconicSounds Electric" a visionary sound offer will be created for future electrified vehicles from BMW. “We want to get BMW IconicSounds Electric in position for customers who value emotional sound. With BMW IconicSounds Electric they will be able to experience the joy of driving with all their senses", said Jens Thiemer, Senior Vice President BMW Brand. The sound of the BMW Vision M NEXT gives a glimpse into the future of BMW IconicSounds Electric.

Sound inspired by art

The BMW Vision M NEXT is a statement for the driver – and so is its sound. When driving electrically, the driver who is used to the familiar sound of a combustion engine experiences the paradigm shift of powertrain technology. For some, this may lead to an alienation between driver and vehicle. The sound of the Vision M NEXT aims to create harmony between the driver and the electrically driven vehicle. This is achieved through the inspiration of art. Vitale: “The development and composition for the sound of the Vision M NEXT was mainly inspired by light installations from James Turrell and Ólafur Elíasson. In particular, Turrell realized works known for the illusion of an infinite space, which creates a magical experience for the spectator. The idea behind the Vision M NEXT is to recreate this sense of wonder through sound.”

Hans Zimmer: “When the driver interacts with the accelerator pedal it is not only a mechanical touchpoint but also a performative element. Accelerating becomes an experience during which the driver moves through a series of gradually morphing sound textures.”

BMW Group has been developing sound for electric mobility for around ten years now

In 2009, with the introduction of the MINI E test fleet, acoustic engineers from the BMW Group were already working on artificially generated sound, which was intended to contribute to the better perceptibility of vehicles with barely audible drivetrains. Since the launch of the BMW i3, customers have therefore been able to choose acoustic pedestrian protection as optional equipment.

The sound of the acoustic pedestrian protection has since been further developed in line with new legislative requirements and is now gradually being rolled out as standard in all plug-in hybrids and all-electric vehicles from BMW (requirements for acoustic pedestrian protection as well as operating times vary worldwide). The aim in the development was to fulfil the important warning function without disturbing pedestrians. At the same time, the customer should continue to enjoy a high level of acoustic comfort in the vehicle.