Enjoy the silence... or the science behind it! Our custom front-array system for the acoustic wind tunnel is designed to capture only the wind noise generated by the airflow around the car. The setup features 216 microphones, covering a frequency range from 500 Hz to 10,000 Hz, along with a 4K camera. With our NoiseImage software, we can zoom in both visually and acoustically to gather the most detailed and precise data possible. 🌬️🚗 If you look closely at 00:28, you’ll notice a person in the corner holding a special fog device for wind tunnels. This technique is used to visualize the airflow above the car, while our #AcousticCamera color-codes the noise into an acoustic map, allowing BMW´s aeroacoustics engineers to pinpoint the exact source of the sound. In addition to the front-array system, a conveniently movable microphone array can be positioned to the left or right side. The system ensures time-synchronized recording of the complete vehicle's exterior noise in a single measurement. This helps to reduce both measurement and analysis time. A special thank you to the colleagues at BMW Group, with whom we had the pleasure of collaborating on this project. We are extremely grateful for their trust and are proud to be a part of it! 🤝 👏 Take a look at the acoustic wind tunnel in action! 👇👇👇📽️ You can also explore more of our wind tunnel projects on our website: https://lnkd.in/gbsdWEKN #WindTunnelTech #NoiseMapping #AcousticAnalysis #EngineeringInnovation #BMWGroup #PerformanceTesting #SmartTech #AcousticVisualization #NoiseImage #Audiomotive #WindTunnelTesting #NoiseAnalysis #SoundAnalysis
The sound of silence 🔊🧏 We need a quiet wind in our new acoustic wind tunnel to be able to hear and measure only the wind noise, which is generated by the flow around the car. With just 54,3 dB(A) at a wind speed of 140 km/h, it is the quietest of its kind - just as loud as a normal conversation. More info 👉🏻 https://b.mw/wind #BMWGroup #innovation
