GM Develops Cutting-Edge Noise-Canceling Sound System

By using either or a combination of these sensors, a new computing system has various ways in which it can mitigate noise intrusion.

In instances where an open window creates a constant frequency noise disruption - like wind noise traveling at a steady speed - the microphone sensors would trigger one of the computing elements toadjust the noise-canceling functionalityof the traditional sound system, emitting a counter-frequency to mitigate the additional noise.

If, however, the light sensor is also triggered, for example, in a case where you remove the targa panels on your C8 Corvette Coupe, then the computer would automatically understand the roof has been opened, and it would combine the noise-canceling frequency with an increase in volume, and potentially an adjustment in the balance and equalizer settings.

Even more versatility is available in the case of vehicles like the2024 Cadillac Lyriq, whoseoptional AKG Studio sound system has headrest speakersthat could be used to counteract noise from an open sunroof.

By using multiple sensors and processor modules instead of just one, GM can hone each sensor to look for specific frequencies and sound levels, and the processors can decide on the best plan of action, sometimes even deciding that no change is needed.

An increase in volume may, for example, result from a semi-truck driving past your car. If the sensors determine there has been no change in the vehicle, then the processors would determine that it is simply a passing noise and make o change to the audio system. Should the noise be prolonged, the system could then adjust accordingly.

It may seem overly complex, but the future of motoring and safety legislation makes tech like this more important.

As EVs become mainstream and engine noise is less of a concern, automakers are adding more sound deadening to vehicles toprevent wind and tire noise from permeating the cabin. Because of this, an open window can vastly change the noise levels within a car, and while a driver may turn up the volume to listen to their favorite songs louder, they may not hear a warning chime from a crash avoidance system.

This new technology takes much of the guesswork out and ensures that safety chimes can always be heard while also making sure you get to enjoy your music, podcasts, or whatever else you like to listen to - we're not judging - to full effect.