Noise cancelling for cars is a no-brainer

We’re all familiar with noise cancelling headphones. I’ve got some that I use for transatlantic trips, and they’re great for minimising any repeating background noise.

Twenty years ago, when I was studying A-Level Physics, I was also building a new PC. I realised that, if I placed a microphone inside the computer case, and fed that into the audio input on the soundcard, I could use software to invert the sound wave and thus virtually eliminate fan noise. It worked a treat.

It doesn’t surprise me, therefore, to find that BOSE, best known for its headphones, are offering car manufacturers something similar with “road noise control”.

With accelerometers, multiple microphones, and algorithms, it’s much more complicated than what I rigged up in my bedroom as a teenager. But the principle remains the same.

Source: The Next Web

Originally posted at Thought Shrapnel on 15 January 2019. Sign up for the free weekly newsletter or find out more about the author at dougbelshaw.com

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