Comment on Transport noise linked to increased risk of dementia, study findsparentComments−viktorcode4yThat is incorrect. In different measurements the noise level was the same at higher speeds, while being much lower for EV at urban driving speeds.One example: https://www.toi.no/getfile.php/1340825-1434373783/mmarkiv/Fo...−79524yAnd probably lower variance in noise compared to ice cars which are sometimes designed or modified to have excess noise as a feature.−kmlx4yis 2-4db reduction under 30km/h “much lower”?−nitrogen4y3dB lower is 50% less power. It's a small perceptual difference, but a fairly sizable difference in absolute terms.
Comments
That is incorrect. In different measurements the noise level was the same at higher speeds, while being much lower for EV at urban driving speeds.
One example: https://www.toi.no/getfile.php/1340825-1434373783/mmarkiv/Fo...
And probably lower variance in noise compared to ice cars which are sometimes designed or modified to have excess noise as a feature.
is 2-4db reduction under 30km/h “much lower”?
3dB lower is 50% less power. It's a small perceptual difference, but a fairly sizable difference in absolute terms.