prius noise speaker Archives – The Green Optimistic green tech news, since 2008 Tue, 24 Aug 2010 17:47:32 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Prius Breaks Silence With Add-On Noise Generator for Pedestrian Safety https://www.greenoptimistic.com/prius-pedestrian-noise-generator-20100824/ https://www.greenoptimistic.com/prius-pedestrian-noise-generator-20100824/#respond Tue, 24 Aug 2010 17:47:32 +0000 https://www.greenoptimistic.com/?p=9590 I had been glad to hear that you couldn't hear Priuses as they passed by. I even stopped my engine once (I have a diesel) to hear the electric motor's humming - it sounded differently than others, something I had never experienced before. That was in 2007.

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