Electric leaf blowers are already far quieter than their gas-powered peers, but they still aren’t the kind of thing you’d like to hear first-thing on a Saturday morning. Looking to impr…
  • tty5@lemmy.worldEnglish
    614·
    2 年前

    Decibel scale is logarithmic, which means 10db change is reducing perceived volume by half.

    • wewbull@feddit.ukEnglish
      49·
      2 年前

      No. It means the sound energy is dropped by half. Our audio perception is also logarithmic however. It’s why we use db.

      • tty5@lemmy.worldEnglish
        111·
        2 年前

        Almost. a 10db change is a 10x difference in power and roughly 2x difference in perceived loudness