• Posts
  • RSS
  • ◂◂RSS
  • Contact

  • Quiet Pennywhistle

    February 11th, 2014
    music, pennywhistle  [html]
    A while ago I posted that I had made a very quiet pennywhistle. Today I was thinking more about such things, in the context of what instruments to give to small children [1], and dug up this whistle:

    normal whistle, then quiet whistle

    You can hear it's much quieter than a typical whistle. Comparing it with my Generation and measuring SPL [2] I get:

    Low D Low G High D High G High B
    Generation 52 53 59 66 64
    Quiet 35 38 45 57 52

    (Compare to some other methods, but note that our measured numbers are in very different ranges.)

    The basic idea is to make the hole in the fipple much smaller than usual, and make the holes smaller as well. Ideally it would also be a smaller diameter, but that's the size of PVC tubing I could get.


    [1] It's not actually a very good fit for that purpose. It requires very careful breath control to make any noise at all, so someone who didn't already play whistles would probably get frustrated and bored without figuring it out.

    [2] SPL in dB at one meter measured with Sound Meter Lite on a Moto X, uncalibrated. Background noise registered 33dB, which means the low notes on the quiet whistle were barely loud enough to register and so are likely inaccurate.

    Comment via: google plus, facebook

    Recent posts on blogs I like:

    Austerity is Inefficient

    Working on an emergency timetable for regional rail has made it clear how an environment of austerity requires tradeoffs that reduce efficiency. I already talked about how the Swiss electronics before concrete slogan is not about not spending money but ab…

    via Pedestrian Observations February 27, 2021

    Fireside Friday, February 26, 2021

    Fireside this week, but next week we are diving into our long awaited series on pre-modern textile production, though we will be particularly focused on the most important clothing fibers in the Mediterranean world, wool and linen (rather than, say, silk …

    via A Collection of Unmitigated Pedantry February 26, 2021

    The Troubling Ethics of Writing (A Speech from Ancient Sumer)

    (Translated from a transcript of an ancient Sumerian speech by Uruk's most well-respected Scriptological Ethicist) Writing is a profoundly dangerous technology: Access to writing was initially, and still remains, uneven. What's worse, the rich are m…

    via BLOG - Cullen O'Keefe February 15, 2021

    more     (via openring)


  • Posts
  • RSS
  • ◂◂RSS
  • Contact