More on hearing protection

pianotune05 pianotune05 at comcast.net
Fri Jun 9 18:49:50 MDT 2006


John,
Do you know if this is a nationally known method?  Maybe someone could demonstrate this at various chapters and conventions.
Marshall
  ----- Original Message ----- 
  From: John M. Formsma 
  To: 'Pianotech List' 
  Sent: Friday, June 09, 2006 7:00 PM
  Subject: RE: More on hearing protection


  OK, tune very softly - just loud enough to hear whatever you're listening for when you tune. With the hammer shank in the same hand as your lever, set the pin and the string with the lever where you think it won't move. Then take the shank and slightly deflect the string. Obviously, you don't want to be Arnold Schwarzenegger here - enough to see a bit more deflection than you think you might get with your severest blows. Experiment - it's doubtful you will damage anything with a hammer shank. Then check for pitch change. If it's changed, you didn't set the string well enough or didn't deflect the string enough. Repeat until there is no pitch change. Then, to verify this works, get adequate ear protection and beat the stuffing out of the string.

   

  That's about as good as I can think to describe it.

   

  Experiment.enjoy!  ;-)

   

  John Formsma

   


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  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Jason Kanter
  Sent: Friday, June 09, 2006 6:35 PM
  To: 'Pianotech List'
  Subject: RE: More on hearing protection

   

  I'll give it a shot. You say that instead of a hard test blow, you deflect the string with a stick. How, where, what is the sequence?

   


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  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of John M. Formsma
  Sent: Friday, June 09, 2006 3:16 PM
  To: 'Pianotech List'
  Subject: RE: More on hearing protection

  Andrew,

   

  I'm not exactly sure just what you're asking.  Maybe say it a different way?  Sorry to be dense.

   

  John Formsma

   


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  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Andrew and Rebeca Anderson
  Sent: Friday, June 09, 2006 2:14 PM
  To: Pianotech List
  Subject: RE: More on hearing protection

   

  John,
  I'm one of this thumper grasped in my fist test-blowing tuners.  I've always thought there's got to be a better way but haven't got the stability I want without it.  How does it work (mechanically) in practice to play and then test?

  Andrew

  At 08:25 PM 6/8/2006, you wrote:

  Geoff,
   
  I just learned a new thing to allow one to tune a piano at pianissimo levels. *(Courtesy of Leonard Gustafson, RPT, of the Memphis PTG chapter, who picked it up from a Steinway tech doing a technical at one of our chapter meetings.)
   
  Anyway, you use a vertical hammer shank (or something similar) to slightly deflect the string after its tuned. The idea is that a hard test blow will show any string movement (from deflection by the hammer). A deflection by a hammer shank will also do this, but at a greater level than the severest test blow ever could. I used this yesterday on the four pianos I tuned (2 verts & 2 grands), and it worked very well, although its slow at first b/c its a new skill. I gave one string ten whacks as hard as I could, and nothing moved in the slightest. I also did a few hard blows in various sections to ensure that it works everywhere. Im very glad to know of this as my playing/test blow elbow has been sore lately.
   
  The only downside I can see is that it might take a bit longer at first. (Leonard tunes in 45min to 1 hour, so it hasnt slowed him down.) The positives are that we wont have hearing loss from hard test blows, and body damage is also greatly reduced. Ill gladly trade test blows for a few more years of hearing and less pain.
   
  John Formsma
   
   


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  From: pianotech-bounces at ptg.org [ mailto:pianotech-bounces at ptg.org] On Behalf Of Geoff Sykes
  Sent: Thursday, June 08, 2006 2:00 AM
  To: Pianotech at Ptg. Org
  Subject: More on hearing protection
   
  With the "Noise-Induced Hearing Loss, Part 2" article in the Q&A section of The Journal, I'd like to hear from some fellow tech's who have tried the Zem earplugs, by Sensgard. They're ugly, but the technology is such a different approach than just a simple "plug" that perhaps they could be very useful. I have been using 32db foam Hearos, but I find that while the foam is comfortable I get a lot of attenuation variation from one set to the next, and they're not that flat in response. I also have a pair of Etymotic High Fidelity Earplugs, (identical to the Hearos High Fidelity Ear Filters), which work great. My only complaints are that they're not that long term comfortable and that since the frequency response is much flatter, the attenuation, (rated at 20db), is perhaps a little too much. Zem claims 32db reduction. 
   
  -- Geoff Sykes
  -- Assoc. Los Angeles

   
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