Measuring Sustain and Power: was The Steinway Bell Patent

[Mike and Jane Spalding]

Dave,

I've never done this, nor heard of anyone else, but it occurs to me that some combination of a calibrated hammer blow (maybe the tuning stability test blow of 8 oz. dropped from 6 inches?), and one of the ETD's that measure volume and sustain, such as RCT's Pianolizer or TuneLab, might work.  Anyone ever do this?

Mike

----- Original Message ----- 
From: David Love <davidlovepianos@earthlink.net>
To: Pianotech <pianotech@ptg.org>
Sent: Tuesday, September 17, 2002 9:05 AM
Subject: Measuring Sustain and Power: was The Steinway Bell Patent


Do we have a way of accurately quantifying sustain and power?  It would be very helpful for before and after comparisons.

David Love
  Measure in what ways one could before and after the change relavant parameters of sustain and power. 

  -- 
  Richard Brekne 
  RPT, N.P.T.F. 
  UiB, Bergen, Norway 
  mailto:rbrekne@broadpark.no 
  http://home.broadpark.no/~rbrekne/ricmain.html