Wood, "Synchronous Resonance", Selection Page..
(Modified Last:12/2020
Page WS_08)
By David Langsather, webmaster: www.violinresearch.com
..This can be the final selection tool {If you still have choices left!} , or an ideal method to select accessory pieces, such as fingerboards, tailpieces, nut, saddle, end pin and chin rest. Remember to also shoot for # 22 rub tone on these parts.
..Use the Spruce top plate wood as your S.R. tap reference...
...We will be using just three special tools to discover the "Synchronous Resonance" Tap Tone : >>>>> Just tap on the box below to see <<<<<
..To identity the S.R. Tap tone of a piece of violin wood : Hold it upright and put the tip of you right index finger on the center pencil pad of the top surface and tap once on the surface.
With your left hand tap down in the wood tap reference (range 120 - 620 HZ) at a frequency. Is the spruce tap higher or lower than the reference first tap. Repeat this combination of pairs of taps moving the spruce trapper until the frequency is matched with the S.R. signal tap. This frequency is the S.R. tap tone of the piece of violin wood. (record..)
...The full use of this synchronous resonance frequency is not determined yet, but it shows promise to be useful in matching the wood to be used together in our next instrument!
.. . Click below to be able to print these Data Sheets off for your record keeping :
...Perhaps the most immediate use of this Synchronous Resonance Tool is selecting which wood to mate up to the Spruce Tap Plate wood.
...The technique is to make several taps on your reference piece of wood (usually the top plate spruce wood) and immediately after, tap the part you are considering. If that tap is exactly in Harmony with the reference tap, that part might be a good match (check the other attributes to be sure).
..For instance, when choosing a fingerboard; line up the candidates and tap first the top plate wood and then each of the fingerboards in turn, listening for which one is most in harmony. Same for tuning pegs, tailpieces, bridges, and so on {especially the back plate wood, rib wood, block woods.}.
