Acoustical classification of woods for string instruments
(Color online) Cross-sectional schematics of typical structures of stringed instruments. (a) Box–sound-hole structure in the guitar, harpsichord, Cristofori’s fortepiano, etc.. (b) Box–sound-hole–sound-post structure in the violin family (the sound post is depicted by a darker gray rectangle in the middle). (c) Soundboard—iron-frame structure in modern pianos. A white rectangle indicates top plate or soundboard; a black or gray rectangle indicates back (and side) plate or frame board.
Acoustical classification of traditional woods best suited for stringed instruments. The regression line for soundboards (full circles) is almost orthogonal to the regression line for frame boards (open circles). Note the position of mulberry, which is used for the top and back plates of the Japanese Satsuma biwa.
A scatter diagram of substitute woods for stringed instruments. The regression lines given in Fig. 2 are drawn as the reference. The closer to the regression line that a proposed substitute material lies, the better its performance. Full circles indicate soundboard woods and open circles frame-board woods. Crosses show the positions of various substitutes used for mulberry, which is used for the best-quality Satsuma biwa.
Common names and botanical names of woods investigated in this paper.
Physical properties of traditional woods best suited for stringed instruments.
Physical properties of substitute woods for stringed instruments.
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