METHOD FOR IMPROVING THE ACOUSTIC PROPERTIES OF SPRUCE RESONANCE WOOD

摘要

The invention relates to a method for improving the acoustic properties of spruce resonance wood for musical instruments. At least one resonance wood blank undergoes a treatment with Physisporinus vitreus under controlled sterile conditions. The previously sterilized resonance wood blank is immersed into a liquid medium enriched with fungus mycelium and held therein in the dark for a working time and finally sterilized. During the working time, a temperature of 18 to 26 °C and a relative humidity of approximately 60% to approximately 80% are set. Because the liquid medium contains nanofibrillated cellulose (NFC) in a quantity of 200 to 300 g per liter, a reproducible, consistent improvement of the acoustic properties of the resonance wood is ensured without local defects.