A method to improve the acoustic properties of spruce resonant wood

摘要

In a method for improving the acoustic properties of spruce resonant wood for musical instruments, at least one resonant wood blank is subjected to treatment with Fisysporinus vitreus under controlled sterilization conditions. A pre-sterilized resonant wood blank is immersed in a liquid medium rich in fungal mycelium, stored in the dark as it is during the exposure time, and finally sterilized, at a temperature of 18-26 ° C. during the exposure time and A relative humidity of about 60 to about 80% is maintained. The liquid medium containing nanofibrillated cellulose (NFC) in an amount of 200-300 g per liter ensures a reproducible and uniform improvement of the acoustic properties of the resonant wood without local defects.