Properties and Treatment of Tonewood for String Instrument Construction A Professional Guide

This book delves into the science of wood selection and treatment for optimal suitability in the musical instrument industry. Wood stands out as a prized material for musical instrument construction due to its exceptional acoustic properties. This book explores the intricate link between wood characteristics and sound quality, emphasizing the importance of precise measurements to achieve desired tonal variations. Wood’s inherent ability to resonate and amplify vibrations makes it ideal for crafting instruments. The density, elasticity, sound velocity, damping capacity, and other measurable properties significantly influence the instrument’s tonal character. This book highlights the crucial role of measuring and optimizing specific wood parameters to achieve the desired tonal range. While various wood types offer distinct sonic qualities, not all possess the necessary acoustic properties for instrument making. While factors like wood variety, aesthetic appeal, and durability are also important for instrument selection, this book focuses primarily on the acoustic behavior of wood and its influence on sound production. Wood’s acoustic characteristics, such as density and sound velocity, determine the instrument’s resonance frequency and overall tonal response. Despite advancements in materials science, artificial materials haven’t fully replicated wood's unique acoustic properties. Consequently, wood remains the preferred choice for crafting high-quality musical instruments. Given the scarcity of suitable wood resources, this book explores methods for identifying and enhancing the acoustic properties of more readily available wood types through targeted treatments. This book also envisions the potential development of artificial materials that mimic wood’s measurable acoustic properties, offering new possibilities for instrument construction. This book is specifically tailored for luthiers in the stringed instrument industry. It focuses on acoustic wood science and excludes instrument assembly processes, providing valuable insights for luthiers seeking to craft instruments with exceptional tonal qualities.

Acoustic Behavior vs the Vibrated Strings Concept of Vibration.- Tone Wood Acoustic Identification An Introduction to Mechanical and Acoustic Parameters of Wood.- Components of Wooden Instruments and Their Required Acoustic Characteristics.- Measurement Methods and Devices for Acoustic Parameters.- Tone Wood Acoustic Treatment Introduction  Review of Acoustic and Vibrational Parameters of Wood.- Chemical Wood Treatments.- Non Chemical Wood Treatments.- Sound Color Testing for Treatment Evaluation.

Mehran Roohnia is Professor at the Islamic Azad University, Karaj Branch, Iran, specializing in Wood Science with a focus on acoustics. He concurrently holds a directorate position at Darkoob-NDT, a knowledge-based startup. Having immigrated to Türkiye, he is now affiliated with the Handcraft Arts Association, Konya, Türkiye. Roohnia’s research interests encompass acoustics and vibration, nondestructive testing, timber engineering, tree risk assessment, and solid mechanics. He completed his own Ph.D. thesis, at Islamic Azad University but visited the University of Montpellier II, LMGC, for his experiments under the guidance of his French advisor, focusing on the acoustic properties of wood for musical instruments and he has supervised many postgraduate theses in these areas. Roohnia’s publications since 2010 include contributions to JCR-indexed journals, international conferences, and a book chapter published by Elsevier, alongside original research papers in Persian scientific journals.