Optimizing the Soundboard – Refining the Heart of the Sound

Heinz Letuha, lecturer in piano making at the University of Music and Performing Arts Vienna, Institute for Keyboard Instruments, opens the seminar. His primary goal is to promote the exchange of knowledge and expertise within European associations.

What distinguishes an average soundboard from an exceptional one? As part of Akustika 2026, Josias Sigrist (owner of Piano Sigrist and a second-generation piano maker) invites you to an exclusive 90-minute workshop.

In this compact session, you will learn how targeted optimization of the soundboard unlocks the full sonic potential of an instrument. Based on his experience, Josias Sigrist provides practical insights into:

- Analysis & Measurement: How to objectively assess the quality of a soundboard using thickness measurement and the Chladni test (acoustic vibration test).

- Targeted Machining: The art of milling and tapering to create a resonant bass and a firm treble.

- Fine-Tuning: The synergy between the hammer head and the soundboard.

Experience firsthand, through concrete examples from renowned manufacturers (such as Steinway, Grotrian or Bechstein), how craftsmanship and modern measuring methods form the common thread for perfect sound design.

CV Heinz Letuha: https://www.dieklaviermachermeister.at/ueber-uns/team/
CV Josias Sigrist: https://www.pianosigrist.ch/events-news/steckbrief-josias-sigrist/