Forum Acusticum 2026

Session

A11.01 Nonlinear dynamics in musical instruments

A11.01

9 Sept 2026, 16:40

Conveners

A11.01 Nonlinear dynamics in musical instruments: S074

• Rolf Bader (University of Hamburg)

4115. Inverse-Problem solution in musical acoustics using machine-learning analysis of parameter variations of a Dulcken cembalo from 1765 (FA2026/87)

Rolf Bader (University of Hamburg)

09/09/2026, 16:40

A11 Musical Acoustics

Modeling of musical instruments is most often performed in a forward manner, arriving at an analysis or a sound from a chosen geometry and material parameters. But most often, the inverse problem is of more interest: how to build a musical instrument with a desired sound. Using machine-learning methods trained by sounds of physical model outputs when varying a geometrical or material parameter...

4116. Dynamic Regime Changes in the Impulse Pattern Formulation: From Mathematical Analysis to Musical Dynamics and Articulation (FA2026/809)

Simon Linke (Hamburg University of Applied Sciences, ligeti center)

09/09/2026, 17:00

A11 Musical Acoustics

The Impulse Pattern Formulation (IPF) was originally developed as a nonlinear recursive framework for modeling sound generation in musical instruments and was later extended to further topics, including interactions between musicians. In this contribution, the focus is on the performer’s influence on the instrument through dynamically varying control parameters. The IPF describes coupled...

4117. Experimental Study of the Influence of Mouth Cavity Size and Vocal Tract Constriction on the Recorder Sound (FA2026/852)

Naomi Nordblom (University of Hamburg (student))

09/09/2026, 17:20

A11 Musical Acoustics

CFD simulations of flue instruments suggest two mechanisms how the recorder sound could be altered by its player. First, a larger volume of the mouth cavity could be associated with a more stable amplitude (Ikoga et al., 2024) and clearer higher harmonics (Nordblom and Bader, 2026). Second, shear turbulence inside the mouth could weaken the higher harmonics (Nordblom and Bader, 2026).This work...

4118. On the Use of Dynamical Systems Descriptors for the Psychoacoustic Characterization of Playing Techniques in African-Rooted Percussion Instruments (FA2026/869)

Cristhiam Fidel Martínez Orellanos (University of Hamburg)

09/09/2026, 17:40

A11 Musical Acoustics

Playing techniques from African-rooted percussion instruments focus on exploring the range of sounds produced by striking different parts of the membrane with different parts of the hitting hand. This creates a sonic palette through which culture-defining rhythms are performed. However, the perceptual descriptions found in the literature are usually limited to language metaphors with no clear...