Real-time synthesis of clarinet-like instruments using digital impedance models

Area of Science:

• Acoustics
• Computer Music
• Digital Signal Processing

Background:

• Traditional wind instrument sound synthesis often relies on complex wave variable representations.
• Existing models may not offer a direct digital transposition of underlying physical principles.

Purpose of the Study:

• To present a real-time synthesis model for wind instrument sounds based on a classical physical model.
• To develop a digital transposition of the physical model using sampled physical variables.

Main Methods:

• The physical model incorporates nonlinear coupling between resonator and exciter via the Bernoulli equation.
• The synthesis model utilizes sampled physical variables throughout the process, avoiding wave variables.
• An explicit resolution scheme (synthesis algorithm) is employed, with analytically expressed parameters.

Main Results:

• A straightforward digital transposition of the physical model was achieved.
• The synthesis model operates in real-time.
• Algorithm parameters are analytically derived from physical and control parameters.

Conclusions:

• The presented model offers an efficient and direct method for real-time wind instrument sound synthesis.
• This approach simplifies the digital implementation of physical acoustic models.
• The analytical parameterization allows for intuitive control over synthesized sounds.