Non-Cylindrical Acoustic Tubes

In many situations, the wave impedance of the medium varies in a continuous manner rather than in discrete steps. This occurs, for example, in conical bores and flaring horns. In this section, built upon [446], we will consider non-cylindrical acoustic tubes.

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Subsections

• Horns as Waveguides
• Conical Acoustic Tubes
  • Digital Simulation
  • Generalized Scattering Coefficients
  
  
• Cylinder with Conical Cap
  • Scattering Filters at the Cylinder-Cone Junction
  • Reflectance of the Conical Cap
  • Stability Proof
  • Reflectance Magnitude
  • Poles at

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written by Julius Orion Smith III
Julius Smith's background is in electrical engineering (BS Rice 1975, PhD Stanford 1983). He is presently Professor of Music and Associate Professor (by courtesy) of Electrical Engineering at Stanford's Center for Computer Research in Music and Acoustics (CCRMA), teaching courses and pursuing research related to signal processing applied to music and audio systems. See http://ccrma.stanford.edu/~jos/ for details.