A generalized acoustic analogy

Generalized acoustic energy density.

The properties of acoustic kinetic energy density and total energy density of sound fields in lightly damped enclosures have been explored thoroughly in the literature. Their increased spatial uniformity makes them more favorable measurement quantities for various applications than acoustic potential energy density (or squared pressure), which is most often used. In this paper, a generalized ac...

Computational Creativity by Structural Analogy between Acoustic Bayesian Models

We present a method for generative modeling of audio content that performs mappings between minimum entropy hidden Markov models learnt from audio data. By training with a minimum entropy prior, compact, low-complexity models of the latent structure in audio source samples are obtained. Synthesis of new audio content is achieved by mapping the state sequence of a nominated structure model onto ...

An Operational Approach to the Acoustic Analogy Equations

The Acoustic Analogy and Alternative Theories for Jet Noise Prediction

This paper describes several methods for the prediction of jet noise. All but one of the noise prediction schemes are based on Lighthill's or Lilley's acoustic analogy while the other is the jet noise generation model recently proposed by Tam and Auriault.1 In all the approaches some assumptions must be made concerning the statistical properties of the turbulent sources. In each case the charac...

Validation of acoustic-analogy predictions for sound radiated by turbulence