• Nandini Chatterjee Singh

      Articles written in Pramana – Journal of Physics

    • Measuring the `complexity’ of sound

      Nandini Chatterjee Singh

      More Details Abstract Fulltext PDF

      Sounds in the natural environment form an important class of biologically relevant nonstationary signals. We propose a dynamic spectral measure to characterize the spectral dynamics of such non-stationary sound signals and classify them based on rate of change of spectral dynamics. We categorize sounds with slowly varying spectral dynamics as simple and those with rapidly changing spectral dynamics as complex. We propose rate of spectral dynamics as a possible scheme to categorize sounds in the environment.

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