• Measuring the `complexity’ of sound

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/077/05/0811-0816

    • Keywords

       

      Auditory; spectral dynamics; non-stationary; time–frequency.

    • Abstract

       

      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.

    • Author Affiliations

       

      Nandini Chatterjee Singh1

      1. National Brain Research Centre, NH-8, Nainwal Mode, Manesar 122 050, India
    • Dates

       
  • Pramana – Journal of Physics | News

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