Histogram of gradients of Time-Frequency Representations for Audio scene detection

  title={Histogram of gradients of Time-Frequency Representations for Audio scene detection},
  author={Alain Rakotomamonjy and Gilles Gasso},
This paper addresses the problem of audio scenes classification and contributes to the state of the art by proposing a novel feature. We build this feature by considering histogram of gradients (HOG) of an audio scene time-frequency representation. Contrarily to classical audio features like MFCC, we make the hypothesis that histograms of gradients are able to encode some relevant informations in a time-frequency representation: namely, the local direction of variation (in time and frequency… CONTINUE READING
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