Automatic chord recognition from audio using a supervised HMM trained with audio-from-symbolic data

  • Authors:
  • Kyogu Lee;Malcolm Slaney

  • Affiliations:
  • Stanford University;Yahoo! Research, Sunnyvale, CA

  • Venue:
  • Proceedings of the 1st ACM workshop on Audio and music computing multimedia
  • Year:
  • 2006

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Abstract

A novel approach for obtaining labeled training data is presented to directly estimate the model parameters in a supervised learning algorithm for automatic chord recognition from the raw audio. To this end, harmonic analysis is first performed on symbolic data to generate label files. In paral-lel, we synthesize audio data from the same symbolic data, which are then provided to a machine learning algorithm along with label files to estimate model parameters. Experimental results show higher performance in frame-level chord recognition than the previous approaches.