Polyphonic Audio Key Finding Using the Spiral Array CEG Algorithm

@article{Chuan2005PolyphonicAK,
  title={Polyphonic Audio Key Finding Using the Spiral Array CEG Algorithm},
  author={Ching-Hua Chuan and Elaine Chew},
  journal={2005 IEEE International Conference on Multimedia and Expo},
  year={2005},
  pages={21-24}
}
Key finding is an integral step in content-based music indexing and retrieval. In this paper, we present an O(n) real-time algorithm for determining key from polyphonic audio. We use the standard Fast Fourier Transform with a local maximum detection scheme to extract pitches and pitch strengths from polyphonic audio. Next, we use Chew's Spiral Array Center… CONTINUE READING

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