Alias-free, multiresolution sinusoidal modeling for polyphonic, wideband audio

@article{Levine1997AliasfreeMS,
  title={Alias-free, multiresolution sinusoidal modeling for polyphonic, wideband audio},
  author={Scott N. Levine and Tony S. Verma and Julius O. Smith},
  journal={Proceedings of 1997 Workshop on Applications of Signal Processing to Audio and Acoustics},
  year={1997},
  pages={4 pp.-}
}
We describe an improved method of generating more accurate sinusoidal parameters (amplitude, frequency, phase) from a wideband polyphonic audio source in a multiresolution, non-aliased fashion. This significantly improves upon previous work of sinusoidal modeling that assumes a single-pitched monophonic source, such as speech or an individual musical instrument. In addition to a more general analysis, we can now perform high-quality transformations such as time-stretching and pitch-shifting on… CONTINUE READING

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