Microtiming in “ Samba de Roda ” — Preliminary experiments with polyphonic audio

@inproceedings{Porto2007MicrotimingI,
  title={Microtiming in “ Samba de Roda ” — Preliminary experiments with polyphonic audio},
  author={I Porto},
  year={2007}
}
In this paper we report on preliminary experiments in the study of microtiming features in Samba music. Focusing on polyphonic audio music with almost constant tempo, we propose an algorithm to discover from data in a bottom-up manner systematic timing deviations at the 16th-note level in quarternote-long temporal patterns. Our analysis of the data highlights a systematic shift of third and fourth 16thnote beats, slightly ahead of their corresponding quantized positions.