Improved Time-Scaling of Musical Audio Using Phase Locking at Transients

Duxbury C, Davies M, Sandler MB. Improved Time-Scaling of Musical Audio Using Phase Locking at Transients. In: AES Convention 112. Audio Engineering Society; 2002. Paper 5530. Available from: https://aes.org/publications/elibrary-page/?id=11324

@inproceedings{Duxbury2002_11324,
  author = {Duxbury, Chris and Davies, Mike and Sandler, Mark B.},
  title = {{Improved Time-Scaling of Musical Audio Using Phase Locking at Transients}},
  booktitle = {AES Convention 112},
  note = {Paper 5530},
  year = {2002},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11324}
}

TY  - CPAPER
TI  - Improved Time-Scaling of Musical Audio Using Phase Locking at Transients
AU  - Duxbury, Chris
AU  - Davies, Mike
AU  - Sandler, Mark B.
T2  - AES Convention 112
M1  - Paper 5530
PY  - 2002
DA  - 2002/04/06
UR  - https://aes.org/publications/elibrary-page/?id=11324
PB  - Audio Engineering Society
LA  - en
AB  - We present a method using temporal information of musical audio to considerably improve time-scaling with pitch-preservation. This work builds on a signal model where the original signal is split into transient and steady state components, based on an adaptive multiresolution analysis. By considering only the transient signal content, temporal segmentation is achieved with a much higher degree of accuracy than standard onset detection algorithms. Only the segmented steady state regions are then stretched, whilst phase is locked in the temporally masked regions at transients. Despite local variances in stretching factor, rhythm is maintained globally, yielding perceptually very high quality results for a range of complex polyphonic musical signals, at a low computational cost.
ER  -