Time-scale modification using fuzzy epoch-synchronous overlap-add (FESOLA)

Paper

Roberts, Timothy and Paliwal, Kuldip K.. 2019. "Time-scale modification using fuzzy epoch-synchronous overlap-add (FESOLA)." 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA). New Paltz, United States 20 - 23 Oct 2019 United States. IEEE (Institute of Electrical and Electronics Engineers). https://doi.org/10.1109/waspaa.2019.8937258

Paper/Presentation Title	Time-scale modification using fuzzy epoch-synchronous overlap-add (FESOLA)
Presentation Type	Paper
Authors	Roberts, Timothy and Paliwal, Kuldip K.
Journal or Proceedings Title	Proceedings of 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA)
Number of Pages	31-34
Year	2019
Publisher	IEEE (Institute of Electrical and Electronics Engineers)
Place of Publication	United States
ISBN	9781728111230
Digital Object Identifier (DOI)	https://doi.org/10.1109/waspaa.2019.8937258
Web Address (URL) of Paper	https://ieeexplore.ieee.org/document/8937258
Web Address (URL) of Conference Proceedings	https://ieeexplore.ieee.org/xpl/conhome/8932990/proceeding
Conference/Event	2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA)
Event Details	2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) Parent IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) Delivery In person Event Date 20 to end of 23 Oct 2019 Event Location New Paltz, United States
Abstract	A modification to the Epoch-Synchronous Overlap-Add (ESOLA) Time-Scale Modification (TSM) algorithm is proposed in this paper. The proposed method, Fuzzy Epoch-Synchronous Overlap-Add, improves on the previous ESOLA method through the use of cross-correlation to align time-smeared epochs before overlap-adding. This reduces distortion and artefacts while the speaker’s fundamental frequency is stable, as well as reducing artefacts during pitch modulation. The proposed method is tested against well known TSM algorithms. It is preferred over ESOLA, and gives similar performance to other TSM algorithms for voice signals. It is also shown that this algorithm can work effectively with solo instrument signals containing strong fundamental frequencies. Full implementation of the proposed method and zero frequency resonator can be found at github.com/zygurt/TSM.
Contains Sensitive Content	Does not contain sensitive content
ANZSRC Field of Research 2020	400607. Signal processing
Public Notes	The accessible file is the accepted version of the paper. Please refer to the URL for the published version.
Byline Affiliations	Griffith University

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