Time-frequency or time-scale representation fission and fusion rules
Abstract
Time-frequency representations are important for the analysis of time series. We have developed an online time-series analysis system and equipped it to reliably handle re-alignment in the time-frequency plane. The system can deal with issues like invalid regions in time-frequency representations and discontinuities in data transmissions, making it suitable for on-line processing in real-world situations. In retrospect the whole problem can be considered to be a generalization of ideas present in overlap-and-add filtering, but then for time-frequency representations and including the calculation of non-causal features. Here we present our design for time-frequency representation fission and fusion rules. We present these rules in the context of two typical use cases, which facilitate understanding of the underlying choices.
Cite
@article{arxiv.1705.05874,
title = {Time-frequency or time-scale representation fission and fusion rules},
author = {Coen Jonker and Arryon D. Tijsma and Ronald A. J. van Elburg},
journal= {arXiv preprint arXiv:1705.05874},
year = {2017}
}
Comments
This paper is accompanying the release of libSoundAnnotator. The whole implementation is open sourced through GitHub: https://github.com/soundappraisal/libsoundannotator under the Apache License, Version 2.0. Both UseCases described are available as documented code through GitHub https://github.com/soundappraisal/soundannotatordemo under the Apache License, Version 2.0. 11 pages, 5 figures