Stereo time-scale modification using sum and difference transformation
Paper
Paper/Presentation Title | Stereo time-scale modification using sum and difference transformation |
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Presentation Type | Paper |
Authors | Roberts, Timothy and Paliwal, Kuldip K. |
Journal or Proceedings Title | Proceedings of 2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS) |
Number of Pages | 5 |
Year | 2019 |
Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
Place of Publication | Australia |
ISBN | 9781538656020 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/ICSPCS.2018.8631776 |
Web Address (URL) of Paper | https://ieeexplore.ieee.org/document/8631776 |
Web Address (URL) of Conference Proceedings | https://ieeexplore.ieee.org/xpl/conhome/8624190/proceeding |
Conference/Event | 2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS 2018) |
Event Details | 2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS 2018) Parent International Conference on Signal Processing and Communication Systems Delivery In person Event Date 17 to end of 19 Dec 2018 Event Location Cairns, Australia |
Abstract | The phase relationship between channels should be maintained when processing multiple channel signals with Time-Scale Modification (TSM). This paper proposes a method and additional variant for maintaining the phase relationship between channels, and retaining the presence in the centre of the stereo signal as a result. The method involves pre- and postprocessing the file with the variant processing each frame for real-time suitability. Sum and difference transforms of the stereo signal are used for time-scale modification and results in a large improvement in stereo phase coherence as well as maintaining the stereo field. The proposed method produces a high quality stereo output and greatly improves quality over the independent channel processing method. It also allows for simple implementation, and can be implemented around existing TSM frameworks. The proposed method and variant are suitable for both frequency and time domain TSM methods. Availability: All source code, figures, and source audio files can be found at github.com/zygurt/TSM/. |
Keywords | time-scale modification; stereo; sum; difference; phase vocoder; mid-side; coherence; balance; 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 |
https://research.usq.edu.au/item/zz139/stereo-time-scale-modification-using-sum-and-difference-transformation
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