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Audio Time-Scale Modification Using a Hybrid Time-Frequency Domain Approach
Dorran, David; Coyle, Eugene; Lawlor, Bob
Frequency-domain approaches to audio time-scale modification introduce a reverberant artifact into the time-scaled output due to a loss in phase coherence between subband components. WHilst techniques have been developed which reduce the presence of this artifact, it remains a source of difficulty. A method of time-scaling is presented that reduces the presence of reverberation by taking advantage of some flexibility that exists in the choice of phase required so as to maintain horizontal phase coherence along frequency-domain subband components. The approach makes use of appearling aspects of existing time-domain and requency-domain time-scaling techniques.
Keyword(s): Electronic Engineering; Hybrid Time-Frequency Domain; subband components; reverberation; phase coherence; time-frequency analysis; audio signal processing
Publication Date:
2005
Type: Book chapter
Peer-Reviewed: Yes
Institution: Maynooth University
Citation(s): Dorran, David and Coyle, Eugene and Lawlor, Bob (2005) Audio Time-Scale Modification Using a Hybrid Time-Frequency Domain Approach. In: IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, 2005. IEEE, pp. 289-282. ISBN 0780391543
Publisher(s): IEEE
File Format(s): other
Related Link(s): http://eprints.maynoothuniversity.ie/652/1/Hybrid.pdf
First Indexed: 2014-09-21 05:17:27 Last Updated: 2017-09-13 06:21:59