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Audio Time-Scale Modification Using a Hybrid Time-Frequency Domain Approach
Dorran, David; Coyle, Eugene; Lawlor, Robert
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
Publication Date:
Type: Conference item
Peer-Reviewed: Yes
Institution: Maynooth University
Citation(s): Dorran, David and Coyle, Eugene and Lawlor, Robert (2005) Audio Time-Scale Modification Using a Hybrid Time-Frequency Domain Approach. In: UNSPECIFIED.
Publisher(s): Institute of Electrical and Electronics Engineers
File Format(s): application/pdf
Related Link(s):
First Indexed: 2014-09-21 05:17:27 Last Updated: 2014-09-21 05:17:27