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Electrical and electronic engineering
Phase vecoder based approaches to audio time-scale modification introduce a reverberant artefact into the time scaled output. Recent techniques have been developed to reduce the presence of this artefact; however, these techniques have the effect of introducing additional issues relating to their application to multi-channel recordings. This paper addresses these issues by collectively analysing all channels prior to time-scaling each individual channel.
Dorran, D., Lawlor, R. & Coyle E. (2005) Multi-channel audio time-scale modification. 119th. Audio Engineering Society Convention, New York, October 7-10, 2005.