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Multi-Channel Audio Time-Scale Modification

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Phase vocoder 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.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=13280

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