Time-scale modification of music using a synchronized subband/time-domain approach

Dorran, David and Lawlor, Bob (2004) Time-scale modification of music using a synchronized subband/time-domain approach. In: IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE, pp. 225-228. ISBN 0780384849

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Time-domain audio time-scaling algorithms are efficient in comparison to their frequency-domain counterparts, but they rely upon the existence of a quasi-periodic signal to produce a high quality output. This requirement makes them unsuitable for direct application to complex multi-pitched signals such as polyphonic music. However, it has been shown that applying time-domain algorithms on a subband basis can resolve this issue. Existing subband/time-domain approaches result in a reverberant/phasy artifact being introduced into the output due to poor synchronization between time-scaled subbands. This paper presents a number of synchronization schemes that greatly reduce the amount of reverberation/phasiness introduced into the time-scaled output by existing subband/time-domain approaches.

Item Type: Book Section
Keywords: synchronisation; audio signal processing; music; time-domain analysis;
Academic Unit: Faculty of Science and Engineering > Electronic Engineering
Item ID: 8827
Identification Number: 10.1109/ICASSP.2004.1326804
Depositing User: Robert Lawlor
Date Deposited: 13 Sep 2017 15:26
Publisher: IEEE
Refereed: Yes

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