The paper addresses the problem of modifying the playback speed of audio recordings while maintaining high signal quality and naturalness (i.e. time scaling while preserving frequency domain characteristics). An automatic time-warping method is proposed which is based on a criterion of maximal local similarity between original and time-warped waveforms. Tests on time domain and subband domain representations of audio are discussed and show the practicality of the approach taken.

Authors: Spleesters, Guy; Verhelst, Werner; Wahl, Aron
Affiliations: Bit Wise nv, Grimbergen, Belgium ; Vrije Universiteit Brussel, Brussels, Belgium(See document for exact affiliation information.)
AES Convention: 96 (February 1994) Paper Number: 3843
Publication Date: February 1, 1994
Subject: Recording and Reproduction

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