This paper presents a novel technique for time-scale modification (TSM) which integrates time-domain and frequency-domain processing. The method relies on frame-by-frame classification to choose between different techniques adapted to different signal types. Provisions are taken to seamlessly switch between techniques. The result is a more universal TSM algorithm that yields continuous high quality results on a wider range of audio signals. The method is tested on mixed-content signals and formal listening tests results are discussed.

Authors: Gournay, Philippe; Lefebvre, Roch; Savard, Patrick-André
Affiliation: Université de Sherbrooke
AES Convention: 122 (May 2007) Paper Number: 7133
Publication Date: May 1, 2007
Subject: Analysis and Synthesis of Sound

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