This paper introduces the analysis and synthesis of vibrato in music audio. The analyzer separates frequency modulators from their carriers using a demodulation process. It then describes the frequency variations of a vibrato using a period-synchronized parameter set, and the accompanying amplitude variations using a source-filter model, both of which can be regarded slow-varying. The synthesizer, on the other hand, reconstructs a vibrato from a given set of parameters. Using this system we are able to retrieve specific characteristics of vibratos, or modify them to implement various audio effects.
Authors:
Sandler, Mark; Wen, Xue
Affiliation:
Queen Mary, University of London
AES Convention:
124 (May 2008)
Paper Number:
7425
Publication Date:
May 1, 2008
Subject:
Analysis and Synthesis of Sound
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