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Convention Paper

Vibrato Detection Using Cross Correlation Between Temporal Energy and Fundamental Frequency

Authors: von Coler, Henrik; Röbel, Axel

AES Convention 131 · Paper 8476 · October 2011

Abstract

In this work we present an approach for detecting quasi periodic frequency

modulations (vibrato) in monophonic instrument recordings. Since a frequency

modulation in physical instruments usually causes an amplitude modulation,

our method is based on a block wise cross correlation between the extracted

frequency- and amplitude modulation trajectories. These trajectories are ob-

tained by removing the constant components. The resulting cross correlation

curve shows significant positive peaks at vibrato regions and local minima at

note boundaries. Our approach has the advantage of working without a previ-

ous note boundary detection and needs only a small look ahead. Furthermore

no presumptions on vibrato parameters have to be made.

Details

Published in
AES Convention 131
AES Convention
131
Paper number
8476
Publication date
October 6, 2011
Session subject
Audio Processing
Affiliation
IRCAM, Paris, France; Technische Universität Berlin, Audio Communication Group, Berlin, Germany (See document for exact affiliation information.)
Type
Convention Paper