The Role of Vibrato in the Perception of Violin Timbral Quality

Law, Michele Soo Ling (2002) The Role of Vibrato in the Perception of Violin Timbral Quality. Masters thesis, Universiti Putra Malaysia.

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Abstract

This research seeks to verify the assumption that the presence of vibrato assists listeners in "hearing" the resonance structure of a violin, hence facilitating judgments concerning violin timbral quality. Three violins of different costs and presumably different qualities were used. Listening tests were conducted to identify the perceived timbral quality of each violin. To further validate the results, body resonance curves of the violins were analyzed based upon the location and separation of two major resonance peaks. The results obtained were compared with those of previous research findings to confirm the quality of each violin. Spectrum analysis on glissando tones provided data for the plotting of the resonance curves. A pitch and vibrato detection algorithm using interpolated zero crossings was tested for its ability 10 accurately extract the quantifiable parameters of a vibrato. namely its rate and frequency excursion.

Item Type:Thesis (Masters)
Subject:Vibration - Measurement
Subject:Violin - Methods
Chairman Supervisor:Dr. Minni Ang Kim Huai
Call Number:FEM 2002 2
Faculty or Institute:Faculty of Human Ecology
ID Code:8779
Deposited By: Nurul Hayatie Hashim
Deposited On:17 Dec 2010 07:15
Last Modified:17 Dec 2010 07:17

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