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COMPARATIVE ANALYSIS OF BELL SOUNDS FROM SEVERAL ROMANIAN ORTHODOX MONASTERIES AND CHURCHES

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Author(s): C. OANCEA | CONSTANTIN GHEORGHIES | SIMONA CONDURACHE-BOTA

Journal: Journal of Science and Arts
ISSN 1844-9581

Volume: 12;
Issue: 1;
Start page: 199;
Date: 2010;
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Keywords: church bell | partials | frequency | amplitude | sound intensity

ABSTRACT
Church bells are particular musical instruments, whose sound perception, known as pitch, is more complex than of those instruments belonging to a classic orchestra. Bells’ design and specific proportion of materials used for casting them make each bell unique in its resulting acoustics. This article presents a comparative analysis of the sounds emitted by 5 ringing bells from 5 different Romanian monasteries and churches, by means of complex sound analysis programs, called Wanaval and Sigview, respectively. The spectrograms of the recorded bells ringing are displayed. The partial frequencies were identified and subsequently both simple and multiple correlations were performed between the following sound parameters: frequency, amplitude and intensity. The data were also statistically analyzed, by calculating the average, minimum and maximum values and the standard deviation, respectively. Even though all the analyzed bells have similar size, weight and even wall thickness, their musical characteristics are clearly different one from another, proving the uniqueness of each church bell.
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