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Open AccessArticle

Sound Characterization through Intensity of Acoustic Radiation Measurement: A Study of Persian Musical Instruments

1
Department of Architecture, University of Bologna, Via dell’Università 50, 47521 Cesena, Italy
2
Faculty of Engineering and Physical Sciences, University of Southampton, Highfields, Southampton SO17 1BJ, UK
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(2), 633; https://doi.org/10.3390/app10020633
Received: 9 August 2019 / Revised: 30 December 2019 / Accepted: 3 January 2020 / Published: 16 January 2020
(This article belongs to the Special Issue Musical Instruments: Acoustics and Vibration)
The physics of musical instruments often uses modal analysis as one of the most important methods for describing the behavior of sound chests and their acoustic radiation. However, some studies conducted in Europe (Wogram), Japan (Suzuki) and the United States (Giordano) underlined a very weak correlation between sound radiation and modal analysis. This mismatch required further research. The acoustic parameter intensity of acoustic radiation (IAR) is highly related to the mechanical vibration of the sound source. IAR was able to quantify the sound efficiency of musical instruments, and to relate sound radiation with modal analysis. This paper investigates IAR measured on three Persian stringed musical Instruments, namely the thar, si-thar and santoor. The analysis contributes to the knowledge of stringed musical instruments and sound propagation, since IAR is capable of linking the mechanical vibrations of soundboards with the sound generation of the musical instruments. The IAR results coming from the modal analysis carried out during the study of the instruments are reported herein. View Full-Text
Keywords: intensity of acoustic radiation; modal analysis; Persian musical instruments intensity of acoustic radiation; modal analysis; Persian musical instruments
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Tronchin, L.; Manfren, M.; Vodola, V. Sound Characterization through Intensity of Acoustic Radiation Measurement: A Study of Persian Musical Instruments. Appl. Sci. 2020, 10, 633.

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