Further Investigations in the Emulation of Nonlinear Systems with Volterra Series

Tronchin, Lamberto; Coli, Vanna Lisa

doi:10.17743/jaes.2015.0065

Cited by 40 publications

(21 citation statements)

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“…This was due to the request of knowledge of the sound characteristics of those instruments from lutherie, industrial manufactory companies, researchers, curators, collectors, museums, historians, musicians, theatre companies and all parties involved with preservation and restoration of those important, valuable objects. One more reason for studying the sound characteristics of musical instruments from the physical perspective is the emulation of their sound characteristics [6] by means of measurements of impulse responses [7] and convolution with dry music, including nonlinear properties [8,9].…”

Section: Introductionmentioning

confidence: 99%

The Carabattola—Vibroacoustical Analysis and Intensity of Acoustic Radiation (IAR)

2020

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Among the studies of musical instruments, one important, sometime underestimated discipline, is represented by ethnomusicology. The acoustic analyses on ethnic musical instruments (M.I.) are much more infrequent if compared to those on classical M.I. This article deals with the vibro-acoustic analysis on one of the most unknown ethnic, Italian M.I., i.e., the carabattola (also called battola), which used to be played in Italy until the late 1960s during the Holy Thursday before Easter. The study includes modal analysis and Intensity of Acoustic Radiation measured on an original carabattola, which was played in the Romagna area until the early twentieth century. After a brief overview about the theory of acoustic and vibrational analysis on musical instruments, the Intensity of acoustic radiation and its correlation with modal analysis are recalled, based on previous studies. In the experimental part of the article, the measurements conducted on the carabattola are described. Afterwards, the results obtained both from modal analysis and IAR measurements are analyzed and compared with other measurements previously conducted on musical (particularly percussion) instruments and commented.

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Section: Introductionmentioning

confidence: 99%

The Carabattola—Vibroacoustical Analysis and Intensity of Acoustic Radiation (IAR)

2020

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“…The numerical results are affected by limitations from the software features affecting also their assessment and their mathematical post-processing [23]. As a matter of fact, it should be pointed out that not all the applications could evaluate all the parameters and it is very important from a probabilistic point of view [24], especially in historic buildings [25].…”

Section: Comparison Resultsmentioning

confidence: 99%

The Measurements of Physical Parameter on Room Acoustics: Considerations about Variability

Vodola¹

2019

Proceedings of the 5th World Congress on New Technologies

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The evaluation of room acoustics characteristics in rooms has been thoroughly described in several papers since the 60-is. Moreover, the ISO 3382 standard describes several acoustic parameters and their measurements. However, there is only a few information about the methods of pre-processing the impulse responses that are required before calculating those acoustic parameters. If the final goal of measuring the acoustical behaviour of a room is to compare it to others or to create databases, reliable and comparable data must be obtained, no matter the way they have been measured. At the Engineering Department of the University of Bologna, several tests, with the same starting data set, have been performed to compare the results given by the most commonly used PC applications, in order to identify and quantify any possible incongruity. In this paper, the main processing methods (based on Lundeby, Chu) are analysed. Moreover, they are compared with the Schroeder (backward integration) methods. In a further step, these methods are applied in some acoustic measurements employed in some opera houses in Italy.

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“…Acoustic measurements are therefore a small part of physical measurements, and are based essentially on two main phenomena: sound pressure (sound pressure, particle velocity, flow velocity) and mechanical vibration (acceleration, velocity, displacement). Consequently, the other main physical and acoustic measurements that can be identified are as follows: The last parameter allows the virtual emulation of the behavior of musical instruments by measuring impulse responses [13,14] as well as considering non-linear characteristics [15,16].…”

Section: Acoustic Measurements On Musical Instrumentsmentioning

confidence: 99%

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

2020

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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.

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Further Investigations in the Emulation of Nonlinear Systems with Volterra Series

Cited by 40 publications

References 0 publications

The Carabattola—Vibroacoustical Analysis and Intensity of Acoustic Radiation (IAR)

The Carabattola—Vibroacoustical Analysis and Intensity of Acoustic Radiation (IAR)

The Measurements of Physical Parameter on Room Acoustics: Considerations about Variability

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

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