Digital Synthesis of Sound Generated by Tibetan Bowls and Bells
The aim of this paper is to present methods of digitally synthesising the sound generated by vibroacoustic systems with distributed parameters. A general algorithm was developed to synthesise the sounds of selected musical instruments with an axisymmetrical shape and impact excitation, i.e., Tibetan...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2015-11-01
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| Series: | Archives of Acoustics |
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| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1572 |
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| author | Andrzej GOŁAŚ Roman FILIPEK |
| author_facet | Andrzej GOŁAŚ Roman FILIPEK |
| author_sort | Andrzej GOŁAŚ |
| collection | DOAJ |
| description | The aim of this paper is to present methods of digitally synthesising the sound generated by vibroacoustic systems with distributed parameters. A general algorithm was developed to synthesise the sounds of selected musical instruments with an axisymmetrical shape and impact excitation, i.e., Tibetan bowls and bells. A coupled mechanical-acoustic field described by partial differential equations was discretized by using the Finite Element Method (FEM) implemented in the ANSYS package. The presented synthesis method is original due to the fact that the determination of the system response in the time domain to the pulse (impact) excitation is based on the numerical calculation of the convolution of the forcing function and impulse response of the system. This was calculated as an inverse Fourier transform of the system’s spectral transfer function. The synthesiser allows for obtaining a sound signal with the assumed, expected parameters by tuning the resonance frequencies which exist in the spectrum of the generated sound. This is accomplished, basing on the Design of Experiment (DOE) theory, by creating a meta-model which contains information on its response surfaces regarding the influence of the design parameters. The synthesis resulted in a sound pressure signal in selected points in space surrounding the instrument which is consistent with the signal generated by the actual instruments, and the results obtained can improve them. |
| format | Article |
| id | doaj-art-e6d55f4488554c5893b1613a783527df |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2015-11-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-e6d55f4488554c5893b1613a783527df2025-08-20T02:39:22ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2015-11-0141110.1515/aoa-2016-0014Digital Synthesis of Sound Generated by Tibetan Bowls and BellsAndrzej GOŁAŚ0Roman FILIPEK1AGH University of Science and TechnologyAGH University of Science and TechnologyThe aim of this paper is to present methods of digitally synthesising the sound generated by vibroacoustic systems with distributed parameters. A general algorithm was developed to synthesise the sounds of selected musical instruments with an axisymmetrical shape and impact excitation, i.e., Tibetan bowls and bells. A coupled mechanical-acoustic field described by partial differential equations was discretized by using the Finite Element Method (FEM) implemented in the ANSYS package. The presented synthesis method is original due to the fact that the determination of the system response in the time domain to the pulse (impact) excitation is based on the numerical calculation of the convolution of the forcing function and impulse response of the system. This was calculated as an inverse Fourier transform of the system’s spectral transfer function. The synthesiser allows for obtaining a sound signal with the assumed, expected parameters by tuning the resonance frequencies which exist in the spectrum of the generated sound. This is accomplished, basing on the Design of Experiment (DOE) theory, by creating a meta-model which contains information on its response surfaces regarding the influence of the design parameters. The synthesis resulted in a sound pressure signal in selected points in space surrounding the instrument which is consistent with the signal generated by the actual instruments, and the results obtained can improve them.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1572sound synthesiscoupled fieldsfinite element methodbellsdesign of experimentresponse surface modelling. |
| spellingShingle | Andrzej GOŁAŚ Roman FILIPEK Digital Synthesis of Sound Generated by Tibetan Bowls and Bells Archives of Acoustics sound synthesis coupled fields finite element method bells design of experiment response surface modelling. |
| title | Digital Synthesis of Sound Generated by Tibetan Bowls and Bells |
| title_full | Digital Synthesis of Sound Generated by Tibetan Bowls and Bells |
| title_fullStr | Digital Synthesis of Sound Generated by Tibetan Bowls and Bells |
| title_full_unstemmed | Digital Synthesis of Sound Generated by Tibetan Bowls and Bells |
| title_short | Digital Synthesis of Sound Generated by Tibetan Bowls and Bells |
| title_sort | digital synthesis of sound generated by tibetan bowls and bells |
| topic | sound synthesis coupled fields finite element method bells design of experiment response surface modelling. |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1572 |
| work_keys_str_mv | AT andrzejgołas digitalsynthesisofsoundgeneratedbytibetanbowlsandbells AT romanfilipek digitalsynthesisofsoundgeneratedbytibetanbowlsandbells |