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projects:pms [2017/02/28 19:26]
gary [Efficient and Accurate Synthesis of Strings] 		projects:pms [2020/03/23 15:43]
gary [Efficient and Accurate Synthesis of Strings]
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 Since 2012, we have engaged in a research collaboration with Dr. Esteban Maestre and Dr. Julius Smith (Stanford University) to investigate the design of violin and guitar body filters, parameterized from measurements, for sound synthesis models. This research has included: modal decomposition of measured driving-point admittances obtained by means of a novel frequency-domain algorithm for optimization of digital filters in parallel form; passive modeling of radiativity and admittance by projection of measurements over a common modal basis, and an efficient implementation of bridge reflectance and sound radiativity filters from a single bank of shared resonant filters. The results make it possible to synthesize in real time the sound of a specific violin or guitar, with many possible commercial applications. For example, this technology could be used to virtually audition, via an online interface, a set of instruments for sale in a shop. Since 2012, we have engaged in a research collaboration with Dr. Esteban Maestre and Dr. Julius Smith (Stanford University) to investigate the design of violin and guitar body filters, parameterized from measurements, for sound synthesis models. This research has included: modal decomposition of measured driving-point admittances obtained by means of a novel frequency-domain algorithm for optimization of digital filters in parallel form; passive modeling of radiativity and admittance by projection of measurements over a common modal basis, and an efficient implementation of bridge reflectance and sound radiativity filters from a single bank of shared resonant filters. The results make it possible to synthesize in real time the sound of a specific violin or guitar, with many possible commercial applications. For example, this technology could be used to virtually audition, via an online interface, a set of instruments for sale in a shop.
  
-A recent collaboration with several researchers at Stanford and the Politecnico di Milano is focusing on the virtual restoration and resynthesis of a historically important violin, the 1716 “Messiah” by Stradivarius, which has never been played because of a crack in its top plate.+A recent collaboration with several researchers at Stanford and the Politecnico di Milano is focusing on the virtual restoration and resynthesis of a historically important violin, the 1716 “Messiah” by Stradivarius, which sits in Ashmolean Museum in Oxford, England and cannot be played because of its fragile condition.
  
   * Maestre, E., Scavone, G. and Smith, J.O. (2016) [[http://ieeexplore.ieee.org/document/7558138/|"Design of Recursive Digital Filters in Parallel Form by Linearly Constrained Pole Optimization."]] //IEEE Signal Processing Letters//, Vol. 23, Issue 11, pp. 1547–1550.   * Maestre, E., Scavone, G. and Smith, J.O. (2016) [[http://ieeexplore.ieee.org/document/7558138/|"Design of Recursive Digital Filters in Parallel Form by Linearly Constrained Pole Optimization."]] //IEEE Signal Processing Letters//, Vol. 23, Issue 11, pp. 1547–1550.