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- | EFFICIENT SOUND SYNTHESIS BY RECURSIVE DIGITAL FILTERS IN PARALLEL FORM: | + | ===== Efficient Sound Synthesis by Recursive Digital Filters in Parallel Form: Virtual Musical Instruments and Artificial Reverberation ===== |
- | VIRTUAL MUSICAL INSTRUMENTS AND ARTIFICIAL REVERBERATION | + | |
+ | **Participants: | ||
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+ | **Collaborators: | ||
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+ | **Period:** 2014 - ongoing | ||
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+ | ---- | ||
Recursive digital filters in parallel form offer a number of advantages. Besides their suitability for parallel implementation, | Recursive digital filters in parallel form offer a number of advantages. Besides their suitability for parallel implementation, | ||
- | Ref: IEEE SPL | + | * Maestre, E., Scavone, G., and Smith, J.O. (2016). [[https:// |
A first research pursuit engages in the development of novel methods to render musical instrument sound by combining the digital waveguide and modal synthesis frameworks. Through a modal analysis technique based on constrained optimization of parallel filter coefficients, | A first research pursuit engages in the development of novel methods to render musical instrument sound by combining the digital waveguide and modal synthesis frameworks. Through a modal analysis technique based on constrained optimization of parallel filter coefficients, | ||
- | Ref: IEEE TASLP | + | * Maestre, E., Scavone, G., and Smith, J.O. (2017). [[https:// |
- | Ref: DAFX 2018 | + | |
+ | * Maestre, E., Scavone, G., and Smith, J.O. (2018). [[http:// | ||
In a related problem, the challenge of designing a modal reverberator to match a measured room impulse response is considered. The modal reverberator architecture expresses a room impulse response as a parallel combination of resonant filters, with the pole locations determined by the room resonances and decay rates, and the zeros by the source and listener positions. Our objective is to first estimate the pole positions in an iterative process involving a series of constrained pole position optimizations in overlapping frequency bands; then, with the pole locations in hand, the zeros are fit to the measured impulse response using least squares. | In a related problem, the challenge of designing a modal reverberator to match a measured room impulse response is considered. The modal reverberator architecture expresses a room impulse response as a parallel combination of resonant filters, with the pole locations determined by the room resonances and decay rates, and the zeros by the source and listener positions. Our objective is to first estimate the pole positions in an iterative process involving a series of constrained pole position optimizations in overlapping frequency bands; then, with the pole locations in hand, the zeros are fit to the measured impulse response using least squares. | ||
- | Ref: DAFX 2017 | + | * Maestre, E., Abel, J., Smith, J. and Scavone, G. (2017) {{:publications: |