Full-Band Quasi-Harmonic Analysis and Synthesis of Musical Instrument Sounds with Adaptive Sinusoids

dc.contributor.author Marcelo Freitas Caetano en
dc.contributor.author Kafentzis,GP en
dc.contributor.author Mouchtaris,A en
dc.contributor.author Stylianou,Y en
dc.date.accessioned 2017-12-13T13:03:12Z
dc.date.available 2017-12-13T13:03:12Z
dc.date.issued 2016 en
dc.description.abstract Sinusoids are widely used to represent the oscillatory modes of musical instrument sounds in both analysis and synthesis. However, musical instrument sounds feature transients and instrumental noise that are poorly modeled with quasi-stationary sinusoids, requiring spectral decomposition and further dedicated modeling. In this work, we propose a full-band representation that fits sinusoids across the entire spectrum. We use the extended adaptive Quasi-Harmonic Model (eaQHM) to iteratively estimate amplitude- and frequency-modulated (AM-FM) sinusoids able to capture challenging features such as sharp attacks, transients, and instrumental noise. We use the signal-to-reconstruction-error ratio (SRER) as the objective measure for the analysis and synthesis of 89 musical instrument sounds from different instrumental families. We compare against quasi-stationary sinusoids and exponentially damped sinusoids. First, we show that the SRER increases with adaptation in eaQHM. Then, we show that full-band modeling with eaQHM captures partials at the higher frequency end of the spectrum that are neglected by spectral decomposition. Finally, we demonstrate that a frame size equal to three periods of the fundamental frequency results in the highest SRER with AM-FM sinusoids from eaQHM. A listening test confirmed that the musical instrument sounds resynthesized from full-band analysis with eaQHM are virtually perceptually indistinguishable from the original recordings. en
dc.identifier.uri http://repositorio.inesctec.pt/handle/123456789/3982
dc.identifier.uri http://dx.doi.org/10.3390/app6050127 en
dc.language eng en
dc.relation 6065 en
dc.rights info:eu-repo/semantics/openAccess en
dc.title Full-Band Quasi-Harmonic Analysis and Synthesis of Musical Instrument Sounds with Adaptive Sinusoids en
dc.type article en
dc.type Publication en
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