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Multiresolution Sinusoidal Modeling

Prior to the late 1990s, both vocoders and sinusoidal models were focused on modeling single-pitched, monophonic sound sources, such as a single saxophone note. Scott Levine showed that by going to multiresolution sinusoidal modeling10., it becomes possible to encode general polyphonic sound sources with a single unified system [149,147,148]. ``Multiresolution'' refers to the use of a non-uniform filter bank, such as a wavelet or ``constant Q'' filter bank, in the underlying spectrum analysis.

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