Sinusoidal Synthesis Optimization
نویسندگان
چکیده
This paper presents a method for improving synthesis efficiency in sinusoidal models. In the case of synthesizing polyphonic music, many overtones can be pruned, using perceptual and trigonometric methods. The main contribution of this work is a pre-processing algorithm giving a significant reduction of the number of sinusoids to synthesize (from several thousands to around one hundred), consisting of an optimized masking and hearing threshold calculation, and a sinusoidal merging procedure for sinusoids close in frequency. The frequency difference that can be merged has been determined, and increased using analytic band limitation.
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