International Computer Music Conference 2016 Papers Track

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Additive Synthesis with Band-Limited Oscillator Sections

The band-limited oscillator (BLOsc) is atypical as it produces signal spectra with distinctive edgings instead of distinct peaks. It thereby favors a different kind of frequency selectivity. When controlled dynamically, the BLOsc preserves spectral textures that tend to disintegrate with a resonance-based (subtractive) synthesis approach. First, the math behind the BLOsc is described. Staying close to this formulation helps to keep the model malleable and to maintain the dynamic consistencies within the model. Next, an extended processing scheme is presented that essentially involves a sectioned evaluation of the frequency range. The modulation and the application of convolution-, and chance-mechanisms are examined. Stochastic control, MFCC based control and the links to formant modeling are shortly discussed. Implementations in MAX/MSP and Super Collider are used to demonstrate the different options

Author(s):

Peter Pabon     web site
Institute of Sonology
Royal Conservatoire
Netherlands

So Oishi    
Institute of Sonology
Royal Conservatoire
Netherlands

 

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