Modal Processor Effects Inspired by Hammond Tonewheel Organs
AbstractIn this design study, we introduce a novel class of digital audio effects that extend the recently introduced modal processor approach to artificial reverberation and effects processing. These pitch and distortion processing effects mimic the design and sonics of a classic additive-synthesis-based electromechanical musical instrument, the Hammond tonewheel organ. As a reverb effect, the modal processor simulates a room response as the sum of resonant filter responses. This architecture provides precise, interactive control over the frequency, damping, and complex amplitude of each mode. Into this framework, we introduce two types of processing effects: pitch effects inspired by the Hammond organ’s equal tempered “tonewheels”, “drawbar” tone controls, vibrato/chorus circuit, and distortion effects inspired by the pseudo-sinusoidal shape of its tonewheels and electromagnetic pickup distortion. The result is an effects processor that imprints the Hammond organ’s sonics onto any audio input. View Full-Text
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Description: website with audio used to generate Figures 9–16 and to illustrate the discussion in the conclusion
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Werner, K.J.; Abel, J.S. Modal Processor Effects Inspired by Hammond Tonewheel Organs. Appl. Sci. 2016, 6, 185.
Werner KJ, Abel JS. Modal Processor Effects Inspired by Hammond Tonewheel Organs. Applied Sciences. 2016; 6(7):185.Chicago/Turabian Style
Werner, Kurt J.; Abel, Jonathan S. 2016. "Modal Processor Effects Inspired by Hammond Tonewheel Organs." Appl. Sci. 6, no. 7: 185.
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