چکیده مقاله
This work presents advanced developments in nonlinear audio signal processing for harmonic generation within professional audio systems Four principal nonlinear processors harmonic exciters, hysteresis based models, nonlinear biquad filters, and subharmonic generators are fundamentally reengineered through three major innovations First, a quadruple oversampling framework mitigates aliasing artifacts by approximately 25% while enhancing harmonic accuracy and perceptual transparency Second, adaptive nonlinearity functions, responsive to both signal envelope and spectral composition, yield up to a 30% increase in harmonic richness Third, numerical robustness is strengthened through fourth order Runge–Kutta integration combined with parameter normalization, ensuring stability across diverse operating conditions Experimental evaluations confirm a 20–30% reduction in unwanted artifacts alongside substantial improvements in harmonic and subharmonic synthesis accuracy Implemented as open source audio plug ins, these methods transcend key limitations of conventional approaches, enabling real time, high fidelity harmonic enhancement that establishes a new reference point for nonlinear audio effects
کلیدواژهها
نویسندگان
Amin Pouladvand
Department of Electrical Engineering Lorestan University Khorramabad, Iran
Salman Karimi
Department of Electrical Engineering Lorestan University Khorramabad, Iran
شیوه ارجاع
Pouladvand, Amin and Karimi, Salman,1404,Advanced Harmonic Generation in Digital Audio Effects via Oversampling and Signal-Adaptive Nonlinearities,The 4th International Conference and the 9th National Conference on Computers, Information Technology and Artificial Intelligence Applications,Ahvaz
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مجموعه مقالات پنجمین همایش ملی و نخستین همایش بین المللی محاسبات نرم علوم مهندسی در صنعت و جامعه26 بهمن 1404 · ایرانشهر