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Abstract
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Introduction
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Art
Music

Vector phaseshaping synthesis

Profile image of Vesa ValimakiVesa Valimaki

2010

Abstract

This paper introduces the Vector Phaseshaping (VPS) synthesis technique, which extends the classic Phase Distortion method by providing flexible means to distort the phase of a sinusoidal oscillator. This is achieved by describing the phase distortion function using one or more breakpoint vectors, which are then manipulated in two dimensions to produce waveshape modulation at control and audio rates. The synthesis parameters and their effects are explained, and the spectral description of the method is derived. Certain synthesis parameter combinations result in audible aliasing, which can be reduced with a novel aliasing suppression algorithm described in the paper. The extension is capable of producing a variety of interesting harmonic and inharmonic spectra, including for instance, formant peaks, while the two-dimensional form of the control parameters is expressive and is well suited for interactive applications.

Key takeaways
sparkles

AI

  1. Vector Phaseshaping (VPS) synthesis enhances Phase Distortion by using two-dimensional inflection vectors.
  2. VPS can produce diverse harmonic and inharmonic spectra, including formants and complex waveforms.
  3. A novel aliasing suppression algorithm significantly reduces audible aliasing in VPS outputs.
  4. Modulating VPS parameters at audio rates creates intricate timbral variations and spectral characteristics.
  5. The paper aims to establish VPS as a versatile tool for musical sound synthesis applications.

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  • Computer Science
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  • Phase Distortion
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