A Measurement Technique for Highly Nonlinear Transfer Functions

Stephan Möller; Martin Gromowski; Udo Zölzer
DAFx-2002 - Hamburg
This paper presents a new method to estimate nonlinear transfer functions of tube amplifiers or distortion effect stages. A special test signal and a sorting algorithm allow the calculation of the nonlinear transfer functions. PSPICE simulations of a tube amplifier as well as real-time measurements of a tube amplifier with a high quality 24bit/96kHz sound card will be presented.
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