Softube Ab

Fredrik Gustaffsson

Oscar Öberg

Martin Enqvist

Per Connman

Niklas Odelholm

The invention describes an apparatus for software or hardware emulation of electronic audio equipment, which characterizes a non-linear behavior. The invention comprises an analog to digital interface () for the input audio signal (), whose output () is communicatively coupled to a dynamic non-linearity (). The output () of this dynamic non-linearity is finally communicatively coupled to an interface () producing the output audio signal (). The dynamic non-linearity consists of a mode switching static non-linear function, where the mode parameter () is estimated in a function () based on the previous values on the input () and output () of the dynamic non-linearity.

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Linköping, Sweden

Fredrik Gustaffsson