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a real time magnetic saturation model
  DSP Module


A real time hysteresis model in VHDL for magnetic saturation



A VHDL-implementation of my magnetic hysteresis model is used to add saturation effects to audio signals in real time making it possible to emulate magnetic tapes and side effects of coils and transformers in analog audio signal paths. The model runs with surprisingly low resource usage and has full coverage of the typical effects though. It shows a deviation of less than 5% from the measured behavior of classical ferromagnetic materials.


Magnetic Hysteresis Model - Jürgen Schuhmacher 2006
Dynamic B-H curve with real saturation and full frequency dependence

 Read more about the model here:

Magnetic Hysteresis

 
Xilinx
Spartan 3E
FPGA

 

 
96 kHz
Audio DSP

 

© Sound of L.A. Music Productions 2006