Passive filter

The filter syntesis program emulates a passive 4 order filter.

• 3 bands: High, mid and low

• Imports RoomEQwizard impedance and SPL data for each band

• R,L and C on each node

• Calculates Butterworth 1 to 4 order for both active and passive

• Automatic change components and correlates with active filer spesified by user. From 100 changes/second.

• Look at curves as components are changing!

• Curves for all components, tranfer function and SPL

• Magnitude and phase in dB and degrees + plot in complex chartesian diagram, s+jw

• Saves all settings as xml, no use of registers

• Based on complex numbers and Cauer/prototype networks.

• Windows desktop program coded in Visual Basic.

• Uses mathdotnet library. http://numerics.mathdotnet.com

• Prerequisites: Microsoft .NET framework 4.5.2.