Screenshots
Import
Import data from REW. 3 bands. Impedance and SPL
You can view the data when the path to the textfiles are inserted.
Filter
Filter is split between Low , mid and high.
Low and high are up to 4th order, mid is 2 x up to 4th order. Eg. LP and HP
Filtervalues can be written. Text that is not recognised as number is disregarded.
R values can be used to model R in inductor L.
Phase shift in speaker or phase reversal can be set in "Speaker" Field. 180 is phase reversal or switch + and -
Calculate
Transfer functions, SPL, Impedance can be drawn from here. Chose 6, 2 or 0.5 db/oct for y. x is log. The right slope is then easy to verify.
Number 0 to 2 refer to Z0n to Z2n. Agg is all aggregated (or muliplied complex form)
Filtermaker
Slide Components
L is changes between Lmin to Lmax in 5+1 steps, Nl. Same With C, form Cmin to Cmax in Nc = 5+1 steps.
IZImin is lowest impedance
Different matching algorithms between active and passive filter and best Component values.
Compare
Compare an simulation With a real measurement. Impedance or SPL