Butterworth Filters by Chad Greene

Highpass, lowpass, bandpass, and bandstop Butterworth frequency filters. (filtering, dsp, frequency)

[filtered_signal,filtb,filta]=bandpass_butterworth(inputsig...

[filtered_signal,filtb,filta]=bandstop_butterworth(inputsig...

[filtered_signal,filtb,filta]=hipass_butterworth(inputsigna...

IIR FILTER _BUTTERWORTH by irfan

iir butterworth filter (high pass) (high pass)

butter_high.m

Butterworth Filter by Zeeshan Shareef

It is the Function file for calculating the components values for the Butterworth Filter. (butterworth, low pass, high pass)

[ind,cap,n]=butter(ap,as,fp,fs,r1,ty)

synth.m

y=adjust(x) % The purpose of this function to make any r...