Hi jingxizhang,
I require your help on knowledge of how you implemented the filterProcess method in C#. Below are some ? points
1)Whats the specification of the filter: chebyshev/butterworth, order, samplerate, cutoff freq.
2)why did you use "gain as 231.1047679" in the following code -> xv[6] = (double)data[i] / gain;
3)why did you use "+2048" in the following code -> output[i++] = (short)yv[6]+2048;
Also interested in knowing how you arrived at the coefficient values used in the code. Did you scaled it anyway?
I use the Java applet at http://www.dsptutor.freeuk.com/IIRFilte … esign.html for determining the coeffs.
Sorry, I am a newbie to the brave filter design world & interested in knowhow of filter code.
-Satish.
