Filter coefficient calculation???

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Bala kumar
Bala kumar 2016-2-23
评论： Bala kumar 2016-2-23
Hi all,
I am trying to devlop an equalizer for that I am using different filter combinations. In that I need Filter coefficient (numerator-b,denominator-a) calculation formulae's for first and second order Lowpass filter, Highpass filter and notch filter.
  2 个评论
Jan
Jan 2016-2-23
What have you tried so far and which problems occur? The question does not contain enough inputs to be answered uniquely. Perhaps you want a 2nd order Butterworth filter, perhaps you don't.
Bala kumar
Bala kumar 2016-2-23
Hi Jan Simon, I am trying to calculate filter coefficients without using matlab comments based on tunable parameters like Gain, Cut off frequency and Quality factor. After calculating filter coefficients I will pass this coefficients to the Biquad filter block. there I will process filtering.
Is there any posiblity to use Biquad filter block for first order filter by setting a2 and b2 coefficients by zero.

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