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Old 15th September 2012, 09:51 AM   #1
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Join Date: Jul 2012
Default MiniDSP programming

I want to implemtent the following IIR filter on miniDSP :

y[n] = x[n] + 0.93 * y[n-40]

The above filter has the transfer function :

H(z) = 1 / (1 - z^-40)

miniDSP allows to cascade biquads, this filter can be implemented by cascading 20 biquads if the filter coefficients are allowed to be complex. Does biquad filter implementation on miniDSP allow complex coefficients? If not, how can I implement the aobe filter?

Thanks in advance.

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Old 15th September 2012, 02:19 PM   #2
diyAudio Member
Join Date: Jul 2012
Correction :

H(z) = 1 / ( 1 - 0.93 * z^-40)
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