IiLowPass_1st_order

A low pass filter filters out the high frequencies. This filter is designed with the impulse invariant method. A simple first order section is designed. Up to four of those sections can be cascaded (N = number of cascades). The overall “–3dB point” does stay on the same frequency for any value of N. The left output channel will contain the low pass filtered signal. The right output channel is the original minus the low pass filtered signal.

 

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