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Discussion

The IIR decimator subsystem module implements an IIR low-pass filter followed by a downsampler. The IIR low-pass filter is realized by adding allpass pair subsystem output. Vaiable filter is implemented as an 8th order elliptical filter. The module variable cutoffFreq must be smaller than Fs*0.5/D, where Fs is a the sampling rate and D is a the decimation factor.The

• This module accepts any input block size

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• . 

• The output block size equals the input block size divided by the decimation factor D.

• The output sample rate equals the input sample rate divided by D.

Type Definition

-Not Shown-

Variables

Properties

Pins

Input Pins

Name: in

Description: Audio input

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