28 lines
383 B
C++
28 lines
383 B
C++
#pragma once
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//DC offset removal IIR filter
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namespace nall::DSP::IIR {
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struct DCRemoval {
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auto reset() -> void;
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auto process(f64 in) -> f64; //normalized sample (-1.0 to +1.0)
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private:
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f64 x;
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f64 y;
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};
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inline auto DCRemoval::reset() -> void {
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x = 0.0;
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y = 0.0;
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}
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inline auto DCRemoval::process(f64 in) -> f64 {
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x = 0.999 * x + in - y;
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y = in;
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return x;
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}
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}
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