spec_driven.hpp

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// toolboxes/signal/include/nk/signal/digital_filtering/spec_driven.hpp
//
// Spec-driven filter wrappers: lowpass / highpass / bandpass / bandstop.
// One-call signal-in → signal-out, with sample rate provided. Internally
// use Butterworth design + zero-phase filtfilt (default order 8).
 
#pragma once
 
#include <memory_resource>
#include <nk/value/value.hpp>
 
namespace nk::signal {

 

Value lowpass(const Value &                x,
              double                       fpass,
              double                       fs,
              int                          order = 8,
              std::pmr::memory_resource *  mr    = nullptr);

Value highpass(const Value &                x,
               double                       fpass,
               double                       fs,
               int                          order = 8,
               std::pmr::memory_resource *  mr    = nullptr);

Value bandpass(const Value &                x,
               double                       flo,
               double                       fhi,
               double                       fs,
               int                          order = 8,
               std::pmr::memory_resource *  mr    = nullptr);

Value bandstop(const Value &                x,
               double                       flo,
               double                       fhi,
               double                       fs,
               int                          order = 8,
               std::pmr::memory_resource *  mr    = nullptr);
 

} // namespace nk::signal