Normalizer.cpp File Reference

#include "config.h"
#include <math.h>
#include "libkwave/Sample.h"
#include "Normalizer.h"

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Functions
static double	limiter (const double x, const double lmtr_lvl)

Function Documentation

limiter()

static double limiter ( const double  x, const double  lmtr_lvl  )

inlinestatic

Definition at line 58 of file Normalizer.cpp.

Referenced by Kwave::Normalizer::input().

{
    double xp;

    if (x < -lmtr_lvl)
        xp = tanh((x + lmtr_lvl) / (1-lmtr_lvl)) * (1-lmtr_lvl) - lmtr_lvl;
    else if (x <= lmtr_lvl)
        xp = x;
    else
        xp = tanh((x - lmtr_lvl) / (1-lmtr_lvl)) * (1-lmtr_lvl) + lmtr_lvl;

    return xp;
}

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