FilterCombLowPassFeedback_UnitTest.cc File Reference

#include <Nsound/Nsound.h>
#include <Nsound/Buffer.h>
#include <Nsound/FilterCombLowPassFeedback.h>
#include <Nsound/Plotter.h>
#include <Nsound/Sine.h>
#include <Nsound/Wavefile.h>
#include "UnitTest.h"
#include <cmath>
#include <stdlib.h>
#include <iostream>

Include dependency graph for FilterCombLowPassFeedback_UnitTest.cc:

Go to the source code of this file.

Functions
void	FilterCombLowPassFeedback_UnitTest ()

Variables
static const char *	THIS_FILE = "FilterCombLowPassFeedback_UnitTest.cc"
static const float64	GAMMA = 1.5e-14

Function Documentation

void FilterCombLowPassFeedback_UnitTest

(

)

Definition at line 55 of file FilterCombLowPassFeedback_UnitTest.cc.

References Nsound::Buffer::abs(), Nsound::Generator::drawLine(), Nsound::FilterCombLowPassFeedback::filter(), GAMMA, Nsound::Buffer::getMax(), Nsound::Buffer::normalize(), Nsound::Buffer::plot(), Nsound::Wavefile::setDefaultSampleSize(), Nsound::Plotter::show(), SUCCESS, TEST_ERROR_HEADER, TEST_HEADER, and THIS_FILE.

Referenced by main().

{
    cout << endl << THIS_FILE;

    Wavefile::setDefaultSampleSize(48);

    FilterCombLowPassFeedback f(100.0, 0.1, 0.66, 12.0);

    // Create some noise!
    Sine sine(100);

    Buffer noise;

    noise << "gold/Filter_noise.wav";

    cout << TEST_HEADER << "Testing FilterCombLowPassFeedback::filter(input) ...";

    Buffer data;

    data = f.filter(noise);
    data.normalize();

    // Create the gold file
//~    data >> "gold/FilterCombLowPassFeedback_out1.wav";

    Buffer gold;

    gold << "gold/FilterCombLowPassFeedback_out1.wav";

    Buffer diff = data - gold;

    Buffer abs_diff(diff);
    abs_diff.abs();

    if(abs_diff.getMax() > GAMMA)
    {
        cerr << TEST_ERROR_HEADER
             << "Output did not match gold file!"
             << endl;

        diff.plot("data - gold");
        data.plot("data");
        gold.plot("gold");

        Plotter::show();

        exit(1);
    }

    cout << SUCCESS;

    cout << TEST_HEADER << "Testing FilterCombLowPassFeedback::filter(input, freqs) ...";

    Buffer freqs = sine.drawLine(1.0, 6.0, 50.0);

    data = f.filter(noise, freqs);
    data.normalize();

    // Create the gold file
//~    data >> "gold/FilterCombLowPassFeedback_out2.wav";

    gold = Buffer();

    gold << "gold/FilterCombLowPassFeedback_out2.wav";

    diff = data - gold;

    abs_diff = diff;
    abs_diff.abs();

    if(abs_diff.getMax() > GAMMA)
    {
        cerr << TEST_ERROR_HEADER
             << "Output did not match gold file!"
             << endl;

        diff.plot("data - gold");
        data.plot("data");
        gold.plot("gold");

        Plotter::show();

        exit(1);
    }

//~    cout << SUCCESS;


    cout << SUCCESS << endl;

}

Variable Documentation

const char* THIS_FILE = "FilterCombLowPassFeedback_UnitTest.cc"

static

Definition at line 51 of file FilterCombLowPassFeedback_UnitTest.cc.

Referenced by FilterCombLowPassFeedback_UnitTest().

const float64 GAMMA = 1.5e-14

static

Definition at line 53 of file FilterCombLowPassFeedback_UnitTest.cc.

Referenced by FilterCombLowPassFeedback_UnitTest().