FilterParametricEqualizer_UnitTest.cc File Reference

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

Include dependency graph for FilterParametricEqualizer_UnitTest.cc:

Go to the source code of this file.

Macros
#define	THIS_FILE   "FilterParametricEqualizer_UnitTest.cc"
#define	GAMMA   1.5e-14

Functions
void	FilterParametricEqualizer_UnitTest ()

Macro Definition Documentation

#define THIS_FILE   "FilterParametricEqualizer_UnitTest.cc"

Definition at line 49 of file FilterParametricEqualizer_UnitTest.cc.

Referenced by FilterParametricEqualizer_UnitTest().

#define GAMMA   1.5e-14

Definition at line 50 of file FilterParametricEqualizer_UnitTest.cc.

Referenced by FilterParametricEqualizer_UnitTest().

Function Documentation

void FilterParametricEqualizer_UnitTest

(

)

Definition at line 52 of file FilterParametricEqualizer_UnitTest.cc.

References Nsound::Buffer::abs(), Nsound::Generator::drawLine(), Nsound::FilterParametricEqualizer::filter(), GAMMA, Nsound::Buffer::getMax(), Nsound::FilterParametricEqualizer::HIGH_SHELF, Nsound::FilterParametricEqualizer::LOW_SHELF, Nsound::FilterParametricEqualizer::PEAKING, Nsound::Buffer::plot(), Nsound::Wavefile::setDefaultSampleSize(), Nsound::Wavefile::setIEEEFloat(), Nsound::Plotter::show(), SUCCESS, TEST_ERROR_HEADER, TEST_HEADER, and THIS_FILE.

Referenced by main().

{
    cout << endl << THIS_FILE;

    Wavefile::setDefaultSampleSize(64);
    Wavefile::setIEEEFloat(true);

    Sine sine(100);

    FilterParametricEqualizer peaking(
        FilterParametricEqualizer::PEAKING,
        100,
        12,
        0.2,
        4.0);

    FilterParametricEqualizer low(
        FilterParametricEqualizer::LOW_SHELF,
        100,
        12,
        0.2,
        4.0);

    FilterParametricEqualizer high(
        FilterParametricEqualizer::HIGH_SHELF,
        100,
        12,
        0.2,
        4.0);

    Buffer freqs = sine.drawLine(5.0, 24, 6);

    static const std::string titles[3] =
    {
        "Testing Peaking filter ...",
        "Testing Low Shelf filter ...",
        "Testing High Shelf filter ..."
    };

    static const std::string types[3] =
    {
        "peaking",
        "low",
        "high"
    };

    static const std::string gold_filenames[3] =
    {
        "gold/FilterParametricEqualizer_out_peaking.wav",
        "gold/FilterParametricEqualizer_out_low.wav",
        "gold/FilterParametricEqualizer_out_high.wav"
    };

    FilterParametricEqualizer * filters[3] =
    {
        &peaking,
        &low,
        &high
    };

    Buffer noise;
    Buffer data;
    Buffer gold;
    Buffer diff;

    noise << "gold/Filter_noise.wav";
    noise << "gold/Filter_noise.wav";

    for(int i = 0; i < 3; ++i)
    {
        cout << TEST_HEADER << titles[i];

        data = filters[i]->filter(noise, freqs);

        // Create gold file
//~        data >> gold_filenames[i].c_str();

        gold = Buffer(gold_filenames[i]);

        diff = data - gold;
        diff.abs();

        if(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 << endl;
}