bool SpectralAnalysisTest::performTest(int nSamples, int windowSize)
{
    cout << "Testing ceilPowerOfTwo:" << endl;
    unsigned int r1 = AudioData::ceilPowerOfTwo(257);
    unsigned int r2 = AudioData::ceilPowerOfTwo(256);
    cout << "ceilPowerOfTwo(257) = " << r1 << endl;
    cout << "ceilPowerOfTwo(256) = " << r2 << endl;
    if (r1 != 512 || r2 != 256)
        return false;

    const double overlap = 0.5;
    double* data = new double[nSamples];
    const double pi = 4.0 * atan(1.0);

    srand((unsigned int) time(0));

    cout << "Original data:" << endl;
    for (int i = 0; i < nSamples; i++) {
        data[i] = sin(pi * i / (nSamples - 1));
        cout << data[i] << " ";
    }
    cout << endl << endl;

    AudioData audioData(vector<double*>(1, data), nSamples, 1000);

    // Actually, the Testsuite is single-threaded, but to be 100% sure we use
    // a mutex here.
    // We don't use the BasicApplication method since this is a component test
    // for AudioData.
    fftwMutex.lock();

    pair<Matrix*, Matrix*> spectrogram =
        audioData.computeSpectrogram(SqHannFunction, windowSize, overlap, 0);
    auto_ptr<Matrix> pAmplitudeMatrix(spectrogram.first);
    auto_ptr<Matrix> pPhaseMatrix(spectrogram.second);
    
    cout << "Amplitude spectrogram:" << endl;
    cout << *pAmplitudeMatrix << endl;
    
    cout << "Phase spectrogram:" << endl;
    cout << *pPhaseMatrix << endl;

    auto_ptr<AudioData> pAudioData2(AudioData::fromSpectrogram(*pAmplitudeMatrix, *pPhaseMatrix,
        SqHannFunction, windowSize, overlap, 1000));

    fftwMutex.unlock();

    cout << "Result data:" << endl;
    const double* data2 = pAudioData2->getChannel(0);
    for (unsigned int i = 0; i < pAudioData2->nrOfSamples(); i++) {
        cout << data2[i] << " ";
    }
    cout << endl;

    return true;
}
Exemplo n.º 2
0
void CScanTool2Dlg::ReleaseData()
{
	g_lfmExamList.lock();
	EXAM_LIST::iterator itExam = g_lExamList.begin();
	for (; itExam != g_lExamList.end();)
	{
		pEXAMINFO pExam = *itExam;
		itExam = g_lExamList.erase(itExam);
		SAFE_RELEASE(pExam);
	}
	g_lfmExamList.unlock();

	SAFE_RELEASE(_pModel_);
}
Exemplo n.º 3
0
void UnlockStartupStore() {
	CritSec_StartupStore.unlock();
}