C++ (Cpp) PeakFinderの例

コード例 #1

ファイル: BPMDetect.cpp プロジェクト: ruthmagnus/audacity

float BPMDetect::getBpm()
{
    float peakPos;
    PeakFinder peakFinder;

    // find peak position
    peakPos = peakFinder.detectPeak(xcorr, windowStart, windowLen);

    assert(decimateBy != 0);
    if (peakPos < 1e-6) return 0.0; // detection failed.

    // calculate BPM
    return 60.0f * (((float)sampleRate / (float)decimateBy) / peakPos);
}

コード例 #2

ファイル: BPMDetect.cpp プロジェクト: 0ryuO/dolphin-avsync

float BPMDetect::getBpm()
{
    double peakPos;
    double coeff;
    PeakFinder peakFinder;

    coeff = 60.0 * ((double)sampleRate / (double)decimateBy);

    // save bpm debug analysis data if debug data enabled
    _SaveDebugData(xcorr, windowStart, windowLen, coeff);

    // remove bias from xcorr data
    removeBias();

    // find peak position
    peakPos = peakFinder.detectPeak(xcorr, windowStart, windowLen);

    assert(decimateBy != 0);
    if (peakPos < 1e-9) return 0.0; // detection failed.

    // calculate BPM
    return (float) (coeff / peakPos);
}