freqToBin()

int fl::audio::fft::Bins::freqToBin

(

float

freq

)

const

Definition at line 111 of file fft.cpp.hpp.

                                    {
    int nbands = static_cast<int>(mBinsRaw.size());
    if (nbands <= 1) return 0;
    if (freq <= mFmin) return 0;
    if (freq >= mFmax) return nbands - 1;
    float m = fl::logf(mFmax / mFmin);
    float bin = fl::logf(freq / mFmin) / m * static_cast<float>(nbands - 1);
    int result = static_cast<int>(bin + 0.5f);
    if (result < 0) return 0;
    if (result >= nbands) return nbands - 1;
    return result;
}

References fl::logf(), mBinsRaw, mFmax, and mFmin.

Referenced by fl::audio::detector::Vocal::computeFormantRatio(), and operator=().

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