utils.py 文件源码

def hz_to_cents(freq_hz, ref_hz=32.0):
    '''Convert frequency values from Hz to cents

    Parameters
    ----------
    freq_hz : np.array
        Array of contour frequencies in Hz
    ref_hz : float
        Reference frequency in Hz

    Returns
    -------
    freq_cents : np.array
        Array of contour frequencies in cents
    '''
    freq_cents = 1200.0 * np.log2(freq_hz / ref_hz)
    return freq_cents