/* octave: fir1(31, 0.885) */
static float lpf_coeffs[32] = {
    6.9856e-04,
    -1.3870e-03,
    2.4721e-03,
    -3.9835e-03,
    5.5881e-03,
    -6.5527e-03,
    5.8335e-03,
    -2.2854e-03,
    -5.0485e-03,
    1.6637e-02,
    -3.2228e-02,
    5.0757e-02,
    -7.0421e-02,
    8.8939e-02,
    -1.0394e-01,
    1.1337e-01,
    8.8355e-01,
    1.1124e-01,
    -1.0004e-01,
    8.3920e-02,
    -6.5077e-02,
    4.5877e-02,
    -2.8440e-02,
    1.4301e-02,
    -4.2154e-03,
    -1.8476e-03,
    4.5515e-03,
    -4.9271e-03,
    4.0694e-03,
    -2.8758e-03,
    1.8848e-03,
    -1.2410e-03
};