def nearest_bins(self, bins, even=False, pow2=False):
        """Return nearest number of FFT bins (even or power of two)"""
        if pow2:
            bins_log2 = math.log(bins, 2)
            if bins_log2 % 1 != 0:
                bins = 2**math.ceil(bins_log2)
                logger.warning('number of FFT bins should be power of two, changing to {}'.format(bins))
        elif even:
            if bins % 2 != 0:
                bins = math.ceil(bins / 2) * 2
                logger.warning('number of FFT bins should be even, changing to {}'.format(bins))

        return bins
Return nearest number of FFT bins (even or power of two)