def early_downsample_count()

in realbook/layers/nnaudio.py [0:0]

• 5 lines of code
• 1 McCabe index (conditional complexity)

def early_downsample_count(nyquist_hz: float, filter_cutoff_hz: float, hop_length: int, n_octaves: int) -> int:
    """Compute the number of early downsampling operations"""

    downsample_count1 = max(0, int(np.ceil(np.log2(0.85 * nyquist_hz / filter_cutoff_hz)) - 1) - 1)
    num_twos = next_power_of_2(hop_length)
    downsample_count2 = max(0, num_twos - n_octaves + 1)

    return min(downsample_count1, downsample_count2)