fix: NameError when cutoff is zero in kaiser_sinc_filter1d

[andrewwhitecdw]

Problem

fix: NameError when cutoff is zero in kaiser_sinc_filter1d

Fix

Replace:

    if cutoff == 0:
        filter_ = torch.zeros_like(time)
    else:
        filter_ = 2 * cutoff * window * sinc(2 * cutoff * time)
        """
        Normalize filter to have sum = 1, otherwise we will have a small leakage of the constant component in the input signal.
        """
        filter_ /= filter_.sum()
        filter = filter_.view(1, 1, kernel_size)

    return filter

with:

    if cutoff == 0:
        filter_ = torch.zeros_like(time)
    else:
        filter_ = 2 * cutoff * window * sinc(2 * cutoff * time)
        """
        Normalize filter to have sum = 1, otherwise we will have a small leakage of the constant component in the input signal.
        """
        filter_ /= filter_.sum()

    filter = filter_.view(1, 1, kernel_size)

    return filter

Files changed

• alias_free_activation/torch/filter.py