{'fraction_non_alphanumeric': 0.02050113895216401, 'fraction_numerical': 0.0, 'mean_word_length': 4.945945945945946, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A design method of fluency FIR filters with steep cut-off

We develop a new design method of FIR filters with steep cut-off, using a series connection of multiplication-summation modules of scaled versions of basic filters. The module turns out to correspond to the recursion of so-called mean operation, in principle. Numerical example shows the proposed method outperforms conventional method in both steepness and number of multipliers.