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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Room - Clarity function is broken | not working without bands","articleBody":"### Function call a/c to documentation:\r\n\r\n- acoustics.room.c50_from_file(file_name, bands=None)\r\n- acoustics.room.c80_from_file(file_name, bands=None)\r\n- acoustics.room.clarity(time, signal, fs, bands=None)\r\n\r\n### Run time error when calling these functions:\r\n- Sample function call:\r\n\r\n```acoustics.room.c50_from_file(files[0], bands=None)```\r\n\r\n- Error:\r\n```\r\n    240         high = third_high(bands[0], bands[-1])\r\n    241 \r\n--\u003e 242     c = np.zeros(bands.size)\r\n    243     for band in range(bands.size):\r\n    244         filtered_signal = bandpass(signal, low[band], high[band], fs, order=8)\r\n\r\nAttributeError: 'NoneType' object has no attribute 'size'\r\n```\r\n\r\n### Band is a mandatory parameter a/c to code but optional a/c to documents.","author":{"url":"https://github.com/ngautam0kaggel","@type":"Person","name":"ngautam0kaggel"},"datePublished":"2021-10-03T07:52:17.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/251/python-acoustics/issues/251"}