def METHOD_NAME(label_arr, spk_list):
    turn_list = []
    length = label_arr.shape[0]
    n_spk = label_arr.shape[1]
    for k in range(n_spk):
        if spk_list[k] == "None":
            continue
        in_utt = False
        start = 0
        for i in range(length):
            if label_arr[i, k] == 1 and in_utt is False:
                start = i
                in_utt = True
            if label_arr[i, k] == 0 and in_utt is True:
                turn_list.append([spk_list[k], start, i - start])
                in_utt = False
        if in_utt:
            turn_list.append([spk_list[k], start, length - start])
    return turn_list