code: def download_align(from_idx, to_idx, _params):
      
      succ = set()
      fail = set()
      for idx in range(from_idx, to_idx):
          name = 's' + str(idx)
          if idx == 0:
              continue
          script = "http://spandh.dcs.shef.ac.uk/gridcorpus/{nm}/align/{nm}.tar".format(nm=name)
          down_sc = 'cd {align_path} && wget {script} && \
                      tar -xvf {nm}.tar'.format(script=script,
                                                nm=name,
                                                align_path=_params['align_path'])
          try:
              print(down_sc)
              os.system(down_sc)
              succ.add(idx)
          except OSError as error:
              print(error)
              fail.add(idx)
      return (succ, fail)
docs: download aligns