code: def _write_short_waveform_csv(w, ID, ext, duration, filename, index):
      """
      Write a CSV row for a short audio waveform.
  
      Arguments
      ---------
          w (file): The open CSV file for writing.
          ID (str): The unique identifier for the audio.
          ext (str): The audio file extension.
          duration (float): The duration of the audio in seconds.
          filename (str): The path to the audio file.
          index (int): The index of the audio file in the list.
      """
      w.write(
          ",".join(
              (
                  f"{ID}_{index}",
                  str(duration),
                  filename,
                  ext,
                  "\n",
              )
          )
      )
  
file_path: speechbrain/speechbrain/augment/preparation.py
imports: import os
  import logging
  import torchaudio
  from speechbrain.utils.data_utils import download_file
  from speechbrain.utils.data_utils import get_all_files
label_desc: Use image node_id 7 for calling a global function with example usage: _write_short_waveform_csv(w, ID, ext, duration, filename, index) without return types