code: def apply_fx(sound_path, speed):
      # Get the effect
      fx = AudioEffectsChain().speed(speed)
      s, rate = sf.read(sound_path)
      # Get 1st channel
      s = s[:, 0]
      # Apply effect
      s = fx(s)
      # Write the file
      sf.write(
          f"""{sound_path.replace(
          '.wav',f"sp{str(speed).replace('.','')}" +'.wav')}""",
          s,
          rate,
      )
  
file_path: speechbrain/recipes/Aishell1Mix/prepare_data.py
imports: import os
  import csv
  import tarfile
  import zipfile
  import glob
  import tqdm.contrib.concurrent
  import soundfile
  import functools
  from pysndfx import AudioEffectsChain
  from urllib.request import urlretrieve
label_desc: Use image node_id 6 for calling a global function with example usage: apply_fx(sound_path, speed) without return types