code: def dynamic_range_decompression(x, C=1):
      """
      PARAMS
      ------
      C: compression factor used to compress
      """
      return torch.exp(x) / C
  
imports: import os
  from glob import glob
  from typing import Dict, List
  import librosa
  import numpy
  import torch
  import torchaudio
  from scipy.io.wavfile import read
  from TTS.utils.audio.torch_transforms import TorchSTFT
label_desc: Use image node_id 9 for calling a global function with example usage: dynamic_range_decompression(x, C) and returns: unknown