code: def reverberate(self, audio):
      audio_len = audio.shape[0]
  
      rir_file = random.choice(self.rir_files)
      rir = self.ap.load_wav(rir_file, sr=self.ap.sample_rate)
      rir = rir / np.sqrt(np.sum(rir**2))
      return signal.convolve(
          audio, rir, mode=self.rir_config["conv_mode"]
      )[:audio_len]
  
file_path: TTS/TTS/encoder/utils/generic_utils.py
imports: import glob
  import os
  import random
  import numpy
  from scipy import signal
  from TTS.encoder.models.lstm import LSTMSpeakerEncoder
  from TTS.encoder.models.resnet import ResNetSpeakerEncoder
label_desc: Use image node_id 4 for calling the AugmentWAV obj's underlying member method code with example usage: obj.reverberate(audio) and returns: signal