code: def setup_scaler(self, mel_mean, mel_std, linear_mean, linear_std):
      self.mel_scaler = StandardScaler()
      self.mel_scaler.set_stats(mel_mean, mel_std)
      self.linear_scaler = StandardScaler()
      self.linear_scaler.set_stats(linear_mean, linear_std)
  
imports: import librosa
  import soundfile
  import numpy
  import scipy.io.wavfile
  import scipy.signal
  from TTS.tts.utils.data import StandardScaler
label_desc: Use image node_id 7 for calling the AudioProcessor obj's underlying member method code with example usage: obj.setup_scaler(mel_mean, mel_std, linear_mean, linear_std) without return types