code: def rms_volume_norm(
      *, x: np.ndarray, db_level: float = -27.0, **kwargs
  ) -> np.ndarray:
      """Normalize the volume based on RMS of the signal.
  
      Args:
          x (np.ndarray): Raw waveform.
          db_level (float): Target dB level in RMS. Defaults to -27.0.
  
      Returns:
          np.ndarray: RMS normalized waveform.
      """
      assert (
          -99 <= db_level <= 0
      ), " [!] db_level should be between -99 and 0"
      wav = rms_norm(wav=x, db_level=db_level)
      return wav
  
imports: from io import BytesIO
  from typing import Tuple
  import librosa
  import numpy
  import scipy
  import soundfile
  from librosa import magphase, pyin
label_desc: Use image node_id 25 for calling a global function with example usage: rms_volume_norm() and returns: wav