code: def load_audio(self, data_filename):
      waveform, sample_rate = torchaudio.load(
          data_filename, normalize=True
      )
      return waveform, sample_rate
  
file_path: audio/examples/avsr/data_prep/data/data_module.py
imports: import torch
  import torchaudio
  import torchvision
label_desc: Use image node_id 3 for calling the AVSRDataLoader obj's underlying member method code with example usage: obj.load_audio(data_filename) and returns: waveform,  sample_rate