code: def background_noise(self, segment_size, noises):
      # https://arxiv.org/pdf/1608.04363.pdf
      noise = random.sample(noises, 1)[0]
  
      # Get noise segment
      if len(noise) >= segment_size:
          noise_segment = noise[:segment_size]
      else:
          noise_segment = noise.copy()
          for _ in range(math.ceil(segment_size / len(noise)) - 1):
              noise_segment = np.append(noise_segment, noise)
          noise_segment = noise_segment[:segment_size]
  
      return noise_segment
  
file_path: nlpaug/nlpaug/model/audio/noise.py
imports: import random
  import numpy
  import math
  from nlpaug.model.audio import Audio
label_desc: Use image node_id 4 for calling the Noise obj's underlying member method code with example usage: obj.background_noise(segment_size, noises) and returns: noise_segment