code: def manipulate(self, data, start_pos, end_pos, noise):
      noise = self.pad(data[start_pos:end_pos], noise)
  
      return np.concatenate(
          (
              data[:start_pos],
              (data[start_pos:end_pos] + noise),
              data[end_pos:],
          ),
          axis=0,
      ).astype(type(data[0]))
  
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 6 for calling the Noise obj's underlying member method code with example usage: obj.manipulate(data, start_pos, end_pos, noise) and returns: np