code: def animate(i):
      # binary data
      data = stream.read(CHUNK)
      # Open in numpy as a buffer
      data_np = np.frombuffer(data, dtype="h")
  
      # Update the line graph
      line.set_ydata(data_np)
  
      # compute FFT and update line
      yf = fft(data_np)
      # The fft will return complex numbers, so np.abs will return their magnitude
  
      line_fft.set_ydata(np.abs(yf[0:CHUNK]) / (512 * CHUNK))
  
      # Update the number of frames
      count[0] += 1
  
file_path: audio-spectrum-analyzer/spec_anim.py
imports: import matplotlib
  import pyaudio
  import os
  import struct
  import numpy
  import matplotlib.pyplot
  from matplotlib import animation
  from scipy.fftpack import fft
  import time
  from tkinter import TclError
label_desc: Use image node_id 2 for calling a global function with example usage: animate(i) without return types