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import numpy as np
import pyaudio
import wave
import matplotlib.pyplot as plt
import matplotlib.animation as animation

data_type = 16 # mapped to 2 ** 15 possible values

FORMAT = pyaudio.paInt16
CHANNELS = 2
RATE = 44100
CHUNK = 1024

audio = pyaudio.PyAudio()

stream = audio.open(format=FORMAT, channels=CHANNELS,
                rate=RATE, input=True,
                frames_per_buffer=CHUNK)

def init():
    line.set_visible(False)
    return line,

fig, ax = plt.subplots()
line, = ax.plot(0, 0, color='DarkViolet')

def update(frame, line):
    if frame==1:
        line.set_visible(True)
    data = stream.read(CHUNK)
    decoded = np.fromstring(data, dtype=np.int16)
    sound = decoded #/ (2.0 ** (data_type - 1))
    t=np.arange(sound.size)
    line.set_data(t, sound)
    line.axes.axis([0, sound.size, -7000, 7000])
    return line,

ani = animation.FuncAnimation(fig, update, init_func=init, fargs=[line],
                              interval=25, blit=True)

plt.show()


    

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