63 lines
1.3 KiB
Python
63 lines
1.3 KiB
Python
import pyaudio, time, threading
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import numpy as np
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from matplotlib import pyplot as plt
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import matplotlib.animation as animation
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CHUNKSIZE = 1024 # fixed chunk size
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# initialize portaudio
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p = pyaudio.PyAudio()
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info = p.get_host_api_info_by_index(0)
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numdevices = info.get('deviceCount')
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for i in range(0, numdevices):
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if (p.get_device_info_by_host_api_device_index(0, i).get('maxInputChannels')) > 0:
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print("Input Device id ", i, " - ", p.get_device_info_by_host_api_device_index(0, i).get('name'))
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stream = p.open(
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format=pyaudio.paInt16,
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channels=1,
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rate=44100,
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input=True,
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frames_per_buffer=CHUNKSIZE,
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input_device_index=18
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)
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plt.style.use('dark_background')
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graph_figure = plt.figure()
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graph_figure.canvas.set_window_title('blesleep')
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graph_axes = graph_figure.add_subplot(1, 1, 1)
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graph_data = {}
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def graph_animation(i):
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graph_axes.clear()
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graph_axes.plot(numpydata)
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ani = animation.FuncAnimation(graph_figure, graph_animation, interval=1000)
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def get_audio_data():
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global numpydata
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while True:
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data = stream.read(CHUNKSIZE)
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numpydata = np.frombuffer(data, dtype=np.int16)
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time.sleep(1)
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threading.Thread(target=get_audio_data).start()
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plt.show()
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# close stream
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stream.stop_stream()
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stream.close()
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p.terminate() |