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Generate and play a sound in Jupyter Notebook when then cell is run. Useful as notification when a long-running cell is done.
from IPython.lib.display import Audio
import numpy as np
framerate = 4410
play_time_seconds = 3
t = np.linspace(0, play_time_seconds, framerate*play_time_seconds)
audio_data = np.sin(2*np.pi*300*t) + np.sin(2*np.pi*240*t)
Audio(audio_data, rate=framerate, autoplay=True)
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