How to generate audio from a numpy array?

Question

I want to create \"heart rate monitor\" effect from a 2D array in numpy and want the tone to reflect the values in the array.

Answer 1

For the people coming here in 2016 scikits.audiolab doesn't really seem to work anymore. I was able to get a solution using sounddevice.

import numpy as np
import sounddevice as sd

fs = 44100
data = np.random.uniform(-1, 1, fs)
sd.play(data, fs)