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- def update(frames):
- if self.stream.is_active():
- slice = self.left.get_sample_slice(frames, frames + self.window)
- self.stream.write(slice.raw_data)
- y = np.array(slice.get_array_of_samples()) / 1000000
- # yft = np.abs(np.fft.fft(y)) / self.window
- lf.set_ydata(y)
- return lf,
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