====== Töne mit Python ======
<code python toene.py>
import numpy as np
from scipy.io import wavfile as wavfile

sampling_rate = 44100                    ## Sampling Rate


def ton(frequenz, dauer):
	x = np.arange(int(dauer*sampling_rate))
	return np.sin(2 * np.pi * frequenz * x / sampling_rate)

def hinzu(lied, frequenz, dauer):
	return np.concatenate((lied, ton(frequenz, dauer)))

basis = 2000
zeit = 0.2
y = ton(basis,zeit)
y = hinzu(y, basis*2**(4/12),zeit)
y = hinzu(y, basis*2**(7/12),zeit)
y = hinzu(y, basis*2,zeit)
y = hinzu(y, basis*2**(7/12),zeit)
y = hinzu(y, basis*2**(4/12),zeit)
y = hinzu(y, basis,zeit)


wavfile.write("test.wav", sampling_rate, y)
</code>