Python: NumPy Sine Wave
In this video, I show how to make an audio .wav file from a Python NumPy array.
The code for the tutorial is:
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| import numpy as np | |
| from scipy.io.wavfile import write | |
| sps = 44100 | |
| freq_hz = 440.0 | |
| duration_s = 3.0 | |
| t_samples = np.arange(sps * duration_s) | |
| waveform = np.sin(2 * np.pi * freq_hz * t_samples / sps) | |
| waveform *= 0.3 | |
| waveform_ints = np.int16(waveform * 32767) | |
| write('first_sine.wav', sps, waveform_ints) |
