Created
March 31, 2018 02:55
-
-
Save akey7/725b2b7b68482525fff6620cb8cf05d4 to your computer and use it in GitHub Desktop.
Generate a .wav sound file from a NumPy array.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import numpy as np | |
| from scipy.io.wavfile import write | |
| # Samples per second | |
| sps = 44100 | |
| # Frequency / pitch of the sine wave | |
| freq_hz = 440.0 | |
| # Duration | |
| duration_s = 5.0 | |
| # NumpPy magic | |
| each_sample_number = np.arange(duration_s * sps) | |
| waveform = np.sin(2 * np.pi * each_sample_number * freq_hz / sps) | |
| waveform_quiet = waveform * 0.3 | |
| waveform_integers = np.int16(waveform_quiet * 32767) | |
| # Write the .wav file | |
| write('first_sine_wave.wav', sps, waveform_integers) |
try soundfile.read('link/to/wav/file.wav')
It will return a numpy array and sample_rate
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Single channel would be enough for me