Generating audio signals
Now that we know how audio signals work, let's see how we can generate one such signal. We can use the NumPy package to generate various audio signals. Since audio signals are mixtures of sinusoids, we can use this to generate an audio signal with some predefined parameters.
Create a new Python file and import the following packages:
import numpy as np
import matplotlib.pyplot as plt
from scipy.io.wavfile import write
Define the output audio file's name:
# Output file where the audio will be saved
output_file = 'generated_audio.wav'
Specify the audio parameters, such as duration, sampling frequency, tone frequency, minimum value, and maximum value:
# Specify audio parameters
duration = 4 # in seconds
sampling_freq = 44100 # in Hz
tone_freq = 784
min_val = -4 * np.pi
max_val = 4 * np.pi
Generate the audio signal using the defined parameters:
# Generate the audio signal
t = np.linspace...