Plotting a Noisy Sine Wave
Explore how to generate a sine wave, add noise, and filter it using Python and NumPy. Understand how to apply Fast Fourier Transform to analyze and plot noisy audio signals, gaining practical skills in audio data processing.
Adding noise to a sound wave
In this lesson, we’ll generate a sine wave, add noise to it, and then filter the noise. Let’s start with the code.
Frequency is the number of times a wave repeats a second.
frequency = 1000
noisy_freq = 50
num_samples = 48000
The sampling rate of the analog to digital conversion is:
sampling_rate = 48000.0