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How to plot a wav file using Matplotlib?
To plot a .wav file using matplotlib, we can take following the steps −
To read a .wav file, we can use the read() method.
After reading the .wav file, we will get a tuple. At the 0 th index, rate would be there and at the 1st index, array sample data.
Use the plot() method to plot the .wav file.
Set y and x labels using ylabel and xlabel with “Amplitude” and “Time” label, respectively.
To display the figure, use the show() method.
Example
from scipy.io.wavfile import read
import matplotlib.pyplot as plt
plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True
input_data = read("my_audio.wav")
audio = input_data[1]
plt.plot(audio[0:1024])
plt.ylabel("Amplitude")
plt.xlabel("Time")
plt.show()Output
Updated on: 09-Apr-2021
5K+ Views
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