Speech recognition is an interesting task that allows you to recognize the text behind the audio. With the use of voice recognition, we can also extract text from a video. In this article, I will walk you through how to extract text from videos using Python.
Extract Text From Videos using Python
In this section, I will take you through how to extract text from a video using Python. The first step is to download a video. After downloading the videos you need to install two Python libraries:
- Speech Recognition: pip install Speech Recognition
- moviepy: pip install moviepy
- After installing the above two Python libraries you can start with coding. Here is the complete Python program to convert a video into the text:
import speech_recognition as sr
import moviepy.editor as mp
from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip
num_seconds_video= 52*60
print("The video is {} seconds".format(num_seconds_video))
l=list(range(0,num_seconds_video+1,60))
diz={}
for i in range(len(l)-1):
ffmpeg_extract_subclip("videorl.mp4", l[i]-2*(l[i]!=0), l[i+1], targetname="chunks/cut{}.mp4".format(i+1))
clip = mp.VideoFileClip(r"chunks/cut{}.mp4".format(i+1))
clip.audio.write_audiofile(r"converted/converted{}.wav".format(i+1))
r = sr.Recognizer()
audio = sr.AudioFile("converted/converted{}.wav".format(i+1))
with audio as source:
r.adjust_for_ambient_noise(source)
audio_file = r.record(source)
result = r.recognize_google(audio_file)
diz['chunk{}'.format(i+1)]=resultAfter executing the above Python code you need to create a text document to store all the text that has been extracted from the video:
l_chunks=[diz['chunk{}'.format(i+1)] for i in range(len(diz))]
text='\n'.join(l_chunks)
with open('recognized.txt',mode ='w') as file:
file.write("Recognized Speech:")
file.write("\n")
file.write(text)
print("Finally ready!")
NOTE – In order to run the project of Python, you have to download Python IDLE or Pycharam. In the video I have explained how to download and install it.
Download and Install Python
Download and install Pycharm
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