Need speech_recognition to capture system audio

Python Help
1

Hello I need help with my code. I just want it to automatically return any audio outputted by pc to be captured as source (e.i. captures to the audio of video that is playing on the computer), but I can’t figure out how to do so. Can anyone help?

import speech_recognition as sr

r = sr.Recognizer()

while(1):
    with sr.Microphone() as source:
        try:
            print("Talk")
            r.adjust_for_ambient_noise(source, duration=0.2)
            audio_text = r.listen(source)
            MyText = r.recognize_google(audio_text, language="en-US")
            MyText = MyText.lower()
            print(MyText)
        except:
                print("Sorry, I did not get that")