我怎样才能实时获取实习电脑音频？

Question

好的，所以我想做一个程序，实时收听我的电脑音频，当它说一些我定义为重要的单词时，它会提醒我。。。（代码是python的），我使用了语音识别

我尝试了此代码，但它只获得了我的麦克风音频：

import speech_recognition as sr
from playsound import playsound

def capt():
        r = sr.Recognizer()
        final = ''

        cont = 0

        print(':')

        while True:
            if cont == 10:
                final = ''
            with sr.Microphone() as fonte:
                audio = r.listen(fonte)
                cont = 0
                try:
                    text = r.recognize_google(audio, language= 'pt-BR')
                    final += f' {text}'
                except:
                    print('Error')
                else: 
                    print('✔️')
            div = final.split(' ')
            if 'Special' in div:
                playsound("som/alarme.mp3") # it plays an alarm
                final = ''
                div = ''


            cont += 1```