Python SpeechRecognition实时检测单词

Question

使用我当前的SpeechRecognition程序，它会听我的句子，然后尝试识别它。

如果关键字是“ hello”，而我的句子是“ hello there etc ...”，我希望程序在听到“ hello”后立即调用一个函数，所以不要等到句子结尾并处理它。如何制作能够实时识别语音的程序？或者解决该问题的最佳方法是什么？

import speech_recognition as sr

r = sr.Recognizer()
r.pause_threshold = 1.0
r.phrase_threshold = 1.0
r.non_speaking_duration = 1.0

keyWord = 'hello'

with sr.Microphone() as source:
    print('Please start speaking..\n')
    while True:
        print('wait 3 seconds')
        r.adjust_for_ambient_noise(source, duration=3)
        print('go')
        audio = r.listen(source)
        try:
            text = r.recognize_google(audio)
            print(text)
            if keyWord.lower() in text.lower():
                print('Keyword detected in the speech.')
        except Exception as e:
            print('Please speak again.')

非常感谢您的帮助。