语音识别返回＆＃x27;不好的请求＆＃x27;

Question

我使用语音识别和通过麦克风输入原始数据。而且，我也使用ensenizer_google对文本进行语音。但是它返回一个称为糟糕请求的错误。

import speech_recognition as sr

r = sr.Recognizer()
with sr.Microphone() as source:
    print("Say something!")
    audio = r.listen(source)

try:
    print("Google Speech Recognition thinks you said " + r.recognize_google(audio))
except sr.UnknownValueError:
    print("Google Speech Recognition could not understand audio")
except sr.RequestError as e:
    print("Could not request results from Google Speech Recognition service; {0}".format(e))

错误是：

Say something!
Could not request results from Google Speech Recognition service; recognition request failed: Bad Request