import speech_recognition as sr

r=sr.Recognizer()
r.pause_threshold=0.7
r.energy_threshold=400

while(1):
    with sr.Microphone () as source:
            audio=r.listen(source)
            message=str(audio)

    try:
        print(r.recognize_google(audio))
    except sr.UnknownValueError:
        print("We could not understand audio please speak again")