python实现语音识别

Python实现语音识别可以使用多种库和工具，其中最著名的是Google的Speech Recognition API和CMU Sphinx。以下是使用这两种工具的简单示例：

使用Google Speech Recognition API：

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))

使用CMU Sphinx：

import speech_recognition as sr

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

try:
    print("Sphinx thinks you said " + r.recognize_sphinx(audio))
except sr.UnknownValueError:
    print("Sphinx could not understand audio")
except sr.RequestError as e:
    print("Sphinx error; {0}".format(e))

需要注意的是，使用Google Speech Recognition API需要联网，而使用CMU Sphinx则需要安装相应的语音模型。此外，这只是语音识别的最基本示例，具体应用还需要根据实际需求进行相应的配置和调整。