Python 语音识别在后台侦听不会给出错误或输出

Question

目前，我正在尝试让用户在用户按下使用 py qt 制作的按钮时让speech_recognition模块在后台侦听。我在类中有初始化和回调方法，但是当我尝试听麦克风时，它似乎没有注册任何东西，甚至没有输出错误。

import time
import speech_recognition as sr
def callback(recognizer, audio):
try:
print("Google Speech Recognition thinks you said " + recognizer.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))

r = sr.Recognizer()
m = sr.Microphone()
with m as source:
r.adjust_for_ambient_noise(source)  
stop_listening = r.listen_in_background(m, callback)
for _ in range(50): time.sleep(0.1)  
stop_listening(wait_for_stop=False)
while True: time.sleep(0.1)  ```
i want data to be sent the response as soon as it hears a word.  the response need to be printed in the console

Answer 1

使用以下命令定义默认麦克风：

m = sr.Microphone(0)

这为我解决了无响应问题，似乎将麦克风索引强制为默认值，即使 sr 应该自动选择它。