为什么我的Python语音识别代码在后台音频监听期间没有调用回调函数？

Question

我试图在脚本运行时在后台收听音频我有这部分代码用于收听

import cv2
import mediapipe as mp
import pyautogui
import speech_recognition as sr
import time
r = sr.Recognizer()
m = sr.Microphone()
def callback(recognizer, audio):
    print('go')
    # received audio data, now we'll recognize it using Google Speech Recognition
    try:
        print("fun trig")

        # for testing purposes, we're just using the default API key
        # to use another API key, use `r.recognize_google(audio, key="GOOGLE_SPEECH_RECOGNITION_API_KEY")`
        # instead of `r.recognize_google(audio)`
        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()
# print(sr.Microphone.list_microphone_names())
with m as source:
    r.adjust_for_ambient_noise(source)  # we only need to calibrate once, before we start listening

# start listening in the background (note that we don't have to do this inside a `with` statement)
stop_listening = r.listen_in_background(m, callback)
# `stop_listening` is now a function that, when called, stops background listening

# do some unrelated computations for 5 seconds
for _ in range(50): time.sleep(0.1)   # we're still listening even though the main thread is doing other things

# calling this function requests that the background listener stop listening
stop_listening(wait_for_stop=False)

# do some more unrelated things
while True: 
    print('gone') 
    time.sleep(0.1)

过了一会儿，我得到“gone”打印，既没有打印 go，也没有打印“fun trig”，这意味着回调函数没有被调用

Answer 1

我运行了脚本并返回 python runonce.py 不相关的输入...Google语音识别认为您打招呼 Google 语音识别无法理解音频 Google 语音识别无法理解音频 Google 语音识别认为您打过招呼 Google 语音识别无法理解音频 谷歌语音识别认为你说你好你好你好你好你好

似乎没有正确调用回调 为什么？请帮忙

Answer 2

试试这个。告诉我是否有效？

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)

while True:
    input('unrelated input ...')