Python语音识别库-总是听吗? [英] Python Voice Recognition Library - Always Listen?

问题描述

我最近一直在使用python中的语音识别库来启动应用程序.我打算最终使用Raspberry Pi GPIO将库用于语音激活的家庭自动化.

I've recently been working on using a speech recognition library in python in order to launch applications. I Intend to ultimately use the library for voice activated home automation using the Raspberry Pi GPIO.

我正在工作，它可以检测我的声音并启动应用程序.问题在于它似乎挂在我说的一个词上(例如，我说互联网，它会无限次启动chrome)

I have this working, it detects my voice and launches application. The problem is that it seems to hang on the one word I say (for example, I say internet and it launches chrome an infinite number of times)

从我看到的while循环来看，这是不寻常的行为.我不知道如何阻止它循环.我是否需要做一些循环工作才能使其正常工作?请参见下面的代码.

This is unusual behavior from what I have seen of while loops. I cant figure out how to stop it looping. Do I need to do something out of the loop to make it work properly? Please see the code below.

http://pastebin.com/auquf1bR

import pyaudio,os
import speech_recognition as sr
r = sr.Recognizer()
with sr.Microphone() as source:
        audio = r.listen(source)

def excel():
        os.system("start excel.exe")

def internet():
        os.system("start chrome.exe")

def media():
        os.system("start wmplayer.exe")

def mainfunction():
        user = r.recognize(audio)
        print(user)
        if user == "Excel":
                excel()
        elif user == "Internet":
                internet()
        elif user == "music":
                media()
while 1:
        mainfunction()

推荐答案

以防万一，这是有关如何在Pocketsphinx中连续侦听关键字的示例，这比连续向Google发送音频要容易得多. 而且您可以找到更灵活的解决方案.

Just in case, here is the example on how to listen continuously for keyword in pocketsphinx, this is going to be way easier than to send audio to google continuously. And you could have way more flexible solution.

import sys, os, pyaudio
from pocketsphinx import *

modeldir = "/usr/local/share/pocketsphinx/model"
# Create a decoder with certain model
config = Decoder.default_config()
config.set_string('-hmm', os.path.join(modeldir, 'hmm/en_US/hub4wsj_sc_8k'))
config.set_string('-dict', os.path.join(modeldir, 'lm/en_US/cmu07a.dic'))
config.set_string('-keyphrase', 'oh mighty computer')
config.set_float('-kws_threshold', 1e-40)

decoder = Decoder(config)
decoder.start_utt('spotting')

stream = p.open(format=pyaudio.paInt16, channels=1, rate=16000, input=True, frames_per_buffer=1024)
stream.start_stream()        

while True:
    buf = stream.read(1024)
    decoder.process_raw(buf, False, False)
    if decoder.hyp() != None and decoder.hyp().hypstr == 'oh mighty computer':
        print "Detected keyword, restarting search"
        decoder.end_utt()
        decoder.start_utt('spotting')

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