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   源码介绍

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：一款完全本地化的，集语音识别、语义处理、语音合成的聊天机器人
：

import sys,os,re
	import time
	import aiml
	import wave
	import pyaudio
	import pocketsphinx
	import sphinxbase
	import serial
	# English speaking function
	def speak_en(outputString):
	print 'Roby: ' outputString
	# use festival for English tts speaking
	os.system('echo "' outputString '"|festival --tts')
	# Chinese speaking function
	def speak_cn(outputString):
	print 'Roby: ' outputString
	# use ekho for Chinese tts speaking
	os.system('ekho -s 150 -r -25 -a -30 "' outputString '"')
	# CMU Sphinx decoding function
	def decodeSpeech(wavfile,hmm,lm,dic):
	# Create a decoder with certain model
	config = pocketsphinx.Decoder.default_config()
	config.set_string('-hmm', hmm)
	config.set_string('-lm', lm)
	config.set_string('-dict', dic)
	speechRec = pocketsphinx.Decoder(config)
	wavFile = file(wavfile,'rb')
	wavFile.seek(44)
	speechRec.decode_raw(wavFile)
	# This used to fix a bug
	if speechRec.hyp() == None:
	return ''
	else:
	return speechRec.hyp().hypstr
	# function for regex checking
	def sameStr(string,regex):
	pattern = re.compile(regex)
	return pattern.match(string)
	if __name__ == '__main__':
	# this value is for my device. You must change it before running Roby
	ttyPath = '/dev/ttyUSB3'
	# Initial value for pyserial
	s = serial.Serial(ttyPath,115200,timeout=1)
	if s.isOpen():
	print s.portstr ' opened'
	else:
	print 'Can not open Serial Port'
	os._exit(0)
	# Initial value for pyaiml
	k = aiml.Kernel()
	k.learn("./aiml/*")
	k.respond("load aiml b")
	# initial value for pyaudio
	CHUNK = 1024
	FORMAT = pyaudio.paInt16
	CHANNELS = 1
	RATE = 16000
	RECORD_SECONDS = 3
	# start the loop
	speak_en('Roby is ready to work, sir')
	action = False
	mode = 'english'
	while True:
	fn = 'record.wav'
	p = pyaudio.PyAudio()
	stream = p.open(format=FORMAT, channels=CHANNELS, rate=RATE, input=True, frames_per_buffer=CHUNK)
	print 'recording ...'
	frames = []
	for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
	data = stream.read(CHUNK)
	frames.append(data)
	print 'done recording'
	stream.stop_stream()
	stream.close()
	p.terminate()
	wf = wave.open(fn, 'wb')
	wf.setnchannels(CHANNELS)
	wf.setsampwidth(p.get_sample_size(FORMAT))
	wf.setframerate(RATE)
	wf.writeframes(b''.join(frames))
	wf.close()
	wavfile = fn
	if wavfile == None:
	continue
	# the CMU Sphinx module, which you can change
	if mode == 'english':
	hmm = '/usr/local/share/pocketsphinx/model/hmm/en_US/hub4wsj_sc_8k'
	if not action:
	lm = './model/en/name_en.lm'
	dic = './model/en/name_en.dic'
	else:
	lm = './model/en/command_en.lm'
	dic = './model/en/command_en.dic'
	elif mode == 'chinese':
	hmm = '/usr/local/share/pocketsphinx/model/hmm/zh/tdt_sc_8k'
	if not action:
	lm = './model/zh/name_cn.lm'
	dic = './model/zh/name_cn.dic'
	else:
	lm = './model/zh/command_cn.lm'
	dic = './model/zh/command_cn.dic'
	recognised = decodeSpeech(wavfile,hmm,lm,dic)
	inputString = recognised
	print 'action = ' str(action)
	print 'You: ' inputString
	if inputString == '':
	continue
	if mode == 'english':
	if sameStr(inputString,'^ROBY.*'):
	speak_en('yes, sir')
	action = True
	continue
	elif mode == 'chinese':
	if sameStr(inputString,'^罗比.*'):
	speak_cn('是的，先生')
	action = True
	continue
	if action:
	action = False
	if mode == 'english':
	if sameStr(inputString,'^EXIT.*'):
	respond = k.respond(inputString)
	speak_en('Good bye, sir')
	os._exit(0)
	elif 'CHINESE MODE' in inputString:
	mode = 'chinese'
	speak_cn('已进入中文模式，先生')
	elif 'WRITE SERIAL PORT' in inputString:
	speak_en('write serial port, sir')
	s.write('hello, I am Roby\n')
	else:
	respond = k.respond(inputString)
	speak_en(respond)
	if sameStr(respond,'.*\?$'):
	action = True
	elif mode == 'chinese':
	if '英文模式' in inputString:
	mode = 'english'
	speak_en('returned to English mode')
	elif '几点' in inputString:
	speak_cn(time.strftime("%Y年%m月%d日，%H时%M分%S秒", time.localtime()))