实例介绍
【实例简介】：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
【实例截图】：
【实例截图】：
【核心代码】
| 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())) |
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