[voice] add text to voice

voice/google/google_voice.py

@@ -4,23 +4,47 @@ google voice service
 """
 
 import subprocess
-import speech_recognition 
+import time
+import speech_recognition
+import pyttsx3
+from common.log import logger
 from voice.voice import Voice
 
+
 class GoogleVoice(Voice):
+    tmpFilePath = './tmp/'
     recognizer = speech_recognition.Recognizer()
+    engine = pyttsx3.init()
 
     def __init__(self):
-        pass
+        # 语速
+        self.engine.setProperty('rate', 125)
+        # 音量
+        self.engine.setProperty('volume', 1.0)
+        # 0为男声，1为女声
+        voices = self.engine.getProperty('voices')
+        self.engine.setProperty('voice', voices[1].id)
 
     def voiceToText(self, voice_file):
         new_file = voice_file.replace('.mp3', '.wav')
-        subprocess.call('ffmpeg -i ' + voice_file + ' -acodec pcm_s16le -ac 1 -ar 16000 ' + new_file, shell=True)
+        subprocess.call('ffmpeg -i ' + voice_file +
+                        ' -acodec pcm_s16le -ac 1 -ar 16000 ' + new_file, shell=True)
         with speech_recognition.AudioFile(new_file) as source:
             audio = self.recognizer.record(source)
         try:
-            return self.recognizer.recognize_google(audio, language='zh-CN')
+            text = self.recognizer.recognize_google(audio, language='zh-CN')
+            logger.info(
+                '[Google] voiceToText text={} voice file name={}'.format(text, voice_file))
+            return text
         except speech_recognition.UnknownValueError:
             return "抱歉，我听不懂。"
         except speech_recognition.RequestError as e:
             return "抱歉，无法连接到 Google 语音识别服务；{0}".format(e)
+
+    def textToVoice(self, text):
+        textFile = self.tmpFilePath + '语音回复_' + str(int(time.time())) + '.mp3'
+        self.engine.save_to_file(text, textFile)
+        self.engine.runAndWait()
+        logger.info(
+            '[Google] textToVoice text={} voice file name={}'.format(text, textFile))
+        return textFile

voice/voice.py

@@ -8,3 +8,9 @@ class Voice(object):
         Send voice to voice service and get text
         """
         raise NotImplementedError
+
+    def textToVoice(self, text):
+        """
+        Send text to voice service and get voice
+        """
+        raise NotImplementedError