[voice] add support for whisper-1 model

voice/openai/openai_voice.py

@@ -4,19 +4,21 @@ google voice service
 """
 import json
 import openai
+from config import conf
 from common.log import logger
 from voice.voice import Voice
 
 
 class OpenaiVoice(Voice):
     def __init__(self):
-        pass
+        openai.api_key = conf().get('open_ai_api_key')
 
     def voiceToText(self, voice_file):
+        logger.debug(
+            '[Openai] voice file name={}'.format(voice_file))
         file = open(voice_file, "rb")
         reply = openai.Audio.transcribe("whisper-1", file)
-        json_dict = json.loads(reply)
-        text = json_dict['text']
+        text = reply["text"]
         logger.info(
             '[Openai] voiceToText text={} voice file name={}'.format(text, voice_file))
         return text