refine code. move azure tts to tool, refactor actions

metagpt/tools/azure_tts.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+@Time    : 2023/6/9 22:22
+@Author  : Leo Xiao
+@File    : azure_tts.py
+"""
+from azure.cognitiveservices.speech import AudioConfig, SpeechConfig, SpeechSynthesizer
+
+from metagpt.config import CONFIG
+
+
+class AzureTTS:
+    """https://learn.microsoft.com/zh-cn/azure/cognitive-services/speech-service/language-support?tabs=tts#voice-styles-and-roles"""
+
+    @classmethod
+    def synthesize_speech(cls, lang, voice, role, text, output_file):
+        subscription_key = CONFIG.get("AZURE_TTS_SUBSCRIPTION_KEY")
+        region = CONFIG.get("AZURE_TTS_REGION")
+        speech_config = SpeechConfig(subscription=subscription_key, region=region)
+
+        speech_config.speech_synthesis_voice_name = voice
+        audio_config = AudioConfig(filename=output_file)
+        synthesizer = SpeechSynthesizer(speech_config=speech_config, audio_config=audio_config)
+
+        # if voice=="zh-CN-YunxiNeural":
+        ssml_string = f"""
+            <speak version='1.0' xmlns='http://www.w3.org/2001/10/synthesis' xml:lang='{lang}' xmlns:mstts='http://www.w3.org/2001/mstts'>
+                <voice name='{voice}'>
+                    <mstts:express-as style='affectionate' role='{role}'>
+                        {text}
+                    </mstts:express-as>
+                </voice>
+            </speak>
+            """
+
+        synthesizer.speak_ssml_async(ssml_string).get()
+
+
+if __name__ == "__main__":
+    azure_tts = AzureTTS()
+    azure_tts.synthesize_speech("zh-CN", "zh-CN-YunxiNeural", "Boy", "Hello, I am Kaka", "output.wav")