Update main.ts

main.ts

@@ -32,7 +32,7 @@ async function synthesizeSpeech(model: string, voice: string, text: string) {
         voiceName = "zh-CN-YunxiaNeural";
         break;
       case "onyx":
-        voiceName = "zh-TW-YunyangNeural";
+        voiceName = "zh-CN-YunyangNeural";
         break;
       default:
         voiceName = "zh-CN-XiaoyiNeural";