,

app.py

@@ -39,7 +39,7 @@ def preprocess_text(text: str) -> str:
     # 若首字不是标点，则自动加逗号
     if not text or text[0] in "，。！？,.!?":
         return text
-    return "，" + text
+    return "，，" + text
 
 class TTSRequest(BaseModel):
     text: str