修改合并mp3文件规则

src/main/java/com/mortals/xhx/tts/utils/AddMp3Util.java

@@ -44,7 +44,7 @@ public class AddMp3Util {
         }
 
         fos.close();
-        return outputPath;
+        return outputPath+"new.mp3";
     }
 
 }