Update app.py

app.py

@@ -843,7 +843,7 @@ if __name__ == "__main__":
                                         choices=modes, value="pyopenjtalk-V2.3", label="TTS模式，合成少歌角色需要切换成 pyopenjtalk-V2.3-Katakana "
                                     )
                                 sentence_mode = gr.Dropdown(
-                                        choices=sentence_modes, value="sentence", label="文本合成模式"
+                                        choices=sentence_modes, value="paragraph", label="文本合成模式"
                                     )
                                 with gr.Accordion(label="扩展选项", open=False):
                                     inputFile = gr.UploadButton(label="txt文件输入")