Update app.py

app.py

@@ -5,7 +5,7 @@ from transformers import pipeline
 vqa_pipeline = pipeline("text2text-generation", model="microsoft/git-base-vqav2")
 
 # 加载文本到语音模型
-text_to_speech_pipeline = pipeline("text-to-speech", model="tts_model_name")
+text_to_speech_pipeline = pipeline("text-to-speech", model="microsoft/speecht5_tts")
 
 def main():
     st.title("Visual Question Answering with Text-to-Speech")