Update app.py

app.py

@@ -10,15 +10,17 @@ client = Client("ResembleAI/Chatterbox", hf_token)
 
 # Define the function to call the model and return the generated audio file
 def generate_tts_audio(text_input, audio_prompt_url, exaggeration_input, temperature_input, seed_num_input, cfgw_input):
-    print("sending request")
-    if audio_prompt_url.strip():
-        audio_prompt = handle_file(audio_prompt_url)
-    else:
-        audio_prompt = None
     try:
+        print("sending request")
+        # Only process the audio prompt if the field is not empty
+        if audio_prompt_url and audio_prompt_url.strip():
+            audio_prompt = handle_file(audio_prompt_url)
+        else:
+            audio_prompt = None  # This is the KEY change
+
         result = client.predict(
             text_input=text_input,
-            audio_prompt_path_input=handle_file(audio_prompt_url),
+            audio_prompt_path_input=audio_prompt,
             exaggeration_input=exaggeration_input,
             temperature_input=temperature_input,
             seed_num_input=seed_num_input,
@@ -26,11 +28,17 @@ def generate_tts_audio(text_input, audio_prompt_url, exaggeration_input, tempera
             api_name="/generate_tts_audio"
         )
         print("API Result:", result)
-        return result['filepath'] if 'filepath' in result else None
+        audio_path = result.get('filepath', None)
+        if audio_path and os.path.exists(audio_path) and os.path.getsize(audio_path) > 1000:
+            return audio_path
+        else:
+            print("No valid audio generated.")
+            return None  # Or return "No valid audio generated."
     except Exception as e:
         print(f"An error occurred: {e}")
         return None
 
+
 # Create the Gradio interface
 interface = gr.Interface(
     fn=generate_tts_audio,