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app.py

@@ -102,24 +102,25 @@ if question:
                     unsafe_allow_html=True
                 )
 
-    with st.spinner("Generating an audio..."):
-        audio_file = query_audio_tts({
-            "inputs": question,
-            "parameters": {
-                "vocoder_tag": "str_or_none(none)",
-                "threshold": 0.5,
-                "minlenratio": 0.0,
-                "maxlenratio": 10.0,
-                "use_att_constraint": False,
-                "backward_window": 1,
-                "forward_window": 3,
-                "speed_control_alpha": 1.0,
-                "noise_scale": 0.333,
-                "noise_scale_dur": 0.333
-            }
-        })
+                if generated_answer:
+                    with st.spinner("Generating an audio..."):
+                        audio_file = query_audio_tts({
+                            "inputs": generated_answer,
+                            "parameters": {
+                                "vocoder_tag": "str_or_none(none)",
+                                "threshold": 0.5,
+                                "minlenratio": 0.0,
+                                "maxlenratio": 10.0,
+                                "use_att_constraint": False,
+                                "backward_window": 1,
+                                "forward_window": 3,
+                                "speed_control_alpha": 1.0,
+                                "noise_scale": 0.333,
+                                "noise_scale_dur": 0.333
+                            }
+                        })
 
-        with open("out.flac", "wb") as f:
-            f.write(audio_file)
-            
-            st.audio("out.flac")
+                        with open("out.flac", "wb") as f:
+                            f.write(audio_file)
+                            
+                            st.audio("out.flac")