update the UI default values

app.py

@@ -16,6 +16,7 @@ logger = logging.get_logger(__name__)
 
 
 
+DEFAULT_NUM_SPEAKERS = 1
 model_local_dir= str(cached_path("hf://microsoft/VibeVoice-1.5B"))
 #model_local_dir= "./ckpts/vibevoice"
 #snapshot_download(repo_id="microsoft/VibeVoice-1.5B", local_dir=model_local_dir)
@@ -59,8 +60,8 @@ def create_demo_interface(demo_instance: VibeVoiceDemo):
                 num_speakers = gr.Slider(
                     minimum=1,
                     maximum=4,
-                    value=2,
                     step=1,
+                    value=DEFAULT_NUM_SPEAKERS,
                     label="Number of Speakers",
                     elem_classes="slider-container"
                 )
@@ -80,12 +81,12 @@ def create_demo_interface(demo_instance: VibeVoiceDemo):
                         choices=available_speaker_names,
                         value=default_value,
                         label=f"Speaker {i+1}",
-                        visible=(i < 2),  # Initially show only first 2 speakers
+                        visible=(i < DEFAULT_NUM_SPEAKERS),  # Initially show only first 2 speakers
                         elem_classes="speaker-item"
                     )
                     speaker_selections.append(speaker)
 
-                with gr.Accordion("🎤 Upload Custom Voices", open=False):
+                with gr.Accordion("🎤 Upload Custom Voices", open=True):
                     upload_audio = gr.File(label="Upload Voice Samples", file_count="multiple", file_types=["audio"])
                     process_upload_btn = gr.Button("Add Uploaded Voices to Speaker Selection")
                 process_upload_btn.click(fn=process_and_refresh_voices, inputs=upload_audio, outputs=speaker_selections + [upload_audio])
@@ -258,10 +259,10 @@ Or paste text directly and it will auto-assign speakers.""",
                     else:
                         # Streaming state: update streaming audio only
                         if streaming_audio is not None:
-                            yield streaming_audio, gr.update(value=None, visible=True), log, streaming_visible, gr.update(visible=False), gr.update(visible=True)
+                            yield streaming_audio, None, log, streaming_visible, gr.update(visible=False), gr.update(visible=True)
                         else:
                             # No new audio, just update status
-                            yield None, gr.update(value=None, visible=True), log, streaming_visible, gr.update(visible=False), gr.update(visible=True)
+                            yield None, None, log, streaming_visible, gr.update(visible=False), gr.update(visible=True)
 
             except Exception as e:
                 error_msg = f"❌ A critical error occurred in the wrapper: {str(e)}"
@@ -280,7 +281,7 @@ Or paste text directly and it will auto-assign speakers.""",
         # Add a clear audio function
         def clear_audio_outputs():
             """Clear both audio outputs before starting new generation."""
-            return None, gr.update(value=None, visible=True)
+            return None, None
 
         # Connect generation button with streaming outputs
         generate_btn.click(