Swap news.wav example for neutral narration clip

app.py

@@ -486,7 +486,7 @@ video chunk in a **single sampling step** while keeping identity stable over lon
 
         gr.Examples(
             examples=[
-                ["examples/portrait.jpg", "examples/news.wav"],
+                ["examples/portrait.jpg", "examples/narration.wav"],
                 ["examples/girl.png", "examples/podcast_sichuan.wav"],
             ],
             inputs=[portrait_image, speech_audio],
@@ -497,10 +497,12 @@ video chunk in a **single sampling step** while keeping identity stable over lon
         )
 
         gr.Markdown(
-            "Example assets: portrait + news clip from the "
+            "Example assets: portrait from the "
             "[LeapTalk](https://github.com/zhangrongxiang/LeapTalk) repository, portrait + podcast "
             "clip from [SoulX-FlashHead](https://github.com/Soul-AILab/SoulX-FlashHead) "
-            "(both Apache-2.0). Audio clips were trimmed to 9 seconds."
+            "(both Apache-2.0). The narration clip is public-domain audiobook narration from "
+            "[LibriSpeech](https://www.openslr.org/12) (LibriVox, CC0 / public domain). "
+            "Audio clips were trimmed to a few seconds."
         )
 
     gr.on(