diff --git a/audio/background/aozhan_chaoming.mp3 b/audio/background/aozhan_chaoming.mp3 new file mode 100644 index 000000000..c26dacc1b Binary files /dev/null and b/audio/background/aozhan_chaoming.mp3 differ diff --git a/audio/background/aozhan_online.mp3 b/audio/background/aozhan_online.mp3 new file mode 100644 index 000000000..f9f1764a3 Binary files /dev/null and b/audio/background/aozhan_online.mp3 differ