diff --git a/sound/bump.wav b/sound/bump.wav
deleted file mode 100644
index d43298c..0000000
Binary files a/sound/bump.wav and /dev/null differ
diff --git a/sound/zhanbai.wav b/sound/zhanbai.wav
deleted file mode 100644
index 2d305f9..0000000
Binary files a/sound/zhanbai.wav and /dev/null differ