diff --git a/assets/demo.wav b/assets/demo.wav
new file mode 100644
index 0000000..2d2d1cf
--- /dev/null
+++ b/assets/demo.wav
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d0b347d8ed0b2314c0d175fbdac79f6f3f91a6402bd7492ac5c860646a2ba309
+size 1454196