diff --git a/.config/mpv/input.conf b/.config/mpv/input.conf
new file mode 100644
index 0000000..ab6fbdd
--- /dev/null
+++ b/.config/mpv/input.conf
@@ -0,0 +1,2 @@
+# Makes speech in the older DVDs louder.
+F1 af toggle "lavfi=[loudnorm=I=-16]"