diff --git a/Audio-modes-demystified.md b/Audio-modes-demystified.md
index f3d2e8a..273abd9 100644
--- a/Audio-modes-demystified.md
+++ b/Audio-modes-demystified.md
@@ -74,6 +74,8 @@ XG3 and below use DSound. GITADORA and above will use exclusive WASAPI.
 
 For Guitar, you'll probably want to use cab type 3 (white cab, single guitar) so that you get guitar sounds from both speakers. In other cab types, they have two guitars, so you only hear guitar sounds from one speaker. Unless you want to play two player guitar, of course.
 
+You'll most likely want to apply the 2 channel audio patch by setting `-2ch` option.
+
 ## Popn
 
 All versions of Popn use DirectSound.