Updated Sound Engine Commands (markdown)

1 files changed, 15 insertions, 0 deletions

diff --git a/Sound-Engine-Commands.md b/Sound-Engine-Commands.md
index b62610d..31ecd82 100644
--- a/Sound-Engine-Commands.md
+++ b/Sound-Engine-Commands.md
@@ -8,6 +8,21 @@ It should also be a place to suggest some good names for the commands (which sta
   
 Sets the octave for the folloing notes  
   
+# $d8: notetype byte (byte)  
+\1: Note length  
+\2: Initial Volume of envelope (0-0Fh) (0=No Sound)  
+\3: Envelope Direction (0=Decrease, 1=Increase)  
+\4: Number of envelope sweep (n: 0-7) (If zero, stop envelope operation.)  
+* usage:  
+  * notetype $c, $a, $0, $7
+    * following notes have length $c and start with volume=$a and slowly fade out  
+  * notetype $7, $2, $1, $4
+    * following notes have length $7 and start with volume=$2 and get louder a bit faster than in the previous example  
+  * notetype $a
+    * following notes have length $a (channel 4 has no volume envelope setting)
+  
+Sets the note length and (if we're not in channel 4) the volume envelope setting (see the command 'volenvelope') for the following notes.  
+  
 # $da: tempo word  
 \1: number (0 - (2^16-1))  
 * usage: