diff --git a/chuck/README.md b/chuck/README.md
index d8a6ba9..34397bc 100644
--- a/chuck/README.md
+++ b/chuck/README.md
@@ -1,5 +1,9 @@
 # trucs en ChucK
 
+Attention, il faut parfois utiliser l'option `--silent` 
+pour lancer Chuck sans connexion audio.
+
+
 ## dessiner.ck
 
 ## pouet.ck
diff --git a/chuck/dessiner.ck b/chuck/dessiner.ck
index 2c4b465..53615d0 100644
--- a/chuck/dessiner.ck
+++ b/chuck/dessiner.ck
@@ -7,7 +7,7 @@
  *
  */
 
-9000		=> int OSCPort;
+7777		=> int OSCPort;
 31000.0		=> float Amplitude;
 
 OscOut xmit;
@@ -15,13 +15,7 @@ float	dx, dy;
 
 xmit.dest("localhost", OSCPort);
 
-// ---- clear the screen
-xmit.start("/joystick/b");
-50 => xmit.add;	1 => xmit.add;
-xmit.send();
-xmit.start("/joystick/b");
-50 => xmit.add;	0 => xmit.add;
-xmit.send();
+clear_the_screen();
 
 for (0 => int foo; foo<25800; foo++) {
 	<<< foo >>>;
@@ -34,7 +28,15 @@ for (0 => int foo; foo<25800; foo++) {
 	Std.ftoi(dy) => xmit.add;
 	xmit.send();
 
-	0.03::second => now;
-
+	0.02::second => now;
 	}
 
+fun void clear_the_screen()
+{
+xmit.start("/joystick/b");
+50 => xmit.add;	1 => xmit.add;
+xmit.send();
+xmit.start("/joystick/b");
+50 => xmit.add;	0 => xmit.add;
+xmit.send();
+}
diff --git a/chuck/midi2osc.ck b/chuck/midi2osc.ck
index 963c235..eed519e 100644
--- a/chuck/midi2osc.ck
+++ b/chuck/midi2osc.ck
@@ -5,6 +5,29 @@
  *	nouveau Rural Art System 2021 - TerreBlanque 
 */
 
+MidiIn		input;
+MidiMsg		msg;
+
+1 => int port;			// please explain
+
+if (!input.open(port)) {
+	<<< "erreur open" >>>;
+	me.exit();
+	}
+
+// print out device that was opened
+<<< "MIDI device:", input.num(), " -> ", input.name() >>>;
+
+// infinite loop
+while (1)	{
+	input => now;
+
+	while ( input.recv(msg) ) {
+		<<< msg.data1, msg.data2, msg.data3 >>>;
+		}
 
 
 
+	}
+
+
diff --git a/chuck/pouet.ck b/chuck/pouet.ck
index 9750b70..943b073 100644
--- a/chuck/pouet.ck
+++ b/chuck/pouet.ck
@@ -26,14 +26,14 @@ while( true ) {
 		msg.getInt(1) => value;
         	<<< "got (via ", InPort,")\tb", button, "\tv", value >>>;
 		if (1 == value) {	/* button down */
-			Std.mtof(base+(button)) => sl.freq;
+			Std.mtof(base+(button))    => sl.freq;
 			Std.mtof(base+12+(button)) => sr.freq;
 			1 => envl.keyOn => envr.keyOn;
 			}
 		else	{
 			1 => envl.keyOff => envr.keyOff;
 			}
-		// 0.2::second => now;		
+		0.2::second => now;
 		}
 	}
 	
diff --git a/chuck/zwouit.ck b/chuck/zwouit.ck
index d207d81..b605afd 100644
--- a/chuck/zwouit.ck
+++ b/chuck/zwouit.ck
@@ -11,13 +11,14 @@ SawOsc sr 	=>  dac.right;
 
 OscIn	oscin;
 OscMsg	msg;
-
 InPort => oscin.port;
 oscin.addAddress( "/joystick/xy, ii" );
 
 int x, y;
 55 => int base;
 
+0.5 => sl.gain => sr.gain;
+
 <<< "listening on port", InPort >>>;
 
 while( true ) {
@@ -25,9 +26,17 @@ while( true ) {
 	while ( oscin.recv(msg) ) { 
 		msg.getInt(0) => x;
 		msg.getInt(1) => y;
-        	<<< "got (via ", InPort,")  ", x, y >>>;
+		<<< "got (via ", InPort,")  ", x, y >>>;
+		x => sl.freq;
+		y => sr.freq;
 		}
+
 	}
 	
 /* made in doubledragon2 by tTh */
 
+/* --------------------------------------------------------
+                      conversion coordonnées vers frequence */
+
+
+