diff --git a/projects/demos/musictracker.usm b/projects/demos/musictracker.usm
index c4184a9..2b3e28b 100644
--- a/projects/demos/musictracker.usm
+++ b/projects/demos/musictracker.usm
@@ -25,10 +25,10 @@
 |00 @System [ &vector $2 &pad $6 &r $2 &g $2 &b $2 ]
 |10 @Console [ &vector $2 &pad $6 &char $1 &byte $1 &short $2 &string $2 ]
 |20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 ]
-|30 @Audio0 [ &vector $2 &output $1 &pad $5 &adsr $2 &len $2 &addr $2 &volume $1 &pitch $1 ]
-|40 @Audio1 [ &vector $2 &output $1 &pad $5 &adsr $2 &len $2 &addr $2 &volume $1 &pitch $1 ]
-|50 @Audio2 [ &vector $2 &output $1 &pad $5 &adsr $2 &len $2 &addr $2 &volume $1 &pitch $1 ]
-|60 @Audio3 [ &vector $2 &output $1 &pad $5 &adsr $2 &len $2 &addr $2 &volume $1 &pitch $1 ]
+|30 @Audio0 [ &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &len $2 &addr $2 &volume $1 &pitch $1 ]
+|40 @Audio1 [ &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &len $2 &addr $2 &volume $1 &pitch $1 ]
+|50 @Audio2 [ &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &len $2 &addr $2 &volume $1 &pitch $1 ]
+|60 @Audio3 [ &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &len $2 &addr $2 &volume $1 &pitch $1 ]
 |80 @Controller [ &vector $2 &button $1 &key $1 ]
 |90 @Mouse [ &vector $2 &x $2 &y $2 &state $1 &chord $1 ]
 |a0 @File [ &vector $2 &success $2 &offset $2 &pad $2 &name $2 &length $2 &load $2 &save $2 ]
diff --git a/projects/demos/piano.usm b/projects/demos/piano.usm
index b0c2660..07d4bb8 100644
--- a/projects/demos/piano.usm
+++ b/projects/demos/piano.usm
@@ -12,11 +12,11 @@
 
 |00 @System     [ &vector $2 &pad      $6 &r      $2 &g     $2 &b      $2 ]
 |10 @Console    [ &pad    $8 &char     $1 &byte   $1 &short $2 &string $2 ]
-|20 @Screen     [ &vector $2 &width    $2 &height $2 &pad   $2 &x      $2 &y     $2 &addr $2 &color $1 ]
-|30 @Audio0     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|40 @Audio1     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|50 @Audio2     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|60 @Audio3     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|20 @Screen     [ &vector $2 &width    $2 &height $2 &pad   $2 &x      $2 &y      $2 &addr $2 &color $1 ]
+|30 @Audio0     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
+|40 @Audio1     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
+|50 @Audio2     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
+|60 @Audio3     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
 |70 @Midi       [ &vector $2 &channel  $1 &note   $1 &velocity $1 ]
 |80 @Controller [ &vector $2 &button   $1 &key    $1 ]
 |90 @Mouse      [ &vector $2 &x        $2 &y      $2 &state $1 &chord  $1 ]
diff --git a/projects/examples/blank.usm b/projects/examples/blank.usm
index ecf5d45..93199e5 100644
--- a/projects/examples/blank.usm
+++ b/projects/examples/blank.usm
@@ -2,13 +2,13 @@
 
 ( devices )
 
-|00 @System     [ &vector $2 &pad      $6 &r      $2 &g     $2 &b      $2 ]
+|00 @System     [ &vector $2 &wst      $1 &rst    $1 &pad   $4 &r      $2 &g     $2 &b      $2 ]
 |10 @Console    [ &pad    $8 &char     $1 &byte   $1 &short $2 &string $2 ]
-|20 @Screen     [ &vector $2 &width    $2 &height $2 &pad   $2 &x      $2 &y     $2 &addr   $2 &color $1 ]
-|30 @Audio0     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|40 @Audio1     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|50 @Audio2     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|60 @Audio3     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|20 @Screen     [ &vector $2 &width    $2 &height $2 &pad   $2 &x      $2 &y      $2 &addr  $2 &color $1 ]
+|30 @Audio0     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|40 @Audio1     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|50 @Audio2     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|60 @Audio3     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
 |70 @Midi       [ &vector $2 &channel  $1 &note   $1 &velocity $1 ]
 |80 @Controller [ &vector $2 &button   $1 &key    $1 ]
 |90 @Mouse      [ &vector $2 &x        $2 &y      $2 &state $1 &chord $1 ]
diff --git a/projects/software/enfer.usm b/projects/software/enfer.usm
index e6d0522..ad59d99 100644
--- a/projects/software/enfer.usm
+++ b/projects/software/enfer.usm
@@ -18,11 +18,11 @@
 
 |00 @System     [ &vector $2 &pad      $6 &r      $2 &g     $2 &b      $2 ]
 |10 @Console    [ &pad    $8 &char     $1 &byte   $1 &short $2 &string $2 ]
-|20 @Screen     [ &vector $2 &width    $2 &height $2 &pad   $2 &x      $2 &y     $2 &addr   $2 &color $1 ]
-|30 @Audio0     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|40 @Audio1     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|50 @Audio2     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
-|60 @Audio3     [ &vector $2 &output   $1 &pad    $5 &adsr  $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|20 @Screen     [ &vector $2 &width    $2 &height $2 &pad   $2 &x      $2 &y      $2 &addr  $2 &color  $1 ]
+|30 @Audio0     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|40 @Audio1     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|50 @Audio2     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
+|60 @Audio3     [ &vector $2 &position $2 &output $1 &pad   $3 &adsr   $2 &length $2 &addr  $2 &volume $1 &pitch $1 ]
 |70 @Midi       [ &vector $2 &channel  $1 &note   $1 &velocity $1 ]
 |80 @Controller [ &vector $2 &button   $1 &key    $1 ]
 |90 @Mouse      [ &vector $2 &x        $2 &y      $2 &state $1 &chord $1 ]
diff --git a/src/emulator.c b/src/emulator.c
index 1f48199..9c326a9 100644
--- a/src/emulator.c
+++ b/src/emulator.c
@@ -252,9 +252,12 @@ static void
 audio_talk(Device *d, Uint8 b0, Uint8 w)
 {
 	Apu *c = &apu[d - devaudio0];
-	if(!w && b0 == 0x2) {
-		d->dat[0x2] = apu_get_vu(c);
-	} else if(w && b0 == 0xf) {
+	if(!w) {
+		if(b0 == 0x2)
+			mempoke16(d->dat, 0x2, c->i);
+		else if(b0 == 0x4)
+			d->dat[0x4] = apu_get_vu(c);
+	} else if(b0 == 0xf) {
 		SDL_LockAudioDevice(audio_id);
 		c->len = mempeek16(d->dat, 0xa);
 		c->addr = &d->mem[mempeek16(d->dat, 0xc)];