diff --git a/pdlua/examples/sig-example/lua_sig-test.pd b/pdlua/examples/sig-example/lua_sig-test.pd
index de407f3..0bc897d 100644
--- a/pdlua/examples/sig-example/lua_sig-test.pd
+++ b/pdlua/examples/sig-example/lua_sig-test.pd
@@ -1,27 +1,24 @@
 #N canvas 491 594 588 300 12;
-#X obj 84 148 lua_sig;
+#X obj 84 178 lua_sig;
 #X floatatom 162 52 5 0 0 0 - - - 0;
 #X floatatom 232 52 5 0 0 0 - - - 0;
 #N canvas 0 50 450 250 (subpatch) 0;
-#X array scope 4800 float 1;
-#A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
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-#X coords 0 1 4800 -1 200 140 1;
+#X array scope 4800 float 0;
+#X coords 0 1 4799 -1 200 140 1 0 0;
 #X restore 316 74 graph;
-#X obj 218 149 tgl 20 0 empty empty empty 0 -10 0 12 #fcfcfc #000000 #000000 0 1;
-#X obj 218 174 metro 100;
+#X obj 218 179 tgl 20 0 empty empty empty 0 -10 0 12 #fcfcfc #000000 #000000 0 1;
+#X obj 218 204 metro 100;
 #X floatatom 85 22 5 0 0 0 - - - 0;
-#X obj 83 203 tabwrite~ scope;
-#X obj 35 203 dac~;
+#X obj 83 233 tabwrite~ scope;
+#X obj 35 233 dac~;
 #X obj 85 52 osc~ 110;
 #X obj 162 101 line;
 #X obj 232 101 line;
 #X msg 162 76 \$1 50 1;
 #X msg 232 76 \$1 50 1;
 #X obj 232 21 tgl 20 0 empty empty empty 0 -10 0 12 #fcfcfc #000000 #000000 0 0.1;
+#X msg 162 132 freq \$1;
+#X msg 232 131 amp \$1;
 #X connect 0 0 7 0;
 #X connect 0 0 8 0;
 #X connect 0 0 8 1;
@@ -31,8 +28,10 @@
 #X connect 5 0 7 0;
 #X connect 6 0 9 0;
 #X connect 9 0 0 0;
-#X connect 10 0 0 1;
-#X connect 11 0 0 2;
+#X connect 10 0 15 0;
+#X connect 11 0 16 0;
 #X connect 12 0 10 0;
 #X connect 13 0 11 0;
 #X connect 14 0 2 0;
+#X connect 15 0 0 0;
+#X connect 16 0 0 0;
diff --git a/pdlua/examples/sig-example/lua_sig.pd_lua b/pdlua/examples/sig-example/lua_sig.pd_lua
index 928e191..dec69c4 100644
--- a/pdlua/examples/sig-example/lua_sig.pd_lua
+++ b/pdlua/examples/sig-example/lua_sig.pd_lua
@@ -1,7 +1,7 @@
 local lua_sig = pd.Class:new():register("lua_sig")
 
 function lua_sig:initialize(sel, atoms)
-    self.inlets = {SIGNAL, DATA, DATA}
+    self.inlets = {SIGNAL}
     self.outlets = {SIGNAL}
     self.phase = 0
     self.freq = 220
@@ -9,29 +9,34 @@ function lua_sig:initialize(sel, atoms)
     return true
 end
 
-function lua_sig:in_2_float(freq)
-    self.freq = freq
+-- dsp method is called when processing is about to start
+function lua_sig:dsp(samplerate, blocksize)
+    self.samplerate = samplerate
 end
 
-function lua_sig:in_3_float(amp)
-    self.amp = amp
+-- message to set frequency...
+function lua_sig:in_1_freq(atoms)
+    self.freq = atoms[1]
 end
 
--- dsp method is called when processing is about to start
-function lua_sig:dsp(samplerate, blocksize)
-    self.samplerate = samplerate
+-- ... and amplitude.
+function lua_sig:in_1_amp(atoms)
+    self.amp = atoms[1]
 end
 
 -- perform method gets called with a table for each signal inlet
 -- you must return a table for each signal outlet
 function lua_sig:perform(in1)
-    local frequency = self.freq
-    local amplitude = self.amp
+    local frequency = self.freq   -- frequency of the sine wave in Hz
+    local amplitude = self.amp    -- amplitude of the sine wave (0 to 1)
 
+    -- Calculate the angular frequency (in radians per sample)
     local angular_freq = 2 * math.pi * frequency / self.samplerate
 
     -- Loop through each sample index
     for i = 1, #in1 do
+       -- NOTE: We ignore the input signal in this example. Try multiplying by
+       -- in1[i] for an amplitude/ring modulation effect.
         in1[i] = amplitude * math.sin(self.phase)
         self.phase = self.phase + angular_freq
         if self.phase >= 2 * math.pi then