diff --git a/src/effect_base.cpp b/src/effect_base.cpp
index b9fc84d..0cb69d3 100644
--- a/src/effect_base.cpp
+++ b/src/effect_base.cpp
@@ -1,3 +1,7 @@
+/* 
+ * Base AudioEffect interface
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
 #include <circle/logger.h>
 #include "effect_base.h"
 
diff --git a/src/effect_base.h b/src/effect_base.h
index 5a47ef8..eb234b7 100644
--- a/src/effect_base.h
+++ b/src/effect_base.h
@@ -1,3 +1,7 @@
+/* 
+ * Base AudioEffect interface
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
 #ifndef _EFFECT_BASE_H
 #define _EFFECT_BASE_H
 
diff --git a/src/effect_bigmuff.cpp b/src/effect_bigmuff.cpp
index 9a16d73..090274d 100644
--- a/src/effect_bigmuff.cpp
+++ b/src/effect_bigmuff.cpp
@@ -1,3 +1,9 @@
+/* 
+ * MOD Big Muff Port
+ * Ported from https://github.com/moddevices/mod-distortion/tree/master/bigmuff
+ *  
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
 #include <circle/logger.h>
 #include "effect_bigmuff.h"
 #include "moddistortion/OverSample.h"
diff --git a/src/effect_bigmuff.h b/src/effect_bigmuff.h
index 7cf2d67..747c8e1 100644
--- a/src/effect_bigmuff.h
+++ b/src/effect_bigmuff.h
@@ -1,3 +1,9 @@
+/* 
+ * MOD Big Muff Port
+ * Ported from https://github.com/moddevices/mod-distortion/tree/master/bigmuff
+ *  
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
 #ifndef _EFFECT_BIGMUFF_H
 #define _EFFECT_BIGMUFF_H
 
diff --git a/src/effect_ds1.cpp b/src/effect_ds1.cpp
index 0cb6566..996918f 100644
--- a/src/effect_ds1.cpp
+++ b/src/effect_ds1.cpp
@@ -1,3 +1,9 @@
+/* 
+ * MOD DS-1 Port
+ * Ported from https://github.com/moddevices/mod-distortion/tree/master/ds1
+ *  
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
 #include <circle/logger.h>
 #include "effect_ds1.h"
 #include "moddistortion/OverSample.h"
diff --git a/src/effect_ds1.h b/src/effect_ds1.h
index 817a4e2..3b38e86 100644
--- a/src/effect_ds1.h
+++ b/src/effect_ds1.h
@@ -1,3 +1,9 @@
+/* 
+ * MOD DS-1 Port
+ * Ported from https://github.com/moddevices/mod-distortion/tree/master/ds1
+ *  
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
 #ifndef _EFFECT_DS1_H
 #define _EFFECT_DS1_H
 
diff --git a/src/effect_lpf.h b/src/effect_lpf.h
index 97622fd..ee6f1ec 100644
--- a/src/effect_lpf.h
+++ b/src/effect_lpf.h
@@ -1,3 +1,7 @@
+/* 
+ * Stereo Low Pass Filter
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
 #ifndef _EFFECT_LPF_H
 #define _EFFECT_LPF_H
 
diff --git a/src/effects.h b/src/effects.h
index 49789f9..b30f419 100644
--- a/src/effects.h
+++ b/src/effects.h
@@ -1,3 +1,7 @@
+/* 
+ * AudioEffect Utilities
+ * Javier Nonis (https://github.com/jnonis) - 2024
+ */
 #ifndef _EFFECTS_H
 #define _EFFECTS_H