diff --git a/faustcode/lr2mg4dia.dsp b/faustcode/lr2mg4dia.dsp
new file mode 100644
index 0000000..777915b
--- /dev/null
+++ b/faustcode/lr2mg4dia.dsp
@@ -0,0 +1,13 @@
+// Gerzon's matrix to reproduce LR into 4 ch diamond configuration
+
+declare name "LR2MG4DIA";
+declare version "0.1";
+declare author "SMERM";
+declare description "Gerzon's matrix to reproduce LR into 4 ch diamond configuration";
+
+
+M = ((_+_)/2);
+S = ((_-_)/2);
+
+process(L,R) = (L,R)<:(M,L,R,S);
+