diff --git a/src/temp-cortex/filter_params.hpp b/src/temp-cortex/filter_params.hpp
new file mode 100644
index 0000000..b9f51c3
--- /dev/null
+++ b/src/temp-cortex/filter_params.hpp
@@ -0,0 +1,22 @@
+#pragma once
+
+typedef struct
+{
+    float cutoff;
+    float res;
+    float Q;
+} FilterParameters;
+
+typedef struct {
+    float a1;
+    float a2;
+    float b0;
+    float b1;
+    float b2;
+} NormalCoefficients;
+
+typedef struct {
+    float x[2];  // Previous inputs
+    float y[2];  // Previous outputs
+    float fb;  // Feedback value for resonance
+} FeedbackLine;
\ No newline at end of file