From af44ad2448f71750c579c42afe512b077ecf2ed4 Mon Sep 17 00:00:00 2001
From: Kuba <132459354+KubaPro010@users.noreply.github.com>
Date: Fri, 8 Aug 2025 22:50:10 +0200
Subject: [PATCH] most needed with least implementations

---
 filter/iir.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/filter/iir.h b/filter/iir.h
index 734642c..2496a68 100644
--- a/filter/iir.h
+++ b/filter/iir.h
@@ -15,8 +15,7 @@ float apply_preemphasis(ResistorCapacitor *filter, float sample);
 
 typedef struct {
     float alpha;
-	float y_prev;
-	float x_prev;
+	float dc_estimate;
 } TiltCorrectionFilter;
 
 void tilt_init(TiltCorrectionFilter* filter, float alpha);