diff --git a/test_data/WriteImpulse.m b/test_data/WriteImpulse.m
index 2f42e16..2a4dd57 100644
--- a/test_data/WriteImpulse.m
+++ b/test_data/WriteImpulse.m
@@ -8,11 +8,10 @@
 fs2 = fs / 2;
 n = 1000;
 impulse = [1,zeros(1, n-1)];
-step = fs/n;
-x = 0:step:fs - step;
+N = 8;
+
 f0 = 200;
 Q = 1.4;
-N = 8;
 
 %HP filter
 [z, p, k] = butter ( N, f0 / fs2, "high" );
@@ -33,17 +32,8 @@
 filtered = sosfilt(sos, impulse);
 csvwrite("impulse_response/BPimpulse.csv", [3, fs, f0, Q, n, filtered]);
 
-clear all
-close all
-fs = 39e3;
-fs2 = fs / 2;
-n = 1000;
-impulse = [1,zeros(1, n-1)];
-step = fs/n;
-x = 0:step:fs - step;
 f0 = 2000;
 Q = 0.8;
-N = 8;
 
 %HP filter
 [z, p, k] = butter ( N, f0 / fs2, "high" );
@@ -64,17 +54,8 @@
 filtered = sosfilt(sos, impulse);
 csvwrite("impulse_response/BPimpulse2.csv", [3, fs, f0, Q, n, filtered]);
 
-clear all
-close all
-fs = 39e3;
-fs2 = fs / 2;
-n = 1000;
-impulse = [1,zeros(1, n-1)];
-step = fs/n;
-x = 0:step:fs - step;
 f0 = 15000;
 Q = 2.0;
-N = 8;
 
 %HP filter
 [z, p, k] = butter ( N, f0 / fs2, "high" );
@@ -94,4 +75,3 @@
 sos = zp2sos(z, p, k);
 filtered = sosfilt(sos, impulse);
 csvwrite("impulse_response/BPimpulse3.csv", [3, fs, f0, Q, n, filtered]);
-