diff --git a/+math/calculateSteps.m b/+math/calculateSteps.m
index 12c587315e9a57330674acc3e36c38da985d881b..e1aced198c6ccdaa638eb8f9fde3c22f054ebb8e 100644
--- a/+math/calculateSteps.m
+++ b/+math/calculateSteps.m
@@ -6,7 +6,7 @@
 % output:
 % dataStruct - containing calculated FPA.
 
-function dataStruct = calculateSteps(dataStruct, trialName)
+function dataStruct = calculateSteps(dataStruct, trialName, fCutOff)
 
 % Get the trial data.
 data = dataStruct.(trialName);
@@ -17,12 +17,12 @@ calibrationFields = fieldnames(dataStruct.calibration);
 % By default take the first calibration trial.
 calibration = dataStruct.calibration.(calibrationFields{1});
 
-% cut-off frequency of the filter.
-fCutoff = 2;
+% Store the cut-off frequency.
+data.fCutOff = fCutOff;
 
 % 2nd order low-pass butterworth filter to get the relevant motion data.
 % Implement as filtfilt due to no realtime constraints.
-[Bf, Af] = butter(2, (2 * fCutoff / data.fs));
+[Bf, Af] = butter(2, (2 * data.fCutOff / data.fs));
 data.filtAcc = filtfilt(Bf, Af, data.acc); 
 data.filtGyr = filtfilt(Bf, Af, data.gyr);
 
diff --git a/+math/initOrien.m b/+math/initOrien.m
index f01dc455c6e01f6e1cd495594929381052f3a1e8..0fd1cff5c1846eaa55b7bd20dedadcccdba8a39b 100644
--- a/+math/initOrien.m
+++ b/+math/initOrien.m
@@ -15,12 +15,9 @@
 
 function data = initOrien(data)
 
-% cut-off frequency of the filter.
-data.fCutoff = 2;
-
 % 2nd order low-pass butterworth filter to get the relevant motion data.
 % Implement as filtfilt due to no realtime constraints.
-[Bf, Af] = butter(2, (2 * data.fCutoff / data.fs));
+[Bf, Af] = butter(2, (2 * data.fCutOff / data.fs));
 data.filtAcc = filtfilt(Bf, Af, data.acc); 
 data.filtGyr = filtfilt(Bf, Af, data.gyr);
 
diff --git a/Main.m b/Main.m
index 3e201a07efde91f7f0e5da8ca1a8af6dcd43204a..9bd8ac8dcf2a7c974c47fa36ba55695dd18af21d 100644
--- a/Main.m
+++ b/Main.m
@@ -4,7 +4,7 @@
 clear all; close all; clc
 
 % Run the settings file.
-settingsFile
+settingsFile;
 
 % Allocate space for storing the data.
 dataStruct = struct();
@@ -19,7 +19,7 @@ for i = 3:length(subjectFolders)
     dataStruct.(subjectFolders(i).name) = struct();
     
     dataStruct.(subjectFolders(i).name).calibration = getCalibration( ...
-        join([subjectFolders(i).folder '\' subjectFolders(i).name '\' calibrationFolder],''));
+        join([subjectFolders(i).folder '\' subjectFolders(i).name '\' calibrationFolder],''), fCutOff);
 
     for j = 1:length(trialFiles)
         currentPath = [trialFiles(j).folder '\' trialFiles(j).name];
@@ -31,7 +31,7 @@ for i = 3:length(subjectFolders)
 
         % calculate all values for each step.
         dataStruct.(subjectFolders(i).name) = ...
-            math.calculateSteps(dataStruct.(subjectFolders(i).name), trialName);
+            math.calculateSteps(dataStruct.(subjectFolders(i).name), trialName, fCutOff);
 
     end
 end
diff --git a/getCalibration.m b/getCalibration.m
index 48f63f13ff956054a42ba1cddba71a84160b2481..cca60c2e6c0e6b6872a0f6b16d790c57d5c0c18c 100644
--- a/getCalibration.m
+++ b/getCalibration.m
@@ -1,6 +1,6 @@
 %% This function reads in data from Movella DOT csv files of the calibration folder.
 % filePath - full path to where calibration files are stored.
-function dataStruct = getCalibration(filePath)
+function dataStruct = getCalibration(filePath, fCutOff)
     
     % Only select the files that are relevant.
     calibDir = dir(filePath);
@@ -26,6 +26,9 @@ function dataStruct = getCalibration(filePath)
             dataStruct.(trialName).calibration = struct();    
         end
 
+        % cut-off frequency of the filter.
+        dataStruct.(trialName).fCutOff = fCutOff;
+
         % Determine the calibration orientation.
         dataStruct.(trialName) = math.initOrien(dataStruct.(trialName));       
 
diff --git a/settingsFile.m b/settingsFile.m
index 40b32a1e53469e232f229d68b89977e696002134..029e39e296a2d0de86eff3418125010885a69239 100644
--- a/settingsFile.m
+++ b/settingsFile.m
@@ -15,4 +15,7 @@ dirFlags = [allFiles.isdir];
 subjectFolders = allFiles(dirFlags);
 
 % gravity constant is defined.
-gravity = 9.81;
\ No newline at end of file
+gravity = 9.81;
+
+% filter cut off frequency.
+fCutOff = 10;
\ No newline at end of file