diff --git a/main.m b/main.m
index 82a4865..4c5cd69 100644
--- a/main.m
+++ b/main.m
@@ -11,7 +11,7 @@ pkg load signal
 signal = csvread('unknownsignal.csv');
 
 %input data
-fs = 1000; %Sampling freq (Hz)
+fs = 300; %Sampling freq (Hz)
 fc = 100; %Cut-off Freq (Hz)
 n = 4; % Filter order
 
@@ -26,7 +26,7 @@ ylabel('Amplitude');
 title('Signal data in time domain');
 
 %frequency Spectrum
-frequencySpectrum(signal,samplingFreq);
+frequencySpectrum(signal,fs);
 
 %spectrogram
 %spectrogram(signal, samplingFreq, 30, 5)