1.	Click to see and hear the noisy signal

2.	Design the filter

Play the signal in order to
enable the filter control.

Filter Parameters

Change the filter parameters and see how it affects the filter's impulse and frequency response. Then click the Test Filter button to hear the filtered signal.

Sampling Frequency (f_s):

kHz

Cutoff Frequency (f_c):

kHz

Normliazed Cutoff Frequency \( f_t = \frac{f_c}{f_s} \):

Number of Taps (N):

33 129 257 513

Apply Hanning Window:

No Yes

Impulse Response

Filter Taps

Window Function

Desired Response

Actual Response

Raw Signal

Filtered Signal

3.	Filter Taps

Taps Equation


where:

n	w_n	g_n