Noise Reduction with FIR Hamming Window

To reduce White Gaussian Noise with FIR Filter (Bandpass, Bandstop)

The desired frequency is 1kHz and 1.7kHz.
It is added with White Gaussian Noise.
The noisy Signal is being filtered with Bandpass, and then Bandstop.
Both of the Filters and design with FIR Hamming Window 100 Tap, it can be better by increasing the tap number.
Feel free to experiment it, you may also insert your own signals.