Assignment 2: i) Notch Filter, ii) All Pass Filter.
Assignment 3: i) Overlap-and-add method with 16-point DFTs, ii) Kaiser window FIR filter, iii) Equiripple filter with the given pass and stop bands, iv) IIR band-stop filter with given pass and stop bands.
Modules of Digital Signal Processing: DFT-IDFT, Radix-2 FFT, Windowing etc.