Welcome to Lecture 50 of the course "Digital Signal Processing" by Prof.David Koilpllai
Full Course: https://study.iitm.ac.in/es/course_pages/EE3101.html

Video Overview
This lecture focuses on the application of the Discrete-Time Fourier Transform (DTFT) and its properties in signal processing. It begins by comparing numerical computation with the Fast Fourier Transform (FFT), especially for handling large sequences. The session then introduces ideal filters—low-pass, high-pass, band-pass, and band-stop—and demonstrates how each one affects the frequency spectrum of an input signal. By using the convolution property of the DTFT, the lecture provides valuable insight into how these filters operate, laying a strong foundation for intuitive and effective filter design.

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