 Filter frequency response

Filter frequency response describes how a filter modifies the amplitude and phase of signals at different frequencies. It is a crucial concept in signal processing, as it provides insights into how the filter will affect various frequency components of an input signal. ### Key Components of Frequency Response: 1. **Magnitude Response**: - Represents the gain (amplitude change) applied to different frequency components of the input signal. - Typically expressed in decibels (dB) or as a ratio (magnitude).