Software Implementation of Digital filters

Abstract: This thesis proposes to create a MATLAB GUI (Graphical User Interface) to replace an existing laboration exercise in signal processing at Blekinge Institute of Technology. MATLAB is a matrix-based technical computing language widely used throughout the scientific, engineering and mathematical communities. A GUI provides a graphical interface between the program and the user, facilitating ease and frequency of use. Development of a MATLAB GUI for this laboration exercise will benefit the students and increase the awareness towards designing of digital filters. The developed software provides an interface between audio recording and playback hardware and the user when exploring filter design parameters. This software is designed for analyzing digital filter characteristics such as amplitude, phase and pole/zero locations which are useful in designing an appropriate filter. This can be achieved by entering arbitrary filter parameters.