A Simulation Tool for Introducing Algebraic Celp (acelp) Coding Concepts in a Dsp Course

This paper presents an educational tool for introducing Code Excited Linear Prediction (CELP) coding concepts in senior undergraduate and graduate DSP-related courses. The tool consists of a user-friendly graphical interface along with a complete MATLAB realization of all aspects of the Algebraic CELP G.729 algorithm [2]. This simulation software is accompanied by a series of computer experiments and exercises that can be used to provide hands-on training to class participants. The exercises designed based on the simulation tool may be used by instructors in a class setting to demonstrate key signal processing concepts associated with the processing of telephone-based speech. The MATLAB ACELP tool is being used in Arizona State University undergraduate DSP courses as well as in a graduate course on speech coding and in a continuing education short course. Evaluation of the tool and the exercises is being performed by an educational software assessment specialist.