LPC Analysis and Synthesis Demo Implementation

This self-developed demonstration program focuses on Linear Predictive Coding (LPC) analysis and synthesis, making it particularly suitable for undergraduate design references. The program provides practical implementations that help users learn and master LPC-related concepts, including speech signal processing, digital signal processing, and pattern recognition algorithms. The codebase features essential functionalities such as audio input/output handling using waveform file processing, spectral analysis through FFT-based methods, and real-time waveform visualization using plotting libraries. Key algorithmic implementations include autocorrelation calculation, Levinson-Durbin recursion for LPC coefficient extraction, and synthetic speech generation using an excitation source model. These well-documented code modules offer hands-on experience with fundamental DSP operations while demonstrating practical applications of LPC technology. Overall, this serves as a valuable and practical demonstration program not only for undergraduate design projects but also for professionals working in related research fields who need concrete implementation examples.