Girish Tiwari2, Manish Kumar Giri1,. “ENHANCING VOICE QUALITY THROUGH IMPROVED E-MODEL: A MATHEMATICAL ANALYSIS”. International Journal of Engineering Technology and Computer Research 3, no. 4 (August 30, 2015). Accessed June 27, 2026. https://www.ijetcr.org/index.php/ijetcr/article/view/229.