Bouchakour, Lallouani, and Mohamed Debyeche. “Improving Performance Of Hmm-Based Asr For Gsm-Efr Speech Coding”. AL-Lisaniyyat 20, no. 1 (June 28, 2014): 19-26. Accessed April 3, 2025. https://crstdla.dz/ojs/index.php/allj/article/view/499.