WEI, Y. Z. Optimization of Vocal Teaching Empowered by AI A Comprehensive Study on Quantitative Evaluation and Personalized Guidance System for Singing Skills Based on Voiceprint Feature Extraction. Advanced Electromagnetics, [S. l.], v. 15, n. 3, p. 3394–3403, 2026. DOI: 10.7716/aem.v15i3.3406. Disponível em: https://www.aemjournal.org/index.php/AEM/article/view/3406. Acesso em: 18 aug. 2026.