Copperi M. Review of Objective Speech Quality Measures for Voiceband Coders<br />DOI: 10.14209/jcis.1991.3. Journal of Communication and Information Systems [Internet]. 2015 Jun. 16 [cited 2024 Dec. 12];6(1). Available from: https://jcis.sbrt.org.br/jcis/article/view/163