Burton, Trevor, and Rafik Goubran. “An Analysis of Loudspeaker Distortion in the Context of Acoustic Echo Cancellation”. Canadian Acoustics 37, no. 3 (September 1, 2009): 60–61. Accessed May 5, 2026. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2133.