Shahnaz, Celia, Wei-Ping Zhu, and M. Omair Ahmad. “A Cepstral-Domain Algorithm for Pitch Estimation from Noise-Corrupted Speech”. Canadian Acoustics 36, no. 3 (September 1, 2008): 80-81. Accessed May 6, 2021. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2047.