“…Other acoustic changes of women's voices have been reported following menopause. Following menopause, women's voices decreased in speaking fundamental frequency ( f 0 ; D'Haeseleer et al, 2011; D'Haeseleer, Depypere, & Van Lierde, 2013;Raj, Gupta, Chowdhury, & Chadha, 2010;Schneider, van Trotsenburg, Hanke, Bigenzahn, & Huber, 2004). Also, women's signal-to-noise ratio increases until the age of 50 years and then decreases with age, which may relate to the onset of menopause (Stathopoulos, Huber, & Sussman, 2011).…”