“…Changing the acoustic correlates to both pitch and resonance features of a voice toward female normative values (i.e., higher pitch and more forward resonance than males) dramatically increases the likelihood that a voice is perceived as a female's, more so than changing pitch or resonance features alone (Hillenbrand & Clark, 2009). Several studies have reported positive treatment outcomes for adult male-to-female transgender speakers after targeting pitch and resonance in conjunction with intonation, rate, nonverbal communication, or overall vocal health (Carew, Dacakis, & Oates, 2007;Dacakis, 2000;Gelfer & Tice, 2013;Hancock & Garabedian, 2013;Soderpalm, Larsson, & Almquist, 2004). There is evidence that similar approaches can be used with adolescent clients (Hancock & Helenius, 2012).…”