Rhetorical Voice is an intersection of persona, style, and ideology. Voice can be personal or collective.
Sources
Hansot, Elisabeth. “Hearing Voices: Rhetoric, Imitation, and Civic Competence.” Journal of Education (Boston, Mass.) 185, no. 2 (2005): 27–45.
Phelan, James. “Voice, Tone, and the Rhetoric of Narrative Communication.” Language and Literature (Harlow, England) 23, no. 1 (2014): 49–60.
Watts, Erik King. "Cultivating a Black Public Voice: W. E. B. Du Bois and the 'Criteria of Negro Art'." Rhetoric and Public Affairs 4 (2001): 181-201.
Watts, Eric King. “‘Voice’ and ‘Voicelessness’ in Rhetorical Studies.” //The Quarterly Journal of Speech 87, no. 2 (2001): 179–196.
Wood, Julia T., and Robert Cox. "Rethinking Critical Voice: Materiality and Situated Knowledges." Western Journal of Communication 57 (1993): 278-287.