An Investigation Of The Effects Of Speakers' Vocal Characteristics On Ratings Of Confidence And Persuasion

This experiment furthered previous research on perceptions of speakers as a function of various vocal characteristics. A low relevance passage was recorded by male and female speakers, simulating voices of orotund, thin, thoaty, flat, breathy, as well as rate and pitch variations, so as to determine effects on persuasiveness and confidence. Main effects were found regarding gender across all vocal characteristics. While an orotund voice produced predominately positive effects of ratings of speakers' confidence and persuasiveness, a breathy effect elicited negative ratings. The male speaker was judged more harshly than the female speaker when the vocal characterization departed from the norm.