What is the sound of history in the cadence of Dr. King's speeches? Rutgers University Professor Maurice O. Wallace talks about his new book, "King′s Vibrato; Modernism, Blackness, and the Sonic Life of Martin Luther King Jr.," published by Duke University Press. In this clip, Dr. Wallace shares why King's way of speaking resonated so much when he was a boy listening to his father's vinyl record of the "I Have A Dream" speech made during the historic 1963 March on Washington.

Watch the full conversation here: https://youtu.be/oG46Px0ebPc