Humanities Teacher Award winner Dr. Eric Dogini (Alcorn State University) will present his public lecture, “The Sound: Analog Vs Digital Audio and How Microphones Work for Broadcast Journalists.” This presentation will be held in the JD Boyd Library Auditorium. Reception to follow.
Sound is the most fundamental building block of music, radio, television, and film and begins when something vibrates. Analog signal is an electrical copy of the original vibration incited into a microphone. Analog signal fluctuates like the original vibration, and it is continuous and rarely skips any part of the signal. Digital signal is discontinuous and does not process the total original signal incited into microphone, it skips from one point of the signal to the next, selecting a great number of successive points that represents the original signal. The microphones transduce (transform) sound waves into electric energy – the audio signal/sound we hear on radio, television, movies, and music, paging in public place and a two-way communication via phone. To understand how microphones work broadcast journalist from the physical and engineering points of view, we must understand the basics of sound transmission.
