A comprehensive technical history and practical survey traces methods for transmitting and recording sound, beginning with mechanical and string-based devices and moving through electrical telephony, diverse transmitter and receiver designs, and experimental investigations into their principles. It describes key inventor contributions and variations of apparatus, analyzes the microphone and its adaptations for amplification and scientific measurement, outlines applications such as relays and medical uses, and discusses practical challenges including interference and environmental effects. The work combines description, experimental results, and theoretical explanations to map the development and operation of period acoustic and electric sound technologies.