iarjetIARJETIARJET2708-5163https://doi.org/10.47310/iarjet.2021.v02i01.021Am Modulation of Man’s VoiceAlabiA. A.AdelekeB. S.TadeA. A.KolawoleI. G.FawoleT. G.OgunjobiE. O.AraromiA. A.Department of Science Laboratory Technology (Physics Unit), Adeseun Ogundoyin Polytechnic, Eruwa, , Oyo State, NigeriaDepartment of Electrical Engineering, Adeseun Ogundoyin Polytechnic, Eruwa, , Oyo State, NigeriaDepartment of Electrical/Electronic Engineering, Yaba College of Technology, Lagos State, NigeriaDepartment of Mathematics and Statistics, Adeseun Ogundoyin Polytechnic, Eruwa, , Oyo State, NigeriaThis work demonstrates the recording and modulation of human voice through MATLAB IDE. Because the human voice cannot travel a far distance, because of its low frequency, due to attenuation, is multiplied with another signal that has higher frequency. The human voice used in this work has a frequency of 340Hz with amplitude 0.11V and it modulates a carrier frequency of 9800Hz with amplitude 0.15V. The modulated signal is demodulated to reproduce the human voice. The human voice reproduced has a lot of ripples which are removed by FIR low pass filter and the final output signal has an amplitude of 0.014V and frequency 338Hz.