Speech Power and Energy

I N the past, much research has been devoted to the determination of the relative magnitudes of the frequency components of speech, and the results of these explorations are useful and well known. Thus the communication engineer is apprised of the frequency range over which his apparatus should respond uniformly in order that the transmitted speech suffer no frequency distortion. But to provide against load distortion, he requires the knowledge of a different kind of d a t a : numerical values of the magnitude of power involved in speech waves as a whole. This investigation deals with the magnitudes and forms of speech waves primarily in terms of power, and is not concerned with frequency as the argument.