Abstract
Abstract The human voice, as an instrument of crime, is used more often than a weapon and automobile combined. Some crimes are committed by the voice alone; therefore, to be able to identify a speaker by his voice is a very desirable goal in the fight against crime. However, desire has been somewhat hindered by the lack of technology and instrumentation. The use of spectrograms (voiceprints) to assist the expert in making an objective evaluation of the voices in question is discussed. The scientific reason for accepting the identification of a speaker’s voice is the uniqueness of man. Therefore, if a unique person uses unique physiological body parts to produce the sounds of speech, it logically follows that sound will also be unique. By the visual examination of the spectrographic analysis, a trained expert is able to compare the uniqueness.
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