Universal Indicator of Information Content of the Speech Signature of a Document

Abstract

The paper substantiates the expediency of using formant intelligibility (FI) as a universal indicator of the information content of a speech signature (SS) and a biosignature (BS) used to protect important financial, legal, or administrative documents from forgery and falsification. The complex multifaceted nature of the information transmitted as part of the SS and BS is analyzed. It is shown that the integrity of this information determines the quality of the transfer of the contextual content of the protected document, as well as the accuracy of the transfer of the bioparameters of the document author, responsible for identifying his personality and assessing the adequacy of his condition. The expediency of application at the stages of development of the calculation method for determining the RI is substantiated. The comparison results of the possibility of using known graphic image formats for SS and BS encoding at different levels of the document carrier wear are presented.