US 7,321,855 B2 | ||
Method for quantifying psychological stress levels using voice pattern samples | ||
Charles Humble, 11400 Fortune Cir., West Palm Beach, Fla. 33414 (US) | ||
Filed on Dec. 15, 2003, as Appl. No. 10/737,530. | ||
Prior Publication US 2005/0131692 A1, Jun. 16, 2005 | ||
Int. Cl. G10L 21/00 (2006.01); G10L 11/00 (2006.01) |
U.S. Cl. 704—270 [704/273] | 19 Claims |
1. A computer-implemented method of assigning a numeric score to a voice pattern sample of a human subject wherein the score
is indicative of the psychological stress level of the human subject, comprising the steps of:
converting the verbal utterance of a human subject into electrical signals plotted on a Cartesian coordinate system to provide
a subject wave pattern having x and y axes;
filtering the subject wave pattern to remove extraneous values at the leading and trailing edges of the wave pattern to provide
a Relevant Pattern Location for analysis;
providing a consecutive series of known voice pattern characteristics, wherein the consecutive series exhibits a sequential
progression in the degree of blocking in the pattern;
assigning a numerical value range to each of the consecutive series of known voice pattern characteristics based on the degree
of blocking in the pattern;
analyzing the subject wave pattern within the Relevant Pattern Location to provide quantified data defining a set of characteristics
for the subject wave pattern;
providing quantified data defining a set of characteristics for the consecutive series of known voice pattern characteristics;
and
comparing the quantified data of subject wave pattern within the Relevant Pattern Location to quantified data for each of
the known voice pattern characteristics to ascertain a match between the subject wave pattern and one or more of the known
voice pattern characteristics; and
returning a numerical value for the subject wave pattern based on the one or more matching known voice pattern characteristics.
|