
21
BIometrIC systems
behavior (e.g., the tone of voice and the style of speaking), and, finally,
by a signal requesting a heavy treatment (i.e., spectral analysis and
frequency) (Chasse 2002).
2.3.2.2.1 Fields of Application Voice recognition is used in popular
applications to secure data over a telephone line (Phillips et al. 2000)
or for the recognition of individuals (e.g., Sphinx-3 system developed
by Carnegie Mellon University [CMU]) (Cho et al. 2005). is tech-
nology is also used in the verification of cases of house arrest (Escobar
2006). Where appropriate, at any time a computer calls a person at
his home and he or she must answer the ph ...