Study of effects of surgical treatment in the larynx area on the speech signal

The speech signal emitted by humans may be a source of
useful diagnostic and prognostic information. The signal may become, indirectly
by some selected parameters, an additional source of information concerning the
condition of the patient's vocal tract anatomy, as well as physiology and
pathology (deformation) of his/her other internal organs. The paper presents the
next, consecutive stage of the authors' research, concerning the search for
additional parameters, which could be used for objective detection and
registration of pathological changes in the larynx and vocal tract area.