FIELD: technology for analyzing speech under unfavorable environmental conditions.
SUBSTANCE: during transformation of spoken command first circular buffer is continuously filled with digitized signal, comb of recursive filters is applied to multiply loosened signal and spectral components are utilized to fill second circular buffer, limits of speech fragment are determined within it on basis of adaptive estimate of noise environment, spectral components of speech fragment are transferred to linear analysis buffer, shortened sign space is received from aforementioned buffer and produced spectral components are compared to standard vectors of database commands.
EFFECT: utilization of device under conditions of, for example, moving vehicle or mechanical industry with high noise pollution level provides for stable recognition of commands independently on particularities of narrators pronunciation, decreased memory volume.
7 cl, 2 dwg
