FIELD: technology for time compression of speech signals.
SUBSTANCE: compression of speech signal spectrum is performed by reducing range of alternation of instant frequency of speech signal and its envelope curve and by limiting the spectrum of envelope curve with an envelope curve of the original speech signal.
EFFECT: increased quality of transmission of broadband speech signals through narrowband channels due to reduced width of spectrum of transmitted speech signals.
2 cl, 1 dwg, 1 app
Authors
Dates
2008-03-20—Published
2006-09-27—Filed