FIELD: radio.
SUBSTANCE: present invention relates to a method for estimating pitch and/or fundamental frequency in a signal having a periodic or quasiperiodic component. Signal is transformed from a time-domain to a frequency-domain to obtain a spectrum of signal, spectrum is processed to obtain a zero-phase spectrum of signal, spectrum of signal is transformed to time-domain to obtain a correlation signal, spectrum and correlation signals are combined to a combined spectrum, and pattern is estimated based on combined spectrum.
EFFECT: technical result consists in improvement of reliability of estimating pitch and/or fundamental frequency in a signal.
15 cl, 8 dwg
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