PROCESSING DEVICE, PROCESSING METHOD, PROGRAM, COMPUTER-READABLE DATA RECORD MEDIUM AND INFORMATION PROCESSING SYSTEM Russian patent published in 2016 - IPC G10L21/232 

FIELD: sound.

SUBSTANCE: invention relates to processing audio signals. Processing device evaluates noise amplitude spectrum for noise included in an audio signal. Device comprises a module for calculating the amplitude spectrum configured to calculate the amplitude spectrum of the audio signal for each of the frames obtained from separation of the audio signal into time units; and a module for the noise amplitude spectrum evaluation configured to evaluate the noise amplitude spectrum for the noise detected from the frame. Noise amplitude spectrum evaluation module includes the first evaluation module configured to evaluate the noise amplitude spectrum on the basis of a difference between the amplitude spectrum calculated by means of the module for calculating the amplitude spectrum and the frame amplitude spectrum existing before the noise is detected, and the second evaluation module configured to evaluate the noise amplitude spectrum on the basis of attenuation function obtained from the frames noise amplitude spectra existing after the noise is detected.

EFFECT: technical result is the reduction of noise amplitude spectrum.

11 cl, 2 tbl, 16 dwg