SOUND PROCESSING SYSTEM AND METHOD Russian patent published in 2015 - IPC H04S7/00 H04S5/00 

FIELD: physics, acoustics.

SUBSTANCE: invention relates to audio signal processing. This system receives stereo signal to be divided by segmentation into frequency-time segments of stereo signals. Each of the latter can comply with sample of frequency band in the given time segment. Decomposition unit decomposes frequency-time signal segments for every pair of stereo signal time-frequency segments. This is executed in the steps that follow. Similarity measure is defined to indicate the degree of similarity of stereo signal frequency-time segments. Total signal time-frequency segment is generated as the sum of stereo signal frequency-time segments. Central stereo signal frequency-time segment is generated from total stereo signal frequency-time segments and pair of lateral stereo signal frequency-time segments from pair of stereo signal frequency-time segments in compliance with similarity measure. Then, generator generates multichannel signal containing central signal generated from total stereo signal frequency-time segments and lateral signals generated from lateral stereo signal frequency-time segments.

EFFECT: better spatial perception of sound signal.

14 cl, 5 dwg