GENERATION OF BINAURAL SIGNALS Russian patent published in 2014 - IPC H04S3/00 

FIELD: radio engineering, communication.

SUBSTANCE: described is a device for generating a binaural signal based on a multi-channel signal representing a plurality of channels and intended for reproduction by a speaker system, wherein each virtual sound source position is associated to each channel. The device includes a correlation reducer for differently converting, and thereby reducing correlation between, at least one of a left and a right channel of the plurality of channels, a front and a rear channel of the plurality of channels, and a centre and a non-centre channel of the plurality of channels, in order to obtain an inter-similarity reduced combination of channels; a plurality of directional filters, a first mixer for mixing output signals of the directional filters modelling the acoustic transmission to the first ear canal of the listener, and a second mixer for mixing output signals of the directional filters modelling the acoustic transmission to the second ear canal of the listener. Also disclosed is an approach where centre level is reduced to form a downmix signal, which is further transmitted to a processor for constructing an acoustic space. Another approach involves generating a set of inter-similarity reduced transfer functions modelling the ear canal of the person.

EFFECT: providing an algorithm for generating a binaural signal which provides stable and natural sound of a record in headphones.

33 cl, 14 dwg