METHOD AND APPARATUS FOR REPRODUCING THREE-DIMENSIONAL SOUND Russian patent published in 2020 - IPC H04R5/02 

FIELD: acoustics.

SUBSTANCE: invention relates to acoustics, in particular to processing and reproduction of three-dimensional sound. Audio signal reproduction method comprises receiving multichannel audio signals and an input configuration, obtaining a first based on a head-related transfer function (HRTF) filter for a first input pitch channel signal among said multichannel audio signals, wherein first signal of pitch input channel is identified according to input configuration, obtaining first amplification coefficients for a first input pitch channel signal and performing reproduction at pitch with respect to said multichannel signals, including a first input pitch channel signal, based on a first HRTF based filter and first gain factors, for adjustment of sound location pitch by means of multiple signals of output channels containing horizontal configuration. Input configuration comprises information on azimuth and pitch information associated with said multichannel audio signals.

EFFECT: localization of virtual sound sources at a given pitch.

23 cl, 9 dwg