AUDIO PROCESSING IN AUDIO SERVICES WITH EFFECT OF PRESENCE Russian patent published in 2023 - IPC H04R3/00 

FIELD: acoustics.

SUBSTANCE: immersive audio processing apparatus comprising or connected to a microphone system (302) comprising one or more microphones for capturing audio, the apparatus comprising: a receiving unit (304) configured to: receive (S13) directional audio (320) captured by the microphone system; receiving (S14) metadata (322) associated with the microphone system, wherein the metadata comprises spatial data of the microphone system, wherein the spatial data characterizes the spatial orientation and/or spatial position of the microphone system and comprises at least one of a list including: angle (angles) of azimuth, pitch, roll and spatial coordinates of the microphone system; a computing unit (306) configured to: modify at least some portion of the directional sound to produce a modified directional sound, wherein the directionality of the sound is modified based on the spatial orientation and/or spatial position of the microphone system; downmixing the modified directional audio based on the spatial orientation of the microphone system using a downmix matrix; encoding the modified directional audio and downmix matrix into digital audio data (328); a transmission unit (308) configured to transmit digital audio data.

EFFECT: obtaining audio signals with the effect of presence.

28 cl, 7 dwg