DEVICE AND METHOD FOR DELIVERING IMPROVED CHARACTERISTICS OF DIRECT DOWNMIXING FOR THREE-DIMENSIONAL AUDIO Russian patent published in 2017 - IPC H04S3/00 G10L19/08 

FIELD: physics.

SUBSTANCE: device for downmixing three or more input audio channels in order to receive two or more audio output channels, comprises a receiving interface for receiving three or more input audio channels and for receiving auxiliary information. In addition, the device includes a downmixer for downmixing three or more audio input channels depending on the side information in order to obtain two or more audio output channels. The number of output audio channels is less than the number of audio input channels. The auxiliary information indicates a characteristic of, at least, one of three or more input audio channels or a characteristic of one or more sound waves recorded in one or more input audio channels or a characteristic of one or more sound sources that emit one or more sound waves recorded in one or more input audio channels.

EFFECT: increasing the audio signal encoding efficiency.

10 cl, 9 dwg