MULTICHANNEL SIGNAL GENERATOR, AUDIO ENCODER AND RELATED METHODS BASED ON MIXING NOISE SIGNAL Russian patent published in 2023 - IPC G10L19/12 

FIELD: computer engineering.

SUBSTANCE: processing audio data. The technical result is to provide comfortable stereo noise by modelling the spectral characteristics of background noise in both channels, as well as the degree of correlation between them while maintaining an average bit rate comparable to mono applications. The technical result is achieved by generating a first audio signal using a first audio source; generating a second audio signal using the second audio source; generating a mixing noise signal using a mixing noise source; and mixing the mixing noise signal and the first audio signal to obtain a first channel, and mixing the mixing noise signal and the second audio signal to obtain a second channel, using a first amplitude element affecting the amplitude of the first audio signal; using a first adder that sums the output signal of the first amplitude element and at least a portion of the noise mixing signal; using a second amplitude element affecting the amplitude of the second audio signal; using a second adder summing the output of the second amplitude element and at least a portion of the mixing noise signal.

EFFECT: comfortable stereo noise by modelling the spectral characteristics of background noise in both channels, as well as the degree of correlation between them while maintaining an average bit rate comparable to mono applications.

49 cl, 11 dwg