MULTICHANNEL RECONSTRUCTION BASED ON MULTIPLE PARAMETRISATION Russian patent published in 2009 - IPC G10L19/00 

FIELD: physics.

SUBSTANCE: invention relates to multichannel reconstruction of audio signals, based on available stereo signal and additional control data. A multichannel synthesiser for generating at least three output channels using an input signals with at least one base channel, where the base channel is obtained from the initial multichannel signal. The input signal additionally includes at least two different mixing parametres with increase in number of channels and indication of the mode of the module for mixing with increase in number of channels, showing in the first state that, the first rule for mixing with increase in number of channels should hold, and showing in the second state that, the second rule for mixing with increase in number of channels should hold. The module for mixing with increase in number of channels is meant for mixing at least one base channel using at least two different parametres for mixing with increase in number of channels, based on the first or second rule for mixing with increase in number of channels, in response to indication of the mode of the module which shows mixing, such that at least three output channels are obtained.

EFFECT: higher quality of reconstructed multichannel signal.

43 cl, 21 dwg