DEVICE AND METHOD OF GENERATING MULTICHANNEL SIGNAL, USING VOICE SIGNAL PROCESSING Russian patent published in 2012 - IPC H04S5/02 G10L21/02 

FIELD: information technology.

SUBSTANCE: device for generating a multichannel signal (10) having a number of output channels greater than a number of input channels; a mixer is used for upmixing the input signal to form a direct channel signal and an ambience channel signal. A speech detector (18) is provided for detecting part of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier (20) modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. Loudspeaker signal outputting means (22) then map the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme.

EFFECT: high quality of generating a multichannel signal, including several output signals.

23 cl, 13 dwg