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Electrical Audio Signal Processing Systems And Devices > Binaural And Stereophonic > Quadrasonic QuadrasonicQuadrasonic patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.04/05/07 - 20070076893 - Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other ... 06/15/06 - 20060126854 - Acoustic apparatus An acoustic apparatus includes a plurality of speakers that is arranged in predetermined individual positions; a plurality of sound sources that sends respective independent audio signals; an audio signal processing unit that sends sound field generation signals of a plurality of channels based on an audio signal supplied from a ... 06/08/06 - 20060120534 - Method for generating and consuming 3d audio scene with extended spatiality of sound source A method of generating and consuming 3D audio scene with extended spatiality of sound source describes the shape and size attributes of the sound source. The method includes the steps of: generating audio object; and generating 3D audio scene description information including attributes of the sound source of the audio ... 03/23/06 - 20060062396 - Optical reproducing apparatus and method to transform external audio into multi-channel surround sound An optical reproducing apparatus and method to transform external audio into multi-channel surround sound to provide a stereo effect. An optical disk drive detects a moving picture signal recorded on an optical disk. A digital signal processor digitalizes the detected moving picture signal. A decoder decompresses the digitalized moving picture ... ### FreshPatents.com Support |