Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 7, 2010
Patent Application Number
11745944
Date Filed
May 8, 2007
Patent Primary Examiner
Patent abstract
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 stereo or monaural delivery systems. The invention reduces the data rate needed for the transmission of multichannel digital audio.
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