Invention Grant
- Patent Title: Multichannel spectral mapping audio apparatus and method
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Application No.: US11745907Application Date: 2007-05-08
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Publication No.: US07965849B2Publication Date: 2011-06-21
- Inventor: Terry D. Beard
- Applicant: Terry D. Beard
- Applicant Address: US CA Westlake Village
- Assignee: Terry D. Beard
- Current Assignee: Terry D. Beard
- Current Assignee Address: US CA Westlake Village
- Agency: Fish & Richardson P.C.
- Main IPC: H04R5/00
- IPC: H04R5/00 ; G10L19/00
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.
Public/Granted literature
- US20070206814A1 Multichannel Spectral Mapping Audio Apparatus and Method Public/Granted day:2007-09-06
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