Invention Grant
US07164769B2 Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients
有权
多通道光谱映射音频设备和方法，具有动态变化的映射系数
- Patent Title: Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients
- Patent Title (中): 多通道光谱映射音频设备和方法，具有动态变化的映射系数
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Application No.: US09891941Application Date: 2001-06-25
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Publication No.: US07164769B2Publication Date: 2007-01-16
- Inventor: Terry D. Beard
- Applicant: Terry D. Beard
- Applicant Address: US CA Westlake Village
- Assignee: Terry D. Beard Trust
- Current Assignee: Terry D. Beard Trust
- Current Assignee Address: US CA Westlake Village
- Agency: Koppel, Patrick & Heybl
- Main IPC: H04R5/00
- IPC: H04R5/00
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
- US20020009201A1 Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients Public/Granted day:2002-01-24
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