Invention Grant
US07773756B2 Multichannel spectral mapping audio encoding apparatus and method with dynamically varying mapping coefficients
有权
多通道光谱映射音频编码装置和方法，具有动态变化的映射系数
- Patent Title: Multichannel spectral mapping audio encoding apparatus and method with dynamically varying mapping coefficients
- Patent Title (中): 多通道光谱映射音频编码装置和方法，具有动态变化的映射系数
-
Application No.: US11258790Application Date: 2005-10-25
-
Publication No.: US07773756B2Publication Date: 2010-08-10
- 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
Information query
