Invention Grant
US08175729B2 Preserving matrix surround information in encoded audio/video system and method
有权
在编码音频/视频系统和方法中保留矩阵环绕信息
- Patent Title: Preserving matrix surround information in encoded audio/video system and method
- Patent Title (中): 在编码音频/视频系统和方法中保留矩阵环绕信息
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Application No.: US12235504Application Date: 2008-09-22
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Publication No.: US08175729B2Publication Date: 2012-05-08
- Inventor: Wolfgang A. Schildbach , Kenneth Edward Cooke
- Applicant: Wolfgang A. Schildbach , Kenneth Edward Cooke
- Applicant Address: US WA Seattle
- Assignee: RealNetworks, Inc.
- Current Assignee: RealNetworks, Inc.
- Current Assignee Address: US WA Seattle
- Agency: Aeon Law
- Agent Adam L. K. Philipp
- Main IPC: G06F17/00
- IPC: G06F17/00

Abstract:
A method and apparatus for preserving matrix-surround information in encoded audio/video includes a receiver operative to receive matrix-surround encoded audio signals, separate the audio signals into a frequency spectrum having discrete audio frequencies, and determine a cutoff threshold used to encode the matrix-surround encoded audio signals. The method and apparatus further includes a decoder operative to decode a first set of the audio frequencies below the determined cutoff threshold using a first matrix-surround preserving audio encoding method and to decode a second set of audio frequencies above the cutoff threshold using a second non matrix-surround preserving audio encoding method.
Public/Granted literature
- US20090041256A1 PRESERVING MATRIX SURROUND INFORMATION IN ENCODED AUDIO/VIDEO SYSTEM AND METHOD Public/Granted day:2009-02-12
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