发明名称 |
METHOD AND APPARATUS FOR PRESERVING MATRIX SURROUND INFORMATION IN ENCODED AUDIO/VIDEO |
摘要 |
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. |
申请公布号 |
AU2003241315(A1) |
申请公布日期 |
2003.11.10 |
申请号 |
AU20030241315 |
申请日期 |
2003.04.22 |
申请人 |
REALNETWORKS, INC. |
发明人 |
WOLFGANG, A. SCHILDBACH;KENNETH, EDWARD COOKE |
分类号 |
G10L19/00;G10L19/02;G10L19/14;H04S3/02 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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