发明名称 |
CROSS PRODUCT ENHANCED HARMONIC TRANSPOSITION |
摘要 |
The present invention relates to audio coding systems which make use of a harmonic transposition method for high frequency reconstruction (HFR). A system and a method for generating a high frequency component of a signal from a low frequency component of the signal is described. The system comprises an analysis filter bank providing a plurality of analysis subband signals of the low frequency component of the signal. It also comprises a non-linear processing unit to generate a synthesis subband signal with a synthesis frequency by modifying the phase of a first and a second of the plurality of analysis subband signals and by combining the phase-modified analysis subband signals. Finally, it comprises a synthesis filter bank for generating the high frequency component of the signal from the synthesis subband signal. |
申请公布号 |
KR20130006723(A) |
申请公布日期 |
2013.01.17 |
申请号 |
KR20127034420 |
申请日期 |
2010.01.15 |
申请人 |
DOLBY INTERNATIONAL AB |
发明人 |
VILLEMOES LARS;HEDELIN PER |
分类号 |
G10L19/00;H03M7/30;H04N21/233 |
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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