发明名称 |
CROSS PRODUCT ENHANCED HARMONIC TRANSPOSITION |
摘要 |
<p>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.</p> |
申请公布号 |
SG172976(A1) |
申请公布日期 |
2011.08.29 |
申请号 |
SG20110050895 |
申请日期 |
2010.01.15 |
申请人 |
DOLBY INTERNATIONAL AB |
发明人 |
VILLEMOES, LARS;HEDELIN, PER |
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