METHODS FOR IMPROVING HIGH FREQUENCY RECONSTRUCTION
摘要
The present invention proposes a new method and a new apparatus for enhancement of audio source coding systems utilising high frequency reconstruction (HFR). It utilises a detection mechanism (703a) on the encoder side to assess what parts of the spectrum will not be correctly reproduced by the HFR method in the decoder. Information on this is efficiently coded (703b) and sent to the decoder, where it is combined with the output of the HFR unit.
申请公布号
WO03046891(A1)
申请公布日期
2003.06.05
申请号
WO2002EP13462
申请日期
2002.11.28
申请人
CODING TECHNOLOGIES SWEDEN AB;KJOERLING, KRISTOFER;EKSTRAND, PER;HOERICH, HOLGER