ENHANCING SOURCE CODING SYSTEMS BY ADAPTIVE TRANSPOSITION
摘要
The present invention relates to a new method for enhancement of source coding systems using high-frequency reconstruction. The invention teaches that tonal signals can be classified as either pulse-train-like or non-pulse-train-like. Relying on this classification, significant improvements on the perceived audio quality can be obtained by adaptive switching of transposers. The invention shows that the so-switched transposers must have fundamental differences in their characteristics.
申请公布号
WO02052545(A1)
申请公布日期
2002.07.04
申请号
WO2001SE02828
申请日期
2001.12.19
申请人
CODING TECHNOLOGIES SWEDEN AB;KJOERLING, KRISTOFER;HENN, FREDRIK;EKSTRAND, PER;VILLEMOES, LARS
发明人
KJOERLING, KRISTOFER;HENN, FREDRIK;EKSTRAND, PER;VILLEMOES, LARS