On Tue, Jan 24, 2012 at 2:48 PM, Luca Barbato <lu_z...@gentoo.org> wrote: > On 24/01/12 13:25, Alex Converse wrote: >> I think these QMFs can be performed with substantially less >> computation (smaller transforms with similar amounts of pre/post >> processing). I can send interested parties the relevant paper (yes I >> know papers are a dime a dozen but this particular paper seems >> promising). > > Sounds interesting.
Sorry for the delay: The paper in question is: "Fast decomposition of filterbanks for the state-of-the-art audio coding" http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1510661 http://video.ee.ntu.edu.tw/publication/paper/[J][2005][SPL][Shih-Way.Huang][1].pdf The current implementation is based on: "Fast Complex Quadrature Mirror Filterbanks for MPEG-4 HE-AAC" http://www.aes.org/e-lib/browse.cfm?elib=13705 http://sites.google.com/site/wenchiehlee1020/Papers/ComplexFB_AES_121paper144.pdf --Alex _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
