| I am a
at Hermannstadt University (Sibiu), I have recently came across the
implementation of the synthesis filterbank used in most of the xine-lib. I have
also read the article regarding the Fast IMDCT written by Mr. Lee, and
still miss the main idea of avoiding the computation as is described
in the standard ( the shifting, matrixing, and building the U vector) while computing the Synthesis Filter (synth_filter.c file) as it looks like it is using a different indexing .
Any article or guidance on how the Synthesis Filter was improved and by
avoiding the standard implementation and how this was performed, is
Thank you in advance!