On Tue, Jun 30, 2015 at 1:33 AM, Rostislav Pehlivanov <atomnu...@gmail.com> wrote: > > Why the need to have "sce->pns_ener[w*16+g] = energy / > sce->ics.group_len[w];", normalization? The energy value is log2'd during > scalefactor indices calculation so it's hardly going to change much. Will do > some tests to see if it smooths out the transition of normal bands -> PNS.
The change is still noticeable though during transients (making them harder), when group_len can go all the way to 4. Since you're adding energies, but the scaling factor is a scale, if you don't get the average energy instead the sum, you overestimate the scaling factor. Subtle, but noticeable on transientful signals. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel