search for: wdel

...float p=.7071067812f; float q=.7071067812f; will just leads after applying all the products and squaring to p and q having a common factor 0.5 which can be extracted from the formulaes. So I propose to replace: float p=.7071067812f; float q=.7071067812f; float w=vorbis_coslook(wdel*k); float *ftmp=lsp; int c=m>>1; by: float w=vorbis_coslook(wdel*k); float p=lsp[0]-w; float q=lsp[1]-w; float *ftmp=lsp + 2; int c=(m>>1) - 1; and: vorbis_invsq2explook(qexp+m) by: vorbis_invsq2explook(qexp+m-1) André --- >8 ---- List arch...

Hello I'm working on a fix-point decoder for AOS/Bluebottle - the proprietary OS of ETH Zurich. I've some problems with Floor0-curve-computation: I don't know what the little omega [cos(w)] stands for, line 3 of the official Vorbis documentation. Does anybody knows what this value means? I've tried to get the answer from the jOrbis and Tremor, but both seem to do - among

...the lsp_look lookup array isn't ideal and found a better change that can be applied. in floor0_map_lazy_init() you can replace look->linearmap[W][j]=val; by look->linearmap[W][j]=vorbis_coslook(M_PI*val/look->ln); and in vorbis_lsp_to_curve you then replace float w=vorbis_coslook(wdel*k); ... }while(map[i]==k); by float w=map[i]; ... }while(map[i]==w); then get rid of the ln function parameter and the k local variable. <p><p>Next the fact that p and q are initialised to 1/sqrt(2), multiplied by a series of factors and finally squared means that on exit the 1/sqrt...