;Stereo reverb with 3 variables: ;pot0 = reverb time ;pot1 = diffusion ;pot2 = decay filtering ;95 ticks equ krt reg0 ;reverb time equ kdiff reg1 ;input AP diffusion coefficients equ kfh reg2 ;high freq shelf equ kfl reg3 ;low freq shelf equ temp1 reg4 ;temporary register equ temp2 reg5 equ temp3 reg6 equ fil_ll reg7 equ fil_lh reg8 equ fil_rl reg9 equ fil_rh reg10 equ kin reg11 ;input scaling, function of Krt equ kap 0.6 ;loop AP coefficients equ kapi 0.65 ;input AP coefficient equ kluph 0.3 ;loop high cut freq equ klupl 0.03 ;loop low cut freq mem apl1 420 mem apl2 867 mem apl3 1578 mem apl4 390 mem apr1 450 mem apr2 909 mem apr3 1630 mem apr4 576 mem apcl1 3402 mem apcl2 2202 mem dcl 7678 mem apcr1 3167 mem apcr2 2009 mem dcr 7353 ;prepare pots: rdax pot0,1 log 0.5,0 exp 1,0 ;square root of pot sof 0.7,0.2 ;rt spans 0.2 to 0.9 wrax krt,-0.8 sof 1,0.999 wrax kin,0 ;input scaling coefficient rdax pot1,0.7 wrax kdiff,0 ;input AP Ks from 0 to 0.7 sof 0,-0.5 ;load -0.5 rdax pot2,1 ;add pot2, ranges -0.5 to +0.5 sof 1.9999,0 ;ranges -1 to +1 wrax temp1,1 skp neg,1 clr ;do not allow to go positive wrax kfh,0 ;store low shelf, -1 to 0 (at mid pos) rdax temp1,1 ;get pot back sof -1,0 ;change sign skp neg,1 clr wrax kfl,0 ;same with high shelf, 0 (at mid pos) to -1 ;now do reverb: ;do 3 input all passes, controlled by the variable Kdiff rdax adcl,0.5 ;read in left side, leave headroom mulx kin wrax temp3,0 rda apl1#,1 ;read first AP output mulx kdiff ;mult by diffusion rdax temp3,1 ;read in left side, leave headroom wra apl1,-1 ;write result to AP delay, change sign mulx kdiff ;mult by diffusion rda apl1#,1 ;read AP out again wrax temp1,0 ;save to temp and clear ACC rda apl2#,1 mulx kdiff rdax temp1,1 wra apl2,-1 mulx kdiff rda apl2#,1 wrax temp1,0 rda apl3#,1 mulx kdiff rdax temp1,1 wra apl3,-1 mulx kdiff rda apl3#,1 rda apl4#,kapi ;read fourth input AP, fixed coefficient wrap apl4,-kapi rdax temp1,0 ;save in temp reg ;input all passes are now done. Now we add in the loop signal and filter: rda dcr#,1 ;read right delay output rdfx fil_ll,klupl ;set up low pass filter for high pass operation wrax fil_ll,1 ;change sign on lpf output mulx kfl ;scale by lower end of pot2 range rda dcr#,1 ;read back the delay output wrax temp2,1 ;save, continue in ACC rdfx fil_lh,kluph ;do low pass for high end control wrhx fil_lh,-1 ;create infinite shelf high pass mulx kfh ;scale by upper end of pot2 range rdax temp2,1 ;sum back temp value ;Loop feedback is now in place, filtered. ;scale by Krt, sum in input AP signal. mulx krt rdax temp1,1 ;sum in input all pass filters rda apcl1#,kap wrap apcl1,-kap ;do left loop all pass rda apcl2#,kap wrap apcl2,-kap ;do left loop all pass wra dcl,0 ;write result to left loop delay ;now do the same to the right channel: rdax adcr,0.5 ;read in right side, leave headroom mulx kin wrax temp3,0 rda apr1#,1 mulx kdiff rdax temp3,1 wra apr1,-1 mulx kdiff rda apr1#,1 wrax temp1,0 rda apr2#,1 mulx kdiff rdax temp1,1 wra apr2,-1 mulx kdiff rda apr2#,1 wrax temp1,0 rda apr3#,1 mulx kdiff rdax temp1,1 wra apr3,-1 mulx kdiff rda apr3#,1 rda apr4#,kapi ;read fourth input AP, fixed coefficient wrap apr4,-kapi rdax temp1,0 ;save in temp reg ;input all passes are now done. Now we add in the loop signal and filter: rda dcl#,1 rdfx fil_rl,klupl wrax fil_rl,1 mulx kfl rda dcl#,1 wrax temp2,1 rdfx fil_rh,kluph wrhx fil_rh,-1 mulx kfh rdax temp2,1 ;Loop feedback is now in place, filtered. Now sum in input AP signal. mulx krt rdax temp1,1 ;sum in input all pass filters rda apcr1#,kap wrap apcr1,-kap rda apcr2#,kap wrap apcr2,-kap wra dcr,0 ;write result to right loop delay ;now grab outputs from each delay input: rda dcl,1.99 rda dcl#,0.8 rda dcr#,0.9 wrax dacl,0 rda dcr,1.99 rda dcr#,0.8 rda dcl#,0.9 wrax dacr,0 clr 我爱AV，haose，吾爱av，奇米色,奇米网,奇米影视,奇米第四色在线影院