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From: Piotr Tajdus <aegis@op.pl> There were problems with EQ10 on Sound Blaster (caused by ACCUM or macmv instruction, i am not sure), so i made some changes. Now equalizer should work also with SB Live.
113 lines
2.7 KiB
NASM
113 lines
2.7 KiB
NASM
name "EQ10"
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include "emu_constants.asm"
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;Piotr Tajdu¶
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;gadrael@interia.pl
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; 31 Hz
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c0 con 9.9713475915e-02 1.4326204244e-04 1.9971183163e-01
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; 62 Hz
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c1 con 9.9427771143e-02 2.8611442874e-04 1.9942120343e-01
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; 125 Hz
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c2 con 9.8849666727e-02 5.7516663664e-04 1.9882304829e-01
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; 250 Hz
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c3 con 9.7712566171e-02 1.1437169144e-03 1.9760670839e-01
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; 500 Hz
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c4 con 9.5477456091e-02 2.2612719547e-03 1.9505892385e-01
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; 1k Hz
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c5 con 9.1159452679e-02 4.4202736607e-03 1.8952405706e-01
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; 2k Hz
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c6 con 8.3100647694e-02 8.4496761532e-03 1.7686164442e-01
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; 4k Hz
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c7 con 6.9062328809e-02 1.5468835596e-02 1.4641227157e-01
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; 8k Hz
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c8 con 4.7820368352e-02 2.6089815824e-02 7.3910184176e-02
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; 16k Hz
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c9 con 2.5620076154e-02 3.7189961923e-02 -6.2810038077e-02
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sco sta 10.0
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inl io
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toutl equ inl
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inr io
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toutr equ inr
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inrl io
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toutrl equ inrl
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inrr io
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toutrr equ inrr
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inc io
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toutc equ inc
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inlfe io
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toutlfe equ inlfe
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Equalizer control #0,0,#1
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F0_31Hz control #0.5,0,#1
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F1_62Hz control #0.5,0,#1
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F2_125Hz control #0.5,0,#1
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F3_250Hz control #0.5,0,#1
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F4_500Hz control #0.5,0,#1
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F5_1000Hz control #0.5,0,#1
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F6_2000Hz control #0.5,0,#1
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F7_4000Hz control #0.5,0,#1
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F8_8000Hz control #0.5,0,#1
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F9_16000Hz control #0.5,0,#1
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dly0 sta 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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dly1 sta 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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dly2 sta 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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dly3 sta 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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dly4 sta 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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dly5 sta 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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out_tmp dyn
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tmp2 dyn
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tmp dyn
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dlx0 sta 0 0
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dlx1 sta 0 0
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dlx2 sta 0 0
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dlx3 sta 0 0
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dlx4 sta 0 0
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dlx5 sta 0 0
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;;; Band Pass Filter Macro:
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BPF macro OUT , IN , DELAY , DLXCB , COEF , GAIN
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macs1 tmp2,C_0,COEF+1,DLXCB+1
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macs tmp2,tmp2,COEF+1,IN
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macs tmp2,tmp2,COEF+2,DELAY
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macs1 tmp2,tmp2,COEF,DELAY+1
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macs DELAY+1,DELAY,C_0,C_0
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macints DELAY,C_0,tmp2,sco
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macs OUT,OUT,DELAY,GAIN
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endm
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IIR macro OUT, IN , DLXC, DLYC
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macs out_tmp,C_0,C_0,C_0
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BPF out_tmp,IN,DLYC,DLXC,c0,F0_31Hz
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BPF out_tmp,IN,DLYC+2,DLXC,c1,F1_62Hz
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BPF out_tmp,IN,DLYC+4,DLXC,c2,F2_125Hz
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BPF out_tmp,IN,DLYC+6,DLXC,c3,F3_250Hz
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BPF out_tmp,IN,DLYC+8,DLXC,c4,F4_500Hz
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BPF out_tmp,IN,DLYC+10,DLXC,c5,F5_1000Hz
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BPF out_tmp,IN,DLYC+12,DLXC,c6,F6_2000Hz
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BPF out_tmp,IN,DLYC+14,DLXC,c7,F7_4000Hz
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BPF out_tmp,IN,DLYC+16,DLXC,c8,F8_8000Hz
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BPF out_tmp,IN,DLYC+18,DLXC,c9,F9_16000Hz
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macs DLXC+1,DLXC,C_0,C_0
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macs DLXC,IN,C_0,C_0
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macs1 tmp,IN,IN,Equalizer
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macs tmp,tmp,out_tmp,Equalizer
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macs OUT,tmp,out_tmp,Equalizer
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endm
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IIR toutl,inl,dlx0,dly0
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IIR toutr,inr,dlx1,dly1
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IIR toutrl,inrl,dlx2,dly2
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IIR toutrr,inrr,dlx3,dly3
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IIR toutc,inc,dlx4,dly4
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IIR toutlfe,inlfe,dlx5,dly5
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end
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