Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 According to a doc I found... Frequency is calculated as follows... remembering the high bit of the Freq register turns the voice on/off, so we have 7 bits per voice Freqency resolution: Bass freq = Phi2/256/(255-F) Alto freq = Phi2/128/(255-F) Soprano freq = Phi2/64/(255-F) Noise freq f=Phi2/32/(255-F) PAL Phi2 clock is 1108404.5 MHz so...actually... now we can generate a lookup table? Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 oooh... no 360 version? damned... would be so cool after watching the youtube video... Quote Link to comment Share on other sites More sharing options...
Rybags Posted June 24, 2009 Share Posted June 24, 2009 I think this should work. I did a spreadsheet which calculates actual frequencies and the AUDF matching value for the VIC Soprano Voice (VIC + $0C) VIC Frequency AUDF Soprano 128 136.3686024 231.8761859 129 137.4508929 230.0425152 130 138.5505 228.2088444 131 139.6678427 226.3751737 132 140.8033537 224.5415029 133 141.9574795 222.7078322 134 143.1306818 220.8741614 135 144.3234375 219.0404907 136 145.5362395 217.2068199 137 146.7695975 215.3731491 138 148.0240385 213.5394784 139 149.3001078 211.7058076 140 150.5983696 209.8721369 141 151.9194079 208.0384661 142 153.2638274 206.2047954 143 154.6322545 204.3711246 144 156.0253378 202.5374539 145 157.44375 200.7037831 146 158.8881881 198.8701123 147 160.359375 197.0364416 148 161.8580607 195.2027708 149 163.3850236 193.3691001 150 164.9410714 191.5354293 151 166.5270433 189.7017586 152 168.1438107 187.8680878 153 169.7922794 186.0344171 154 171.4733911 184.2007463 155 173.188125 182.3670755 156 174.9375 180.5334048 157 176.7225765 178.699734 158 178.5444588 176.8660633 159 180.4042969 175.0323925 160 182.3032895 173.1987218 161 184.2426862 171.365051 162 186.2237903 169.5313803 163 188.247962 167.6977095 164 190.3166209 165.8640387 165 192.43125 164.030368 166 194.5933989 162.1966972 167 196.8046875 160.3630265 168 199.0668103 158.5293557 169 201.3815407 156.695685 170 203.7507353 154.8620142 171 206.1763393 153.0283435 172 208.6603916 151.1946727 173 211.2050305 149.3610019 174 213.8125 147.5273312 175 216.4851563 145.6936604 176 219.2254747 143.8599897 177 222.0360577 142.0263189 178 224.9196429 140.1926482 179 227.8791118 138.3589774 180 230.9175 136.5253067 181 234.0380068 134.6916359 182 237.2440068 132.8579651 183 240.5390625 131.0242944 184 243.9269366 129.1906236 185 247.4116071 127.3569529 186 250.9972826 125.5232821 187 254.6884191 123.6896114 188 258.4897388 121.8559406 189 262.40625 120.0222699 190 266.4432692 118.1885991 191 270.6064453 116.3549283 192 274.9017857 114.5212576 193 279.3356855 112.6875868 194 283.914959 110.8539161 195 288.646875 109.0202453 196 293.5391949 107.1865746 197 298.6002155 105.3529038 198 303.8388158 103.5192331 199 309.2645089 101.6855623 200 314.8875 99.85189155 201 320.71875 98.01822079 202 326.7700472 96.18455004 203 333.0540865 94.35087928 204 339.5845588 92.51720853 205 346.37625 90.68353777 206 353.4451531 88.84986702 207 360.8085938 87.01619626 208 368.4853723 85.18252551 209 376.4959239 83.34885475 210 384.8625 81.51518399 211 393.609375 79.68151324 212 402.7630814 77.84784248 213 412.3526786 76.01417173 214 422.410061 74.18050097 215 432.9703125 72.34683022 216 444.0721154 70.51315946 217 455.7582237 68.67948871 218 468.0760135 66.84581795 219 481.078125 65.0121472 220 494.8232143 63.17847644 221 509.3768382 61.34480568 222 524.8125 59.51113493 223 541.2128906 57.67746417 224 558.671371 55.84379342 225 577.29375 54.01012266 226 597.200431 52.17645191 227 618.5290179 50.34278115 228 641.4375 48.5091104 229 666.1081731 46.67543964 230 692.7525 44.84176889 231 721.6171875 43.00809813 232 752.9918478 41.17442737 233 787.21875 39.34075662 234 824.7053571 37.50708586 235 865.940625 35.67341511 236 911.5164474 33.83974435 237 962.15625 32.0060736 238 1018.753676 30.17240284 239 1082.425781 28.33873209 240 1154.5875 26.50506133 241 1237.058036 24.67139058 242 1332.216346 22.83771982 243 1443.234375 21.00404907 244 1574.4375 19.17037831 245 1731.88125 17.33670755 246 1924.3125 15.5030368 247 2164.851563 13.66936604 248 2474.116071 11.83569529 249 2886.46875 10.00202453 250 3463.7625 8.168353777 251 4329.703125 6.334683022 252 5772.9375 4.501012266 253 8659.40625 2.667341511 254 17318.8125 0.833670755 Quote Link to comment Share on other sites More sharing options...
Rybags Posted June 24, 2009 Share Posted June 24, 2009 (edited) Seems OK... to test, fire up both emulators and just play the sounds side by side. You should get flanging similar to playing 2 near notes on a single machine. ed - here's a spreadsheet with Bass, Alto, Soprano to AUDF conversions. Plenty of out of range values there... of course that means where dealing with lower frequencies than we can do in 64 Khz mode. VIC_to_A8_sounds.zip Edited June 24, 2009 by Rybags Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 Seems OK... to test, fire up both emulators and just play the sounds side by side. You should get flanging similar to playing 2 near notes on a single machine. cool.coool.... so it would be a piece of cake for you to give me the other 2 tables? and how do we simulating the noise channel? Quote Link to comment Share on other sites More sharing options...
Rybags Posted June 24, 2009 Share Posted June 24, 2009 Added Excel worksheet into the post above. I only tested a few values from Soprano... others should be OK. Quote Link to comment Share on other sites More sharing options...
Tezz Posted June 24, 2009 Share Posted June 24, 2009 cool, I thought I was the only one who used Excel like that. Strange RE XBLA with +++? I thought that was the purpose of the games dev? I wonder what went on. Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 btw... the lookup tables could be generated by MADS? Quote Link to comment Share on other sites More sharing options...
+Stephen Posted June 24, 2009 Share Posted June 24, 2009 cool, I thought I was the only one who used Excel like that. Strange RE XBLA with +++? I thought that was the purpose of the games dev? I wonder what went on. Sadly, I believe it was down to extremely poor sales of Space Giraffe. It's still coming out for PC (I got Space Giraffe on both platforms). Stephen Anderson Quote Link to comment Share on other sites More sharing options...
Tezz Posted June 24, 2009 Share Posted June 24, 2009 ah right, that would make sense. That's a shame. Perhaps if the PC sales reach a decent level it might make a later appearance but probably not in this age of massive devs and associated money Quote Link to comment Share on other sites More sharing options...
xxl Posted June 24, 2009 Share Posted June 24, 2009 nice game Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 i have importated first channel ;VIC20 sound channel to pokey tab ;channel 0 .byte 232,230,228,226,225,223,221,219,217,215 .byte 214,212,210,208,206,204,203,201,199,197 .byte 195,193,192,190,188,186,184,182,181,179 .byte 177,175,173,171,170,168,166,164,162,160 .byte 159,157,155,153,151,149,148,146,144,142 .byte 140,138,137,135,133,131,129,127,126,124 .byte 122,120,118,116,115,113,111,109,107,105 .byte 104,102,100,98,96,94,93,91,89,87,85,83 .byte 82,80,78,76,74,72,71,69,67,65,63,61,60 .byte 58,56,54,52,50,49,47,45,43,41,39,38,36 .byte 34,32,30,28,27,25,23,21,19,17,16,14,12 .byte 10,8,6,5,3,1 so...actually i would do this? (which actually does not work) lda #0 ldx $900a bmi ... lda channel0,x ... sta $d200 ??? actually it does not work... Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 cool, I thought I was the only one who used Excel like that. Strange RE XBLA with +++? I thought that was the purpose of the games dev? I wonder what went on. Sadly, I believe it was down to extremely poor sales of Space Giraffe. It's still coming out for PC (I got Space Giraffe on both platforms). Stephen Anderson space giraffe rocks on 360... I have to admit that I love most of Jeff games (played hours T2000 on Jag)... man... he IS one of the last stars... but 360 is strong in US so I doubt that they will jump on the Jeff tripp... Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 i have importated first channel ;VIC20 sound channel to pokey tab ;channel 0 .byte 232,230,228,226,225,223,221,219,217,215 .byte 214,212,210,208,206,204,203,201,199,197 .byte 195,193,192,190,188,186,184,182,181,179 .byte 177,175,173,171,170,168,166,164,162,160 .byte 159,157,155,153,151,149,148,146,144,142 .byte 140,138,137,135,133,131,129,127,126,124 .byte 122,120,118,116,115,113,111,109,107,105 .byte 104,102,100,98,96,94,93,91,89,87,85,83 .byte 82,80,78,76,74,72,71,69,67,65,63,61,60 .byte 58,56,54,52,50,49,47,45,43,41,39,38,36 .byte 34,32,30,28,27,25,23,21,19,17,16,14,12 .byte 10,8,6,5,3,1 so...actually i would do this? (which actually does not work) lda #0 ldx $900a bmi ... lda channel0,x ... sta $d200 ??? actually it does not work... ok... because exchange BMI with BPL Quote Link to comment Share on other sites More sharing options...
ivop Posted June 24, 2009 Share Posted June 24, 2009 (edited) i have importated first channel ;VIC20 sound channel to pokey tab ;channel 0 .byte 232,230,228,226,225,223,221,219,217,215 .byte 214,212,210,208,206,204,203,201,199,197 .byte 195,193,192,190,188,186,184,182,181,179 .byte 177,175,173,171,170,168,166,164,162,160 .byte 159,157,155,153,151,149,148,146,144,142 .byte 140,138,137,135,133,131,129,127,126,124 .byte 122,120,118,116,115,113,111,109,107,105 .byte 104,102,100,98,96,94,93,91,89,87,85,83 .byte 82,80,78,76,74,72,71,69,67,65,63,61,60 .byte 58,56,54,52,50,49,47,45,43,41,39,38,36 .byte 34,32,30,28,27,25,23,21,19,17,16,14,12 .byte 10,8,6,5,3,1 so...actually i would do this? (which actually does not work) lda #0 ldx $900a bmi ... lda channel0,x ... sta $d200 ??? actually it does not work... IMHO you can just use: lda $900a eor #255 sta $d200 If the octave doesn't match, insert the following between the eor and sta: lsr ; repeat for each octave up or asl ; repeat for each octave down so, two octaves down is: lda $900a eor #255 asl asl sta $d200 etc... Edited June 24, 2009 by ivop Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 small update... but sound still not good... gridrunner.zip Quote Link to comment Share on other sites More sharing options...
ivop Posted June 24, 2009 Share Posted June 24, 2009 small update... but sound still not good... I just tried changing $d208 to $01 (15kHz clock) and it starts to sound better. I think the shooting sound is ok then. The high pitched sound is still there though. I guess that channel needs to be lowered a lot. Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 24, 2009 Author Share Posted June 24, 2009 cool... will check that tomorrow... too long coding last night. need rest. Quote Link to comment Share on other sites More sharing options...
Rybags Posted June 25, 2009 Share Posted June 25, 2009 You'd need to change the code for the translation table lookup. More like LDX VICFREQ BPL NOSOUND ; don't play sound LDA TRANSTABLE-128,X STA AUDF1 etc I guess for the "No sound" condition on a voice, it would just be sufficient to store 00 in AUDC for that voice. Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 25, 2009 Author Share Posted June 25, 2009 thx Rybags, will have a look... Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted June 25, 2009 Share Posted June 25, 2009 Nice article in today's Micro Mart about this... great work! Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 25, 2009 Author Share Posted June 25, 2009 about what? me? Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted June 27, 2009 Share Posted June 27, 2009 about what? me? Quote Link to comment Share on other sites More sharing options...
Rybags Posted June 27, 2009 Share Posted June 27, 2009 Shit, eh? Never know, maybe they'll get you up for an interview. So, has this magazine of theirs been covering our other advances in the scene, like VBXE, XLerator, and Interlaced graphics? Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted June 27, 2009 Share Posted June 27, 2009 (edited) So, has this magazine of theirs been covering our other advances in the scene, like VBXE, XLerator, and Interlaced graphics? The column tends to cover games mainly, but the Atari has been getting a lot more coverage lately. I was kind of hoping to get a mention in there myself! Edited June 27, 2009 by flashjazzcat Quote Link to comment Share on other sites More sharing options...
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