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DBM0 format specification update.Is there any documentation on how 4xx exactly works in DBPro? The vibrato depth seems to be approximately half of the depth of PT-compatible vibrato, but not quite.
Also, related to my efforts here, is there a way to get a registered DBPro 2.21 version for player developers for free? Obviously I am not interested in using DBPro as a musician, but I'd appreciate the ability to actually save my test cases in DBM format so that I can quickly compare OpenMPT's output vs. DBPro. I am certainly not going to pay for that. If you mean DigiBooster Pro 2.x, there is the source code of replayer. It is wrtitten entirely in M68k assembler, but readable. The source was released to the public, if you can't find it, I can provide a copy. As for DigiBooster 3, vibrato uses precalculated table of sine containing 64 values (one full period). Every table item contains tone deviation in 1/8 of halftone units, which is multiplied by depth parameter and scaled. Vibrato speed parameter is just increment value of the table index, applied every tick. I can give precise formulas if needed. This is a question to APC&TCP, I guess AndreasM can answer this.
write please a email to me with what you would make and what you need Andreas Magerl
Chefredaktion Amiga Future Ceo APC&TCP |