I actually published my method to gather the combined waveform data for each of our SIDs more than ten years ago:
http://ploguechipsounds.blogspot.com/20 ... tures.html
Our new research is more advanced, but its not ready for publication.
Cheers
I actually published my method to gather the combined waveform data for each of our SIDs more than ten years ago:
davidv@plogue wrote: ↑Tue Jul 21, 2020 7:07 pmI actually published my method to gather the combined waveform data for each of our SIDs more than ten years ago:
http://ploguechipsounds.blogspot.com/20 ... tures.html
Our new research is more advanced, but its not ready for publication.
Cheers
Thanks for sharing, David. It will be interesting to learn how you folks have improved upon your methods from 2010.Plogue R&D wrote:... After recording a huge bunch of very different [combined SID waveforms], however, I can't help but feel that there is no "perfect" way to go at this. As each SID will generate something different, why not add some non-deterministic aspects into the generation?
In the mean time, we can reasonably emulate the combined waveforms of the SID (which are really an odd mixture of bits in the analog world) by indexing a pre-recorded table ...
The alternative would be the to set the Pitch Modulation's LFO Type to user1 or user2 and draw the exact (or similar) pattern into USER LFO 1 or 2 (I vividly recall what you mean but haven't analysed the pattern exaclty)briefcasemanx wrote: ↑Sun Aug 16, 2020 6:49 pm Does anyone know if there's a way to do a very fine adjustment of pitch (like in cents) in the wave sequencer in chipsounds?
Except then it would repeat, which is why I'd need a "one shot" mode for the LFO. It's strange that fine pitch adjustment isn't programmable in the wave sequencer, since this is very common in old games.davidv@plogue wrote: ↑Sun Aug 16, 2020 8:44 pmThe alternative would be the to set the Pitch Modulation's LFO Type to user1 or user2 and draw the exact (or similar) pattern into USER LFO 1 or 2 (I vividly recall what you mean but haven't analysed the pattern exaclty)briefcasemanx wrote: ↑Sun Aug 16, 2020 6:49 pm Does anyone know if there's a way to do a very fine adjustment of pitch (like in cents) in the wave sequencer in chipsounds?
Cheers
You are indeed right.briefcasemanx wrote: ↑Tue Aug 18, 2020 6:16 am Except then it would repeat, which is why I'd need a "one shot" mode for the LFO. It's strange that fine pitch adjustment isn't programmable in the wave sequencer, since this is very common in old games.
C64 and NES sound formats (PSID/RSID/NSF/NSFE) do not contain 'patches' in the typical FM sense but actual 8bit 6502 processor instructions that tell the system how to play full songs and how to modulate the few parameters exposed by those chips in real time. So one must study how parameter automation is applied by those routines and reconstruct modulation tables from that. Its not trivial, but definitely an area of great interest of mine. Can't really disclose more for now.
AAAAAAAAAAANERF_PROTOSS wrote: ↑Thu Sep 10, 2020 12:27 am https://twitter.com/plgDavid/status/1302983827099398148
Yeah sorry about this. Looking at the cause now.
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