video upload by Plogue Art et Technologie, Inc.
"Video concept and production Mathew Valente (@tssf ) Music: Vectrax: Space Man / space-man"
Emulating the OPZ the HARD way
video upload by plgDavid
chipresearch episode 0x09 00:00 Intro 01:35 MSX Origins 03:05 Arcade Uses 08:02 OPM 21:32 OPP 25:38 OPZ 29:24 OPZ2 32:22 Outro rant
Once again, we've done it. We've meticulously recreated the original OPM (YM2151), OPP (YM2164), OPZ (YM2414) and OPZ2 (YM2424) sound chips in deep emulation from numerous digital captures, including the very many undocumented features. For instance, chipsynth OPMZ allows you to use the OPM's CSM mode in music. We also have a full recreation of the exact pattern and mechanics of its often neglected noise generator, and all the exact quirks of its LFO.
The OPZ chip used in the TX81Z was completely undocumented before the development of chipsynth OPMZ, and so we've done a full reverse engineering, discovering all the mysterious register overlays and previously unknown functionality such as internal volume ramping.
We've also done a deep dive on how exactly Yamaha themselves used the chips in the DX100, DX27, DX21, TX81Z and DX11 synthesizers, including their behaviour and analogue output stage and the DX21's chorus, making the whole package virtually identical.
Just as before, chipsynth OPMZ is based on human researched and programmed emulation code."
"Get chipsynth OPMZ here https://plogue.com/products/chipsynth...
Thank you!"
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