ChanServ changed the topic of ##yamahasynths to: Channel dedicated to questions and discussion of Yamaha FM Synthesizer internals and corresponding REing. Discussion of synthesis methods similar to the Yamaha line of chips, Sound Blasters + clones, PCM chips like RF5C68, and CD theory of operation are also on-topic. Channel logs: https://freenode.irclog.whitequark.org/~h~yamahasynths
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<andlabs> protip: when on an airplane, if your bottle of coke doesn't close properly, don't risk putting it sideways in a bag with your computer
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<cr1901_modern> whitequark: Interesting... TIL: 1. There's an OPS2, 2. It also requires a second chip YM3609 (EGM) to work properly, and 3. The DX7 was released in variants beyond the original OPS.
<cr1901_modern> That said, that price is... well, I think I'd look for a cheap broken DX7 at that rate
<cr1901_modern> https://gist.github.com/bryc/e85315f758ff3eced19d2d4fdeef01c5 I wonder if I know the person who made this
<Lord_Nightmare> cr1901_modern: DX7 (and DX5?) use OPS and EGS (DX5 uses two of each? I forget), while DX7II/DX1(?) use OPS2 and EGM
<Lord_Nightmare> I think ops2/egm supports multiple(16?) patches/polyphony while ops/egs supports just one (or perhaps two)? I really don't remember, there's not a lot of public RE
<Sarayan> I'm pretty sure david knows
<Lord_Nightmare> I'm pretyy sure its OPS/EGS is one patch, and OPS2/EGM is up to 8 or 16 patches?
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<l_oliveira> Hey guys for the first time I stumbled upon some Seiko EPSON SRM2016C SRAMs in DIP form factor, it is eerily similar to some YM3438/YM2612 encapsulations
<l_oliveira> Could that maker be one of the foundries Yamaha was using to make these chips?
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<andlabs> I have a feeling the person who wrote the VGM player does not understand how the chip clock rates work
<Xyz_39809> OPLx is OG what are you talking about?