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
<cr1901_modern>
I could be wrong, but I thought Aztech made Sound Blaster clones
<whitequark>
i think it supports uh, lots of things, sound blaster included
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<cr1901_modern>
I have a relabeled Aztech card in my Packard Bell (w/ Packard Bell stickers covering the ICs). Dunno what version it actually is tho.
<cr1901_modern>
NetBSD just treats it as a SB clone
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<cr1901_modern>
Random thought: I don't really feel like organizing this, but anyone want to pool money together for a Super Blooper PCB run? cc: ej5
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<Wohali>
cr1901_modern: i can do the run for you @ jlcpcb and you can get them a lot cheaper that way if you want. Can also a a DRC if you need one...
<ej5>
the vogons people seem to be enjoying their build.
<cr1901_modern>
Wohali: Sounds like a good idea. I think DRC should already be done- it's ej5's design and it's been battle proven
<Wohali>
ah cool
<Wohali>
welp, if ej5 can provide the gerbers or the design (eagle? kicad? diptrace?) i can help
<cr1901_modern>
I may need someone to program the 8051 for me (unless I get around to adding support to open-tl866
<cr1901_modern>
Yaaay
<ej5>
it's already all on github
<cr1901_modern>
kicad design with full BOM. I don't plan on populating it right now. I just want a PCB to build at my own pace.
<ej5>
minipro under linux with the default tl866 firmware can program them
<cr1901_modern>
ej5: Sure, but like hell I'm installing the default firmware ever again :)
<cr1901_modern>
doesn't need to make sense
<cr1901_modern>
my logic* doesn't need to make sense
<ej5>
and i had an idea: put in a VCO to change the pitch of the SPO256 voice
<ej5>
turns out someone else on the internet already had the idea lol
<cr1901_modern>
I took a speech processing course long ago... didn't do the synthesis part
<cr1901_modern>
I'm curious how it works/looking at old datasheets now
<cr1901_modern>
the person who made the FPGA impl must've had a fun time
<ej5>
it uses a similar LPC codec as the TI stuff
<ej5>
they just recorded a bunch of allophones
<cr1901_modern>
right but there's a 12 pole LPC
<ej5>
string em together, and you can say arbitrary words
<cr1901_modern>
err Linear Prediction Filter
<cr1901_modern>
how do you even brute force that?!
<ej5>
i think it's been decapped and analyzed already
<cr1901_modern>
ahhh
<cr1901_modern>
the typical application circuit for standalone config is cute
<cr1901_modern>
you can directly breadboard it, add a DIP switch and button
<cr1901_modern>
and you have yourself a cute little chip to manually play with
<ej5>
yeah not as fun as being able to string together phrases
<cr1901_modern>
sure, I just like the idea of a breadboard playground
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<cr1901_modern>
So... if more ppl are awake now: who's interested in a Snark Barker (or Adlib clone) run?
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<cr1901_modern>
whitequark: Possible suggestion... encourage ppl contributing to Glasgow archive to include the original website URL where they downloaded it from if it's not datasheetarchive or vendor website. That way, someone looking for a similar part has a hint where to start looking
* cr1901_modern
should prob upload the OPL2 App Manual to archive now
<whitequark>
cr1901_modern: hrm
<cr1901_modern>
Just something to think about :)... when I upload the OPL2 App Manual, I'm gonna put as a blurb "I did not scan this, someone else found it, I got a copy. Since neither of us remember where they found it, its origin will likely forever remain a mystery."
<cr1901_modern>
In my headcanon, this is the "Conservation Of Lost Items" law at work- you lost something, and in exchange the OPL2 App Manual came out of the wormhole of lost items
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<cr1901_modern>
ej5: How much did your batch of adlib cards cost if you remember? And how much to get a bracket made (I don't have the right tools to create the holes)?
<cr1901_modern>
Also good evening :P
<ej5>
i made the bracket myself
<ej5>
the cards i bought from advanced circuits, $33 each. these days i'd go with pcbway
<ej5>
trick with the bracket is to get a metal hand punch
<ej5>
amazon has them, let me see if i can find it