Hi Gregory,

long time no see :) Glad to see people have be makin' use of the
707/727 envelope mods + audio inputs i posted to AH years ago. I've
got the full 727 schematics from mark glinksy, but they're A4 so I
don't know how i'd scan them, maybe 4MP digital photos would suffice
if they were well lit.

Anyways, I brought up the binaries because of two issues;

- Colin Fraser was tempted to modify the 707/727 firmware a few years
back so it could output midi in patter play mode. Perhaps if I
provided him with the firmware he'd take a crack at it finally. He
owns a 727 himself, so it must be of some interest to him.

- The sound roms would also be cool to examine. For reasons of
"extracting" the current samples (compressed and unfiltered/or
dynamics).....and also figuring out how to burn sounds to new ROMs for
them (the current ones are read-only).

I think anything is possible really. I upgraded my Casio Sk-8 toy
sampler to have 16 banks of memory, so once you've done a mod like
that....evrything seem plausable :)

Cheers

Ryan (plutonique9)

--- In tr-707@yahoogroups.com , "gregory zifcak" <foleymachine@...> wrote:
>
> hmmm.
>
> well if someone can make a case for the value of reading the binaries
> i'll pay postage and send them out. i don't have spare 707 chips
> though, so maybe someone else wants to send those. burning new sounds
> seems like a cool idea if it's possible, but i'm kind of more
> interested in chopping up my 909 at the moment. my 70727 (
> http://userwww.sfsu.edu/%7Egzifcak/tr-707.html ) is pretty much a
> finished piece unless something drastically cool pops up.
>
> anyone
>
>
>
> --- In tr-707@yahoogroups.com , "kingconga42" <kingconga8@> wrote:
> >
> > if you pay for postage both ways, i'll read them, send them back,
> and post the
> > BINs here. (small files)
> >
> > I'd love to figure out how to burn my own sounds. I've been having
this
> > discussion with a few people from this forum and others. The machine
> i want
> > to do this with is the HR-16. I even emailed mr. HR-16 himself,
> craig anderton
> > (he literally wrote the book on the HR-16), to see if he had any
> insight into this.
> > He responded to my email within hours, saying he'd forward it to
> alesis, but
> > that ended up being a dead end. The service manual offered a bit more
> > insight, but i'm still not there yet.....
> >
> > I dont have a 707, but my bandmate does, and i have a 505. I know
> from CJ
> > on this forum, that the roland machines are very tricky in this
regard:
> > http://launch.groups.yahoo.com/group/tr-707/message/185
> > In addition to sound data on the voice chips, the audio gets
> processed by
> > filters and ADSRs. And not all the sounds are the same bitrate. By
> contrast,
> > the HR-16s sounds (i THINK) are all the same bitrate, and only get
> minor
> > volume processing (i THINK).
> >
> > So, IN THEORY- you could take a 707 BIN file, open it up as raw data
> in an
> > audio editor (but you'd need to know the proper bitrate, etc.),
> replace some of
> > that data with your own, save a new BIN, and burn that to a new
> chip. IN
> > THEORY. As an experiment, you might want to take a 727 drum sound,
and
> > copy and paste it to replace the coresponding 707 drum sound, and
> see if
> > your new chip will have the new sound on it. I haven't tried this
> yet, but a friend
> > of mine has, with the HR, and also with the casio sk1. He hasn't had
> any luck
> > so far, even just changing little things. The new rom will either
> not work at all,
> > or have undesired results. I think it's because he's converting from
> data to
> > .wav and back. Maybe the bitrate is slightly off, which would throw
> everything
> > off. I'll be doing my own experiments with the HR-16 roms soon.
> >
> > So, long story short- yes, i can copy the roms. But it might be very
> tricky to get
> > your own sounds on them.
> >
> > -justin
> > = burnkit2600.com =
> >
> > --- In tr-707@yahoogroups.com , "gregory zifcak" <foleymachine@> wrote:
> > >
> > > well, i do have some spare 727 chips. would that be good enough for
> > > both machines i didn't use no chip desolderer though, i just undo
> > > those suckers by hand (and solder wick).
> > >
> > > i'd be down to send them to you if you send them back after you
> read them.
> > >
> > > so, once you do this you can figure out what needs to be where in
> > > those chips and burn your own new sounds onto new ones
> > >
> > > p9, is this what you have in mind
> > >
> > >
> > > --- In tr-707@yahoogroups.com , "kingconga42" <kingconga8@> wrote:
> > > >
> > > > you would need a chip burner.
> > > > Are the chips in the 707 socketed if not, you would need a chip
> > > desolderer to
> > > > pull them out, and have your chip burner read them. I've done this
> > > with an
> > > > hr-16, but i dont have a 707 or 727. i have a 505, tho....
> > > >
> > > > Send me your chips, and i'll read them for you =]
> > > >
> > > > -justin
> > > > = burnkit2600.com =
> > > >
> > > > --- In tr-707@yahoogroups.com , "gregory zifcak" <foleymachine@>
> wrote:
> > > > >
> > > > > no, i don't know how to do any of that stuff. what does it take
> > > > > hooking the pins up to some type of computer input and
> triggering the
> > > > > sounds cj might have something, he seems keen on burning new
> ones.
> > > > >
> > > > > --- In tr-707@yahoogroups.com , "plutoniq9" <Plutonique9@> wrote:
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > Anyone got ROM binaries from the 707 &/Or 727 I'm thinkin'
> > > it will
> > > > > > be gregory if any one :)
> > > > > >
> > > > > > Ryan (Plutonique9)
> > > > > >
> > > > >
> > > >
> > >
> >
>