[sdiy] FM Synth Designs

[Theo]

Duno how things are now but some years ago Korg was 40% owned by Yamaha and
both shared the same production plant.

Meanwhile there was the Bohm thing.
The Bohm 12/24 expanders hit the market around the same time as the TX7, way
before the Korg stuff.
The 12/24 where 4 operator and among the first multi-timbal (sp?) units
available, Yamahas own stuff was still mono-timbal.
Yamaha never trade FM technology for Bohm drum stuff and the Bohm 12/24
expanders where PhaseModulation and had nothing to do with Yamaha FM. At
least that is what marketing guys said. Oddly enough the DX and 12/24 eat
each other sysex dumps, it must have been a bug in my system ;-p

Theo


From: Tim Parkhurst <tparkhurst at siliconbandwidth.com>

> Hey Duane,
>
> Now that you mention it, I do remember that. I could have sworn that Korg
> and Yamaha had a licensing agreement worked out where Korg would get FM,
and
> Yamaha would get some PCM sampling tricks that had made Korg workstations
so
> popular at the time. I could be seriously wrong on this, but vaguely seem
to
> recall reading it in Keyboard. At any rate, I can easily believe Korg
would
> get their butts sued off if they tried to market the 707 and the DS-8
> without talking to Yamaha first.
>
> Tim Servo
>
> *********************************************************
> -----Original Message-----
> From: Duane R Balvage [mailto:dbalvage at ptdcs2.ra.intel.com]
> Sent: Monday, August 12, 2002 2:57 PM
> To: Tim Parkhurst; Synth-DIY List
> Subject: Re: [sdiy] FM Synth Designs
>
> Hiya Tim -
>
> > Yamaha owns the patent on FM synthesis (bought it from Stanford
University
> > where it was originally developed by John Chowning), and they defend the
> > patent with a VERY heavy hand. At one point, they even tried to sue an
> > analog synth manufacturer (Moog, I believe) because the owner's manual
for
> a
> > VCO module stated that the linear CV input on the VCO allowed FM
> synthesis.
> >
> > If anyone tried to make a commercial FM synth, I'm sure Yamaha would be
> > happy to send a team of lawyers in their direction.
>
> Um.. This already happened! Remember the ill fated Korg 707 and DS-8? Both
> FM, both
> kinda sucked, and both got Korg into MUCHAS hot water with Yamaha...
that's
> why they are
> kind of a "rare" synth,each being produced for only about a year before
they
> got their
> hand slapped with a "cease and desist" order from Yamaha...!
>
> -Duane
>
>
>
>
>
> --
>
>
>        "A word to the wise ain't necessary. It's the stupid ones
>                            who need the advice."
> - Bill Cosby
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>
>
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