[sdiy] FM Synth Designs

Moho Disco moho at mohodisco.com
Tue Aug 13 08:37:32 CEST 2002


So, where can we see pics/info about this Bohm 12/24?... I did a Google search
and came up with nothing...

Lava

At 01:01 AM 8/13/2002 +0200, Theo wrote:
>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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> >                    Portland Technology Development
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> >                   E-Mail: dbalvage at ptdcs2.ra.intel.com
> >
> >
> >
> >
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