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Don Buchla implemented FM on his instruments in the mid-1960s, prior to Yamaha's patent. His 158, 258 and 259 dual oscillator modules had a specific FM control voltage input,[2] and the model 208 (Music Easel) had a modulation oscillator hard-wired to allow FM as well as AM of the primary oscillator.[3] These early applications used analog oscillators, and this capability was also followed by other modular synthesizers and portable synthesizers including Minimoog and ARP Odyssey.
source : http://en.wikipedia.org/wiki/Frequency_modulation_synthesis
IMHO the FM capabilities of the AN1x are more related to these glorious ancestors than to the DX series, despite the fact that both have been designed and manufactured by Yamaha. The "DX style" FM synthesis was used to match the performances of the early DSPs with a decent polyphony and sound. Sampling was too "memory consuming" (it will appear after with "AWM" and similar instruments), additive synthesis had its hardware limits too (despite Kawaï's K1... K4 series), and virtual analog was still out of reach.
Cheers.
J.F.
> Message du 23/12/14 14:16
> De : "Bruno brunorc@... [AN1x-list]" <AN1x-list@yahoogroups.com>
> A : AN1x-list@yahoogroups.com
> Copie à :
> Objet : Re: [AN1x] Re: Newbie-question. Sorry...
>
>>
2014-12-20 18:33 GMT+01:00 skseanking1@... [AN1x-list] <AN1x-list@yahoogroups.com>:the dx7 has no filter and you are doing nothing but fm,I kinda almost wish I had a tx7 because of how much room the dx takes up,
>One of the solutions is getting a TG-77 (the rack version of SY-77) - in theory it has "best of both worlds", since it comes with up to four layers of FM sounds, and its operators are not only limited to sine wave, so it's possible to get waves rich in harmonics without sacrificing operators. It also comes with some samples (AWM) - not the pinnacle of realism, according to modern standards, but enough for a transient part of the sound; surprisingly, they can be also used as modulators for the FM parts (it is called "Realtime Convolution"). Last but not least, it has a filter and two FX processors. Moreover, it's SysEx implementation is well documented (in a usual Yamaha way), so it's possible to use BCR2000 to have a kind of "analog" hands-on interface for FM.
>
> While AN1x is able to use FM, it is limited to two operators (oscillators), and it doesn't have dedicated pitch/amplitude envelopes per operator (with looping). Frankly, even though it lacks all the mentioned features, it's still a cool and relevant synth, and it can deliver interesting FM sounds.
>
> Cheers,
>
> Bruno
>