rbox wrote:It is NOT possible to reproduce the SY-99 Sounds with the MOD-7, here are the reasons:
-SY99 envelopes has 7 segments Mod-7`s only 5.
You're absolutely correct that the SY series envelopes have more segments. Whether or not this is an advantage depends on what you use the segments for. The first SY segment is delay, which can be done using EG triggering on the MOD-7. Since the SY does not have programmable curvature, I'd guess that some segments (especially the second release segment) are often used to approximate other curve shapes.
Once you've eliminated the delay and 2nd release segments, you're back to 5 - just like the MOD-7.
rbox wrote:-SY99 has 3 Feedbackloops and there are free routeable, Mod-7 has only 2 Feedbackloops and there are "fixed".
Actually, the MOD-7 is fully patchable, with two inputs per oscillator, any and all of which can be used for feedback loops from anywhere and to anywhere else (12 total). Filters, waveshaping, ring modulation, and mixers can be included in the loops, of course.
Each VPM oscillator also has a dedicated internal feedback loop, routing the oscillator back into itself (and unlike the Yamaha synths, this can either use or bypass the amp modulation). That would be 18 feedback loops total, but who's counting.
rbox wrote:-the Filters of Mod-7(so the overall Oasys) sounds too clean with a small sweet spot in sound.
Well, I guess that's a matter of taste. I'm quite happy with the standard OASYS filters, with their resonance up to 20kHz (unlike many digital synths). I also like the very different, and somewhat dirtier, filters in the PolysixEX and MS-20EX. In general, the OASYS certainly is "clean," since it has fewer of the digital-only strangenesses that plague many other synths. I have to say that I find it doubtful that many would prefer the ancient SY digital filters, though I'll certainly take your word that you do personally.
rbox wrote:- you can use not only samples as a Modulator with the SY-99 , a whole AWM-Element with Filters and Envelopes is also possible as a modulator,
Of course, you can do this on the MOD-7 as well. The manual contains examples of doing so.
rbox wrote:you can also use samples as a carrier, samples on the mod-7 are ever modulators.
As with the MOD-7, the SY series allows samples only as modulators, not as carriers. Check the SY manuals if you like (I'd recommend the tutorial in the appendix of the SY99 manual, "Using RCM hybrid synthesis").
This makes sense, as FM modulation of complex waveforms (as samples generally are) often simply results in noise.
- Dan