Hi Alexandre, Someone a long time ago made a DX7 in Csound, don't remember names but I might have it in somewhere. If I find I'll send it to you, may be will help you.
Abraço, James On 6 November 2015 at 16:50, Alexandre Torres Porres <[email protected]> wrote: > here's the discussion from the forum, I could also try reviving that > thread :) > > http://forum.pdpatchrepo.info/topic/6185/feedback-fm-algorithm/2 > > 2015-11-06 16:49 GMT-02:00 Alexandre Torres Porres <[email protected]>: > >> >> Howdy, I'm just trying to understand how the Feedback modulation works in >> FM8 (from NI) and how it really is the same as in DX7. I'm actually also >> using SuperCollider, which provides a self modulating oscillator >> (SinOscFB), but it just burst and blows up in noise way before the FM8 does >> with the same modulation index. I've made an equivalent patch in Pd for >> SinOscFB. Now, I know that in Supercollider there is no filter in the >> feedback, and I was researching around the web and found out about the DX7 >> patents where they described the usage of a mean filter in the feedback >> loop. Here's the patent >> http://www.google.com/patents/US4249447?dq=4249447&ei=7vK4T_m5LKOH6QHH2pTsCg >> >> this was actually discussed in a Pd Forum. I tried the mean filter in the >> feedback loop, but it doesn't really sound closer to FM8's self modulating >> oscillator. FM8 is supposed to be a kind of perfect clone to DX7. I don't >> have a DX7, but I have FM8, so I'm using it as a guide to recreate DX7 >> patches in Pd. >> >> This may be a long shot, but I wonder if anyone out there could help me >> out nailing the perfect sound and behaviour of the self phase modulating >> oscillator. >> >> thanks >> >> > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > >
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