From yahoo Sent Wed, Feb 15th 2017, 08:54
Hello, the A-110-6 design has been finished already and the module is already in production. I hope it will be available about April 2017. Maybe it's possible to realize the VC phase shifting as an additional module. Best wishes Dieter Doepfer > -----Ursprüngliche Nachricht----- > Von: xxxxxxx_xxxx@xxxxxxxxxxx.xxx [mailto:xxxxxxx_xxxx@xxxxxxxxxxx.xxx] > Gesendet: Dienstag, 14. Februar 2017 21:26 > An: xxxxxxx_xxxx@xxxxxxxxxxx.xxx > Betreff: [Doepfer_a100] A-110-6 Voltage Controlled Phase Shift? > > > > > Dear Dieter, > > > I know that the production design of the A-110-6 quadrature > trapezoid VCO has probably been finalised, but hopefully this is > something you would consider implementing? I was reading J. > Donald Tillman's article on quadrature trapezoid VCO design: > http://www.till.com/articles/QuadTrapVCO/discussion.html > > > > And discovered that it is possible to voltage control the phase > shift? Would this be possible on the A-110-6? In my opinion it > could become one of the most powerful features of this VCO. > > > Voltage Controlled Phase Shift > The quadrature trapezoid core also enables the implementation of > voltage controlled phase shift over a multiple cycle range. I'll > cover the details of this in a later article. > While the Yamaha DX7 synthesizer is well known for its use of FM > Synthesis, it really works with phase modulation. (The phrase FM > Synthesis is used as a generic term to describe both frequency > and phase modulation.) So analog versions of many DX-7 > algorithms are good applications for voltage controlled phase shift. > > > > > Audio rate phase modulation can produce some amazing glassy > FM-like sounds without pitch drift. In eurorack Malekko Richter > Oscillator II and Schippmann CS-8 Omega-Phi have phase modulation > capabilities but since adopting a 100% Doepfer A-100 system I > feel we are missing out on these sounds. At LFO rate we can > achieve chorus / supersaw like sounds. > > > It is possible to approximate similar sounds via Lin FM on > A-110-4, but the pitch drift makes it less suitable for pitch > perfect musical applications. Here is an older demo of mine > exploring audio rate phase modulation feature on the Richter > Oscillator II: > https://soundcloud.com/sfx-lab/malekko-richter-oscillator-ii-phase > -modulation-demo > > > > Is this something you have considered or would consider > implementing on the A-110-6 or as a follow up model? > > > Thank you very much! Really looking forward to exploring your new designs. > > > Best wishes, > Vytis Puronas > > > > ------------------------------------ ------------------------------------ ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Doepfer_a100/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Doepfer_a100/join (Yahoo! ID required) <*> To change settings via email: xxxxxxx_xxxx-xxxxxx@xxxxxxxxxxx.xxx xxxxxxx_xxxx-xxxxxxxxxxxx@xxxxxxxxxxx.xxx <*> To unsubscribe from this group, send an email to: xxxxxxx_xxxx-xxxxxxxxxxx@xxxxxxxxxxx.xxx <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/