Don't mistake phase reversal of the modulation source with phase reversal of
the VCO output. They are two different things. The four quadrant modulator
input just means that the Linear FM source can be amplified by both a 0 to
positive signal and by a 0 to negative signal, instead of just 0 to positive
like a VCA.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com
the VCO output. They are two different things. The four quadrant modulator
input just means that the Linear FM source can be amplified by both a 0 to
positive signal and by a 0 to negative signal, instead of just 0 to positive
like a VCA.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com
> -----Original Message-----
> From: SergeModular@yahoogroups.com [mailto:SergeModular@yahoogroups.com]
> On Behalf Of John P
> Sent: Thursday, December 08, 2005 10:24 PM
> To: SergeModular@yahoogroups.com
> Subject: Re: [SergeModular] Re: The Amazing New Zeroscillator!
>
> hmm... according to the web page, it uses a four quadrant multiplier
> instead of a vca to modulate the depth of the fm.
> so if you have a ring modulator in your rig then you can get the same
> effect? route your fm modulating signal to 'signal' of your ring mod,
> and the depth modulating signal to the 'carrier', and send the ring mod
> output to your normal fm linear input. might be fun to try....
>