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Hi Ti

Le 04/06/11 02:16, ty hodson a écrit :

> -- Regeneration... Is this the same as Resonance? If so, any
> significance to the different name? If not, what does Regeneration mean?
>
Yes it is the same, as already stated Regeneration is a reference to Dr who.

> -- Two Control Inputs... Do they control two different things? Or are
> they combined? Do they only affect the frequency cutoff?
>
Yes they are the same, this makes it possible to plug-in various 
modulation sources at the same time. As in all modular synths, the more 
inputs the more fun. They are all controlling the cut-off

> -- FM Input... I don't think I've ever encountered a filter with an
> "onboard" FM Input... What advantages are there for having this input on
> the filter versus performing the FM before the filter is added to the
> signal chain?
>
Yes it is the same as CV input.  When doing FM ( I mean DX7 like FM, 
because FM is not only meaning DX7 like ) with a filter you need only a 
modulation VCO, no signal VCO, for this you must set the filter to 
auto-oscillation.

> *+ Sea Devils *- http://stgsoundlabs.com/products/sea_devils_filter_mu.htm
>
> -- While A/B'ing the two filters with the same oscillator (triangle
> wave) source, I noticed that the output of the Sea Devils filter was
> substantially lower than the Post-Lawsuit filter. Is that expected? I
> don't mean to suggest that they -should- have the same perceived volume,
> but I was just curious.
>
No idea probably it is due to the original design choices of ARP and 
EMS, if you read
thoroughly my yusynth pages dedicated to these filters you'll see that 
for all filters
there is a buffer input and buffer output stage and for both you may 
adjust the gain resistor in order to obtain the desired input and output 
levels

> *+ Post-Lawsuit *-
> http://stgsoundlabs.com/products/post_lawsuit_lowpass_filter_mu.htm
>
> -- Two Audio Inputs... How does a second audio input differ from an FM
> Input?
>
This has nothing to with a FM input, it's just a mixing input for a 
second audio source.

> -- No Regeneration Input... Was that a design decision based on the
> additional Audio Input that had to be accommodated?

No regeneration input because the ARP filter does not provide this 
possibility for this. The EMS filter offered this hidden feature in its 
design and I chose to unveil it.

-- 
Yves Usson
http://yusynth.net