The Yamaha AN1x Synthesizer mailing list

--- In AN1x-list@yahoogroups.com, Alien Martian <alien1x@y...> wrote:
> --- Jon <jondl_2000@y...> wrote:
> > What is the Filter Cutoff value? Which Filter type
> > are you using? 
> > What is the Filter EG Depth value?  How exactly are
> > you using 
> > AN1xEdit and what effect do expect on the sound?
> > There really not 
> > enough info in your question to answer with anything
> > more than 
> > speculation...
> > 
> > Jon
>  Hi,
> The Filter cutoff value is =65
> Filter type = LPF12db
> Filter EG depth Value = 60
> 
> What I expect from the sound is to open the filter to
> let more of the sound through and varie thr frequency.
> 
> Its strange really, it works on other voices, but not
> on this one.
> 

I suggest you reduce the Filter EG value. Using such a large value for Depth is limiting 
the range of movement for the Cutoff from a large initial value as 65. Try the 
following to better understand how the Depth value and Cutoff interact:

VCF Cutoff = 0
FEG Depth = 0
-- now sweep the filter cutoff manually from 0-127. You should hear a dramatic 
change in the FC?

VCF Cutoff = 0
FEG Depth = +127
-- now sweep the filter cutoff manually from 0-127, don't here any change do you? 
Wide open all the time. Now try this:

VCF Cutoff = 0
FEG Depth = -127
-- now sweep the filter cutoff manually from 0-127. Just a little bit of change when 
you hit the peak level for the Cutoff value.

Now try the above again but this time adjust the Depth setting between negative and 
positive values. You'll soon appreciate how the Depth setting affects the shape of the 
filter ADSR enevelope generator.

Jon