Dave Smith Instruments SYNTHESIZERS

Osc 3 and 4 levels to around 64, then a slow triangle LFO with mod 
destination Osc3-Level and amount 64. Via a modulation slot use the same LFO 
as mod source with Osc4-Level as destination and amount -64. It might be 
necessary to fiddle a little with the level offsets and mod amounts, because 
the level curve of an osv between 0 and 127 isn't quite linear, means one 
Osc at level 127 and the other at level 0 might result in a different 
loudness as the sum of 2 Oscs with level 64 each.

Hope this helps.

Stefan

----- Original Message ----- 
From: "wilsontherocker" <wilsontherocker@...>
To: <DSI_Evolver@yahoogroups.com>
Sent: Monday, March 05, 2007 4:33 PM
Subject: [Evolver] Crossfading Oscillators w/LFOs


Does anyone know if it is possible to crossfade between oscillators
(say, 3 & 4) using the LFOs? I've tried, but so far I've only gotten
what sounds like the rise and fall of one osc, followed by the rise
and fall of the other with no overlap whatsoever.

I have been able to get the sound I'm looking for by using Env3 to
raise the level of an osc while simutaneously using Env3 negatively
(via a mod bus) to bring down the level of another osc. But obviously,
this is not loopable. Is there a way to do this with LFOs?

My overall goal here is to get some Prophet VS-style morphing
textures, but I'm just not sure it is possible with the evolver.

Thanks to all who responded to my question! I actually figured this out 
after fiddling a little more on my own. Here's how I did it (which is 
very close to what Stephen said):

Set Osc 3 and 4 levels to 50. Send a triangle LFO to Osc 3 with an 
amount of 100. Use a mod slot to send the same LFO to Osc 4 with an 
amount of -100. The LFO amount has to be twice the level of Osc because 
the LFOs are bipolar, and thus in this case, the Oscs will rise 50 and 
fall 50.

Personally, I think this is something that should be added to 
the "Definitive Guide to the Evolver," since it is so useful and 
so "evolver-like," especially if one combines it with wave sequencing.

Thanks again for the help!



--- In DSI_Evolver@yahoogroups.com, "Stefan Trippler" <doct@...> wrote:
>
> Osc 3 and 4 levels to around 64, then a slow triangle LFO with mod 
> destination Osc3-Level and amount 64. Via a modulation slot use the 
same LFO 
> as mod source with Osc4-Level as destination and amount -64. It might 
be 
> necessary to fiddle a little with the level offsets and mod amounts, 
because 
> the level curve of an osv between 0 and 127 isn't quite linear, means 
one 

> Osc at level 127 and the other at level 0 might result in a different 
> loudness as the sum of 2 Oscs with level 64 each.
> 
> Hope this helps.
> 
> Stefan