Dave Smith Instruments SYNTHESIZERS

DELAY:
With modulating delay times, you have 2 choices:  You can either  
interpolate or not.

If you interpolate, you get the pitch-shifting behavior you experience  
with the Evolver at present.  This is similar to what happens with an  
analog delay if you vary the delay time while signal is passing through.   
As others have noted, that's why we can do chorus and flanging with the  
delay line.

The alternative is NOT to interpolate, which would result in very nasty  
clicking noises whenever the delay time changed.

The details of why require some knowledge of DSP theory.

CONTROLS:
As for the knobs, if they didn't work the way they do, how could you  
possibly see what the value of the parameter you're adjusting is?  You'd  
have to have an additional way to "display knob" which would be too  
complicated for a device with the Evolver's UI.

The easiest workaround is to plug in a MIDI controller and map its knobs  
or controls to the Evolver's inputs for breath, mod, foot, etc.

Interesting. I just wasn't sure if it was normal behavior.



--- In DSI_Evolver@yahoogroups.com, "Anu Kirk" <anukirk@p...> 
wrote:
> DELAY:
> With modulating delay times, you have 2 choices:  You can 
either  
> interpolate or not.
> 
> If you interpolate, you get the pitch-shifting behavior you 
experience  
> with the Evolver at present.  This is similar to what happens 
with an  
> analog delay if you vary the delay time while signal is passing 
through.   
> As others have noted, that's why we can do chorus and 
flanging with the  
> delay line.
> 
> The alternative is NOT to interpolate, which would result in very 
nasty  
> clicking noises whenever the delay time changed.
> 
> The details of why require some knowledge of DSP theory.
> 
> CONTROLS:
> As for the knobs, if they didn't work the way they do, how could 
you  
> possibly see what the value of the parameter you're adjusting 
is?  You'd  
> have to have an additional way to "display knob" which would 
be too  
> complicated for a device with the Evolver's UI.
> 
> The easiest workaround is to plug in a MIDI controller and map 
its knobs  
> or controls to the Evolver's inputs for breath, mod, foot, etc.

so the evolver uses interpolation or not? i`m new to this synth and i 
can hear some nasty clicks when i change the delay time

--- In DSI_Evolver@yahoogroups.com, "dhamaryder" <dhamaryder@y...> 
wrote:

> Interesting. I just wasn't sure if it was normal behavior.
> 
> 
> 
> --- In DSI_Evolver@yahoogroups.com, "Anu Kirk" <anukirk@p...> 
> wrote:
> > DELAY:
> > With modulating delay times, you have 2 choices:  You can 
> either  
> > interpolate or not.
> > 
> > If you interpolate, you get the pitch-shifting behavior you 
> experience  
> > with the Evolver at present.  This is similar to what happens 
> with an  
> > analog delay if you vary the delay time while signal is passing 
> through.   
> > As others have noted, that's why we can do chorus and 
> flanging with the  
> > delay line.
> > 
> > The alternative is NOT to interpolate, which would result in very 
> nasty  
> > clicking noises whenever the delay time changed.
> > 
> > The details of why require some knowledge of DSP theory.
> > 
> > CONTROLS:
> > As for the knobs, if they didn't work the way they do, how could 
> you  
> > possibly see what the value of the parameter you're adjusting 
> is?  You'd  
> > have to have an additional way to "display knob" which would 
> be too  
> > complicated for a device with the Evolver's UI.
> > 
> > The easiest workaround is to plug in a MIDI controller and map 
> its knobs  
> > or controls to the Evolver's inputs for breath, mod, foot, etc.

On Tue, May 11, 2004 at 12:21:02AM -0000, Carlos (1b) wrote:
> so the evolver uses interpolation or not? i`m new to this synth and i 
> can hear some nasty clicks when i change the delay time

The filter-cutoff is smoothed, but other controls are not.

-Miles
-- 
The secret to creativity is knowing how to hide your sources.
  --Albert Einstein

so the resonance, delay time, distorsion, lfo frequency, amount, etc 
are NOT right???

--- In DSI_Evolver@yahoogroups.com, Miles Bader <miles@g...> wrote:
> On Tue, May 11, 2004 at 12:21:02AM -0000, Carlos (1b) wrote:
> > so the evolver uses interpolation or not? i`m new to this synth 
and i 

> > can hear some nasty clicks when i change the delay time
> 
> The filter-cutoff is smoothed, but other controls are not.
> 
> -Miles
> -- 
> The secret to creativity is knowing how to hide your sources.
>   --Albert Einstein

No, they are not smoothed.  You can get very smooth delay time, distortion,
etc, buy using the many LFO's available as modulation sources.

-----Original Message-----
From: Carlos (1b) [mailto:carloslamerma@...] 
Sent: Monday, May 10, 2004 8:42 PM
To: DSI_Evolver@yahoogroups.com
Subject: [Evolver] Re: Delays and controllers

so the resonance, delay time, distorsion, lfo frequency, amount, etc 
are NOT right???

--- In DSI_Evolver@yahoogroups.com, Miles Bader <miles@g...> wrote:
> On Tue, May 11, 2004 at 12:21:02AM -0000, Carlos (1b) wrote:
> > so the evolver uses interpolation or not? i`m new to this synth 
and i 
> > can hear some nasty clicks when i change the delay time
> 
> The filter-cutoff is smoothed, but other controls are not.
> 
> -Miles
> -- 
> The secret to creativity is knowing how to hide your sources.
>   --Albert Einstein




 
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ok, cool then, thanks again


--- In DSI_Evolver@yahoogroups.com, "Robert Krueger" <rkr1@t...> 
wrote:
> No, they are not smoothed.  You can get very smooth delay time, 
distortion,
> etc, buy using the many LFO's available as modulation sources.
> 
> 
> -----Original Message-----
> From: Carlos (1b) [mailto:carloslamerma@y...] 
> Sent: Monday, May 10, 2004 8:42 PM
> To: DSI_Evolver@yahoogroups.com
> Subject: [Evolver] Re: Delays and controllers
> 
> so the resonance, delay time, distorsion, lfo frequency, amount, 
etc 

> are NOT right???
> 
> --- In DSI_Evolver@yahoogroups.com, Miles Bader <miles@g...> wrote:
> > On Tue, May 11, 2004 at 12:21:02AM -0000, Carlos (1b) wrote:
> > > so the evolver uses interpolation or not? i`m new to this synth 
> and i 
> > > can hear some nasty clicks when i change the delay time
> > 
> > The filter-cutoff is smoothed, but other controls are not.
> > 
> > -Miles
> > -- 
> > The secret to creativity is knowing how to hide your sources.
> >   --Albert Einstein
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> ---
> Incoming mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.677 / Virus Database: 439 - Release Date: 5/4/2004
>  
> 
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
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> so the evolver uses interpolation or not? i`m new to
> this synth and i can hear some nasty clicks when i 
> change the delay time

I think it's interpolated for the modulation busses
but no smoothing on the actual controllers, as
mentioned in other folks' replies already. hence why
you would get the pitch-changing when using LFOs etc,
but get clicking when controlling it from the knobs...



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