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Re: [AN1x] Two number twos???

2003-01-27 by Bruce Wahler

Hi Timo,

>What's the difference between:
>Saw1 and Saw2
>Chorus1 and Chorus2

I'm not sure about the sawtooth waves, but the one of the choruses is "wide," while the other is "deep."  I don't remember which one is which.  A wide chorus sweeps between a very short delay and a longer one; you could also think of it as being a medium delay with a nearly equal amount of oscillation.  A deep chorus has a relatively long delay, with a somewhat short range of oscillation.  To put some numbers to this rather cumbersome explanation, here is an example of the two types of choruses:

Wide Chorus:   10mSec. delay <--> 40mSec. delay
Deep Chorus:   35mSec. delay <--> 45mSec. delay

I don't know if the AN1x uses exactly these values, but they are probably similar.

>And what does the AM parameter in Chorus do?

Chorus is mostly a frequency modulation (FM) effect.  However, many real-word chorusing devices, like the Leslie Speaker, create the effect by rotating a speaker at a slow speed.  This provides a "pulse" that comes from the speaker being rotated toward and away from the listener; the pulse is pure AM.  For certain effects, adding AM increases the realism.

Regards,

-BW

--
Bruce Wahler
Design Consultant
Ashby Solutions\ufffd   http://consult.ashbysolutions.com
978.386.7389  voice/fax
bruce@...

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