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™
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