[sdiy] Re: AVR question

[David Brown]

At 11:26 AM 5/28/2005, you wrote:
> > Can you explain a couple of the switches on the AVR synth?
>
> > On the filter, what is distortion (on/off)?
>
>It's a simple "ring modulator": outputs of both DCOs are XORed.
>If you want to know how it sounds you have to ask Laurie Biddulph.
>I don't know - I coded this feature but never had a switch in my
>model unit to activate it...

Neat!  I've added XOR to other analogs as a mod.  Great feature.

> > On the LFO, what is mode (looks like regular/random)?
>
>That's right.
>The "regular" mode needs no explanation.
>In the "random" mode:
>- if you select the square wave, you get a "sample&hold" LFO waveform;
>- if you select the triangle wave, you get a "random triangle" LFO
>   waveform (which is my own invention).
>
>
> > On the MIDI input, what is range (up/down)?
>
>A general transpose switch (one octave down) for both DCOs.
So this is normal and down?

> > On the DCO, what is range (up/down)?
>
>Individual transpose switches (one octave down) for each DCO.

So if I use this with the main up/down I can transpose down two octaves and 
up none?

I'm thinking of using this with my MIDI bass pedals so these are great 
features.  I've done three panel layouts trying to figure out what would be 
the best format.  These are at
http://modularsynthesis.com/avr/avr.htm

Dave