Alesis Andromeda A6

On Apr 16, 2010, at 3:12 PM, davenoz16 wrote:

> Hi I have a problem with my sub oscillators volumes changing on different voices . If you are reading this post you could try and replicate this on your A6 by initialising a patch in the user bank ,setting the voice alocation to rotation (very important ) . bypassing the filters . setting a fast attack and highest sustain amp envelope with no release turn osc 2 volume off . have osc 1 volume at 50 %. turn off osc 1's wave and bring in the osc 1 sub oscillator untill just audible . Now press a key to cycle through the 16 voices you should notice the volume changing ? You can monitor which voice is doing what from the Global> voxmon page . Please if you have tried this procedure can you let me know if your A6 behaves the same as mine ? Thanks for your time 

Dave,

I haven't tried this, but I bet if you increase the sub volume a little above "just audible" the effect will be less noticeable. My guess is all A6's do this -- it's an analog machine and not all the parameters are 100% identical from voice to voice. Oscillator pitch and filter cutoff are calibrated during the tuning procedure, but not all of the other parameters are, from what I can tell. 

I have noticed this especially if you set up the same as you have (voice rotation) and use a pure sine combined with a triangle wave. The oscillator sounds a little brighter on some voices than others. 

Turn off voice rotation if it really bothers you. 

I won't have time this weekend to try the experiment you suggest, but might be able to get to it next week. I don't think your A6 is broken; I suspect it's a normal voice-to-voice variation. It's this same reason that doing polyphonic playing while using oscillator FM is really nasty -- the voices differ enough from one another that FM makes it very noticeable. 


Russ