Hi
> Set the feedback to 30 sounds good.
Yes, thats an good neutral choice and will produce the straight mathematical functions. Its interesting, that you prefer this natural setting. To get a little bit more vintage waves you can increase the value up to 50. But this will cut a little bit the higher frequencies. Its like boosting the lowest sine wave. Picture of Minimoog Wave (Thats Feedback around 45):
http://home.arcor.de/richardon/2010/minimoog.gifFeedback will also change all functions of the filter. You can study this using the tuned self Oscillating program Nr 71 LP HP sine. It took me hours to tune the filter like this, because filter key follow changes with feedback.
> How does one avoid the out of phase effect,
There is no possibility to do this, but it dont matter, because you dont hear this phase "errors". Its only important to know, because you will see them on the oscilloscope. What ist this "phase error" ?
A wave function can be build up as a sum of sine Waves f(t)=Sum(k, ai∗sin(k∗w∗t+Phase) ) To get a square or saw wave picture you will set Phase=0. If you change Phase for every sine wave you will get totally different pictures, but they are all sounding like a square wave. Pictures of An1X Waves :
http://home.arcor.de/richardon/2010/signale.gifIt would be wrong to eleminate this Peaks e.g. with Feedback, because they are needed for the high overtones.
This picture and mp3 will show that :
http://home.arcor.de/richardon/2010/anro.gifThe edge ist too round but the peak will compensate this. The peak is at the wrong place (phase)
In spite of that both sawtooth sound nearly identical. You cant herar phase :
http://home.arcor.de/richardon/2010/anro.mp3 > and what is a good setting for edge to get a nice square wave and saw wave?
Sorry i made an error in my description. Rec = "Rechteck", Square. I corrected this.
For Saw Edge=112-115 is a good Value. If you decrease ist, its like filtering. But if you increse ist up to 127 the
Peak will be to big. The wave "breaks down"
For swqure its different. You can chose up to 127
I know its only theory, but sometimes its better to measure, to be sure of what doing.
Greatings
richy
----- Original Message -----
From: spaceanimals
To: AN1x-list@yahoogroups.com
Sent: Thursday, May 05, 2011 2:37 PM
Subject: [AN1x] richy
So, I don't have an oscillator or an Internet connection (way out in the middle of nowhere in Maine). Set the feedback to 30 sounds good. How does one avoid the out of phase effect, and what is a good setting for edge to get a nice square wave and saw wave?
Has anyone figured out how to get the slight out of tune effect the old analog synths had? I've used free EG but I'm not sure how to set things so every time you play a note you get that nice beating sound.
I have figured that you can set the pitch bend wheel to make a chord.
Much thanks
Jimmy
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