If it's greater than 100Hz (ie double the C4 note), you'll need to turn the (Scale 1) trimmer clockwise (looking from the component side of the board - ie with the front panel removed).
#Lil erebus full#
Set this to loop continuously.Ģ) Turn VCO1 level full up, and VCO2 full downģ) Use a frequency meter - I used Pitch lap Pro (free) on my phoneĤ) Turn the main Tune knob (big one on the front) until the frequency of the lower C4 note is a nice round number (I used 50Hz)ĥ) Note the Frequency of the C5 note. I have just tuned mine, and I did the following.ġ) On a DAW, set up a MIDI Loop putting out about 2 seconds of C4 and 2 Seconds of C5 - ie an octave apart. Vertflyer wrote:Could someone post up some details or hints on proper calibration? I spent a long time last night trying to get this right and it still seems like an inexact science of a procedure.
Help! Someone please say there is a foolproof procecedure I’m missing that makes this process easy. I would like there to be a way to calibrate this synth using nothing but a meter or tuner but it seems I can’t get around using my own ears to at least get the trims in the right ballpark, and then I still can’t find tune anything. Help!ĥ) if I can’t use a meter, using my ears to get the scale 1 in the approximate right place is a trip because the starting and ending note keeps changing and it’s hard to just ballpark an octave when the base frequency keeps changing so then I move the big pot tune knob. Which leads to the next question.ģ) should I use a tuner to set scale 1, or can I use a meter? If I use a meter, where should I measure the voltage? And how many octaves should I use? Why does it seem like the scale 1 trim knob is so course that I can’t finely turn it enough to get scale 1 set right?Ĥ) It’s all circular, when I can't set scale 1 right, I then wonder if my default starting trim settings on the other trims are wrong, and then wonder if the main pot tune should not be moved, then wonder if I should be using a meter, and I go in circles never getting scale 1 to be right. Are you using one octave or two to set this? It seems like no matter where I set scale 1, it’s not exactly right. Is it ok to move the main tune pot on the front to help with setting scale 1? Or does that just keep making my scale 1 setting change? The reason I ask is cause I’m trying to use a chromatic tuner to help with scale 1 and it helps to start at a correct note. I can’t figure out if it helps to have all the trims starting at fully counter clockwise or fully clockwise or all approximately in the middle? It seems some of these options lead me to run out of trim in one direction if that makes any sense.Ģ) So there is a master tune trim and then the big tune pot on the front side. But it seems to me that default settings per trim makes a difference.
A couple questions.ġ) The instructions say that order matters and that seems to be the case, scale 1, scale 2, tune 2, master. Could someone post up some details or hints on proper calibration? I spent a long time last night trying to get this right and it still seems like an inexact science of a procedure.
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