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17.2.1 oscillator 1 wave shape calibration
The Lifeforms SV-1 oscillator 1 ships fully calibrated. The following information is
included for reference only.
This procedure calibrates the oscillator 1 wave shapes. A few of the steps can
be done by ear but an oscilloscope is highly recommended.
Attach a oscilloscope to the [oscillator 1 triangle output jack].
Adjust the SAW1 trimmer until the hook is removed from the triangle wave. This
is best done by ear. Listen for the buzz to minimize.
Adjust the TRI1 trimmer until the triangle wave is centered around 0v.
Attach a oscilloscope to the [oscillator 1 blade output jack].
Adjust the BLADE1 trimmer until the blade wave looks like a clean saw wave.
The frequency of the blade wave should be twice the frequency of the triangle
wave.
17.2.2 oscillator 1 pitch tracking calibration
The Lifeforms SV-1 oscillator 1 ships fully calibrated. The following information is
included for reference only.
The [oscillator 1 v/o input jack] is calibrated to the eurorack 1 volt per octave
standard. Below is the calibration procedure.
The trimpots are located on the top of the Lifeforms SV-1 module. The trimpots
are labeled TEMP1 and V/O1. The V/O1 trimpot is a precision 25 turn trimmer.
For best results, adjust using small turns with adjusting each trimmer.
Attach a tuner to the [oscillator 1 triangle output jack].
Place the Lifeforms SV-1 midi module in mono mode.
Attach a midi keyboard and touch the C key then the C key 2 octaves above.
Adjust the V/O1 trimmer until the octaves output the same pitch..
Switch between several octaves of C notes to make sure the module is
outputting the correct pitch.
If oscillator 1 is far out of calibration, the TEMP1 trimmer can be adjusted.
Typically the TEMP1 trimmer should be set around 12 o’clock. Small
adjustments make a big di
ff
erence. After the TEMP1 trimmer is adjusted, repeat
the V/O1 trimmer adjustment. This may need to be repeated several times.
