OpenWareLaboratory

Note: this calibration procedure is not for the Witch. The Witch has AC coupled audio inputs and outputs, and does not require calibration.

Status

Not Connected

Patch loaded:  

Module reading:  

Calibrate

  1. Connect an OWL device (reload page if necessary)
  2. Click
  3. Connect the Left output to the Left input, and simultaneously to a voltmeter. We recommend a three digit voltimeter
  4. Press and hold and copy the value from the multimeter to the High Voltage box
  5. High Voltage Volt

  6. Press and hold and copy the value from the multimeter to the Low Voltage box
  7. Low Voltage Volt

  8. Click
  9. Output Offset Output Scalar

    Input Offset Input Scalar

  10. Click

The module is now calibrated and the settings are stored in memory. You can test the calibration with a V/oct voltage source and Harmonic Oscillator patch or another patch with a V/Oct input and output such as MIDI Modular

Test Calibration

  1. Connect an OWL device (reload page if necessary)
  2. Click
  3. Connect the Left output to the Left input, and simultaneously to a voltmeter. We recommend a three digit voltimeter
  4. Press and hold and verify that both Module and voltmeter readings are near +5 Volt
  5. Module High reading:   Volt

  6. Press and hold and verify that both Module and voltmeter readings are near -5 Volt
  7. Module Low reading:   Volt

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