Calibrate Harmonizer Microphone

You will need to do this just once to calibrate Harmonizer to work with the microphone on your iPhone.

1. Open Harmonizer App.
2. Touch Enter.
3. Touch Shift.
4. Touch Pref.
5. Uncheck Metric Units.
6. Touch Back.
7. Change Max. Spindle Speed (rpm) to 6000 and touch Enter.
8. Change Current Spindle Speed (rpm) to 1656 and touch Enter.
9. Change Effective Cutting Edges to 6 and touch Enter.
10. Change Chipload (in) to 0.004 and touch Enter.
11. Change Tool Diameter (in) to 2.5 and touch Enter.
12. Change Pick Closest Material Type to 1 and touch Enter.
13. Change Recording Length (s) to 5 and touch Enter.
14. Change Threshold Setting Method to 3=Background and touch Enter.

Turn up audio. Keep phone two feet from speakers

16.  Start above video and touch Enter when instructed.
17.  After Threshold is calculated, touch Enter.

18.  Start above video and touch Enter when instructed.
​19.  Should say 1656RPM CHATTERED AT 899 Hz (+/- 1 Hz)
20. If it does, press Shift and then Save Def.

If you have issues with the audio coming from the videos, you can use the audio file below:

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If it says NO CHATTER FOUND, proceed to the following:

1. Press Shift.​
2. Press Thresh- button to reduce factor by 10%
3. Press Threshold
4. Repeat Steps 15-19 from prior section.
5. If says NO CHATTER FOUND again, repeat steps 1-5 above.

When it detects chatter at 899 Hz (+/- 1 Hz), press Shift and then Save Def.

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