I need to calibrate the tuner from 440 to below 424. is there an upgrade that would allow me to do this ? Do I have to purchase a separate tuner that can?
Calibration of the tuner
- Zipp Wiggins
- Thread is marked as Resolved.
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From the OS7 manual:
Use “Reference Pitch” to adjust the base pitch of the tuner between 424 Hz and 456 Hz, in case you need to tune your guitar to something other than 440 Hz.
You said "from below 424", but hopefully 424Hz is close-enough for you.
Welcome, Zipp.
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I think the reason that the lower limit is 424 is because this is effectively half way between A and Ab.
A = 440hz
Ab = 415.3hz
Difference = 24.7hz
Half of difference = 12.35hz
A (440) - 12.35hz = 427.65
I know the distance between semitones isn’t a simple dived by 2 relationship but I can’t remember the maths. My guess is that either 424hz is exactly half way between A and Ab or they have given a little extra leeway for fine tuning.
Therefore, if you want to tune below 424hz but not as low as Ab set the reference slightly sharp and tune to Ab.
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Therefore, if you want to tune below 424hz but not as low as Ab set the reference slightly sharp and tune to Ab.
fixed a typo, hope you don't mind