I like this idea- I imagine it is very hard to get the fork the same temp every time Zoe -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Porritt, David Sent: December 28, 2009 2:14 PM To: pianotech at ptg.org Subject: Re: [pianotech] beginner's calibration question Use the tone from TuneLab rather than the fork. Forks vary with temperature, TuneLab will be more consistent. You can "tune" your fork and I'm sure someone will give you instructions on how to do that but it will always have to be at the temperature at which it was calibrated. dp David M. Porritt, RPT dporritt at smu.edu -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Zoe Sandell Sent: Monday, December 28, 2009 2:02 PM To: pianotech at ptg.org Subject: [pianotech] beginner's calibration question Hello, I have just completed calibrating my tuning device with NIST and the Tunelab demo-. When I call back the C5 500Hz marks as in tune- ie squares stay still- but my tuning fork reads flat at A440 How then do I accurately tune the temperament octave to the tuning fork- knowing this discrepancy? Get a new/better tuning fork? Thanks Zoe
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