Hi Andy, Thanks... am using Tunelab so I could easily enough calibrate my Pocket PC to 500 or 600 hz using the NIST tuning file to do so. Found telephone number this also at Tunelabs site after I wrote this querry. But thanks for the reply ! RicB The only telephone-based 440 reference I've found is to dial WWV, which is 303-499-7111 (happens to be a local call for me :-). But it isn't a very convenient source of a 440 pitch --it only plays it during the 1st minute of each hour, and not during the first hour of each UTC day. -andy On Fri, Jun 5, 2009 at 10:43 AM, Richard Brekne <ricb at pianostemmer.no> wrote: > > Anybody have the name/telephone number of the us based international pitch reference ? I need to double check the calibration on my Dell. > > Cheers > RicB
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