A-435

[Kent Swafford]

on 9/1/00 8:30 AM, Dick Powell at dbpowell1@juno.com wrote:

> Hey guys, please forgive my dumbness, but there is a lot that I still
> don't  about the Accu-Tuner. To tune a piano at A-435, what do I set the
> cents on the machine.  Minus what?
> Thanks, Dick Powell

Hi, Dick.

If you wish to be as exact as possible, -19.8 cents would yield A=435. Other
conversions are in the chart below.

Kent Swafford



                        CENTS/HZ  CONVERSION CHART

               Frequency(Hz) to Cents Deviation (Offset)
                          A4 = 415Hz =   -101.3 cents
                          A4 = 420Hz =    -80.5 cents
                          A4 = 425Hz =    -60.0 cents
                          A4 = 428Hz =    -47.9 cents
                          A4 = 430Hz =    -39.8 cents
                          A4 = 435Hz =    -19.8 cents
                          A4 = 440Hz =      0.0 cents
                          A4 = 441Hz =      3.9 cents
                          A4 = 442Hz =      7.9 cents
                          A4 = 443Hz =     11.8 cents
                          A4 = 444Hz =     15.7 cents

                    Cents Deviation to Frequency(Hz)
                         A4 =  -50.0 cents = 427.5Hz
                         A4 =  -25.0 cents = 433.7Hz
                         A4 =  -15.0 cents = 436.2Hz
                         A4 =  -10.0 cents = 437.5Hz
                         A4 =   -5.0 cents = 438.7Hz
                         A4 =    0.0 cents = 440.0Hz
                         A4 =    5.0 cents = 441.3Hz
                         A4 =   10.0 cents = 442.5Hz
                         A4 =   15.0 cents = 443.8Hz