Showing a 10 cents difference in tuning

[@davebellamy4867]

COOL! If a semitone (100 cents) is a difference of 2 to power 1/12 or 1.05946 (5.9%) then 10 cents would be 2 to power 1/120 or 1.00579 (0.579%).
If the D4 has frequency 293.66 Hz (A=440 Hz standard), then 10 cents would give a frequency difference of 1.701 Hz and that's about what we hear in the beats.

[@davebellamy4867]

Nice simple demonstration! That sounds like a beat frequency of 1-2 Hertz as well. I have an analogue synthesizer that has voltage controlled oscillators and they drift out of tune like strings!

[@lavachevolante]

What app did you use on the phone ? Thx

[@Bloodhound_Dogg]

What you mean 10 cents??

[@EricJohnsonA]

Hi Ryan. Piano technicians divide a 1/2 step into 100 equal parts, called cents. We use this because it is the same for every 1/2 step throughout the range of the piano, unlike using frequency (like hertz) which increase logarithmically and so is a different number for every 1/2 step. 10cents is 1/10 of a 1/2 step and, in the piano tuning world, quite a lot!.

[@Bloodhound_Dogg]

What you mean 10 cents??