Beats vs cycles vs cents

Conrad Hoffsommer hoffsoco@martin.luther.edu
Tue, 16 Mar 2004 14:04:40 -0600


At 14:19 3/16/2004 -0500, you wrote:
>Hi Don et al.,
>
>What you write is of course true.  A cent is a cent is a cent -- same 
>difference in pitch, no matter whether treble, tenor, or bass.  I wonder 
>if this isn't one point in favor of electronic tuning.  After all, aural 
>tuning relies on counting beats, and beat rate would vary with overall 
>pitch.  However, beats are irrelevant to electronic tuning.  I can't 
>really speak from experience, as I only tune electronically.  Any thoughts 
>from you aural tuners?
>
>Peace,
>Sarah
>



My 2¢...

Boiled down to about .02¢.

A cycle is the vibration of something physical. Frequency is the quantified 
number of cycles per unit of time. (Hz)
Pitch is the perception of frequency.

Beats are the cycles produced by two or more vibrating somethings which are 
not synchronous. For tuners it is the interference pattern of two different 
frequencies.

Cent is purely a mathematical representation. It is the 1200th root of 2 or 
~1.00057779.

You cannot hear a cent. You may hear the difference between two pitches 
which are one cent different, but that would be a beat.


Conrad Hoffsommer, RPT, MPT, CCT, PFP, ACS, CRS.
Decorah, IA

- Certified Calibration Technician for Bio-powered Digitally Activated 
Lever Action Tone Generation Systems.
- Pianotech Flamesuit Purveyor
- American Curmudgeon Society - Apprentice Member and Founder


This PTG archive page provided courtesy of Moy Piano Service, LLC