Definitions for "Equal Temperament"
A Scaling system where the octave is divided into 12 equal parts. The ratio of the frequencies between any two adjacent notes is exactly the same. Most keyboard instruments are scaled in this manner. Some keyboards can be tuned to other relationships by the use of the tuning function built into them by the manufacturer.
There are many different scaling or tuning systems that define how individual notes are tuned in relation to each other. Equal Temperament is a Scaling system where the octave (see DJzone archive octave) is divided into 12 equal parts. The ratio of the frequencies between any two adjacent notes is exactly the same. Most keyboard instruments are scaled in this manner.
The present system of tuning bells (and other instruments), whereby all half-tones are identical; the octave is divided into 12 divisions of 100 "cents" each.
Keywords:  ein, rider, noise, equivalent, input
Equipment Rider Equivalent Input Noise (EIN)