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m
1) This is the Greek letter "mu", which is actually a forerunner of the
English "M", however, the lower-case "u" is often used in place of it
because of it's similar appearance.
2) This symbol is used for micro- (one millionth).
3) m s means two microseconds which is 2/1,000,000 of a second.
Unbalanced
A method of interconnecting recorders, amplifiers and other electronic
gear using two-conductor cable.
Undo
A command in some computer software that reverses the last command
entered.
Uni
A prefix meaning One.
Unidirectional
A pick-up pattern which is more sensitive to sound arriving from one
direction than from any other.
Unison
Several performers, instruments or sound sources that are sounding at
the same time and with the same pitch.
Unity Gain
No increase or decrease in signal strength at the output of an amplifier
or device compared to the signal strength at the input.
Update
By Absolute Solid State Logic name for re-writing the settings for an
automated console control.
Update Mode
A mode of operation of console automation allowing modification of the
programming of a channel of a console so that when the slide of the fader is
at a predetermined point (usually the point marked "0") the gain variations
(fader movements) last programmed in the computer will be in effect, but
when the engineer moves the slide up or down from this point gain or loss is
added to or subtracted from the programmed level.
Upper Midrange
The frequencies between 2 kHz and 6 kHz.
Upper Toms
Another name for rack toms (small to medium-size drums usually 10 - 14
inch diameter, that are mounted to a rack over the foot drum in a drum kit).
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