TC Electronic TC 2290 User Manual

12.0 Glossary
ADT. Automatic Double Track. Effect making a ’live’ simulation of the typical dubbing process
in the recording studio. Dubbing is sound-on-sound recording twice or more the ‘same’
playing or singing.
Assign. On the TC 2290 you can assign functions to a number of ‘assign keys’ i.e ‘program’
assignable keys to do a number of keypressings for you.
Attack, (see also envelope). On the TC 2290 attack expresses the fade-in time that elapses
between ‘threshold has been exceeded’ to the time of maximum effect. Using SPEED,
10Hz expresses a time of 1/10 second, 1 Hz equals 1 second and 0.10 Hz expresses 10
seconds.
Auto-Panner. An electronic device capable of panning a signal automatically in a number of
ways. The TC 2290 is able to function as an auto-panner.
Balanced. Apart from tonal and stereo position balance the term refers to an interconnection
method. The advantages of using balanced connections are to minimize cable hum and
noise pickup as well as to prevent differencies in signal ground levels from being added
to the audio-signal. A balanced input actually has two inputs (+ and —), the purpose of
which is to be able to pick up the signal at the source, ignoring the ‘surroundings’, somet-
hing similar to close miking compared to a more distant miking.
Technically this is done by the letting the input(s) sense only differencies between the two
inputs, meaning that ’common’ (hum etc.) signals present at both inputs are ignored or
‘balanced’ out. The audio signal, which is present as a difference between the two inputs,
is passed. See also XLR.
Bypass. If an effects unit is in Bypass Mode it leads (’bypasses’) the input signal unprocessed
to the output(s).
Chorus. When a delayed and slightly modulated version of a signal is mixed with the original
signal, then the sounds will seem ‘larger’, as if there were more (a chorus) from the same
sound source. The effect can be enhanced with the original and the delayed signals pan-
ned in a composite way.
Compressing. To compress a signal means to change the dynamics so that the level is of a
more ’constant’ volume, than it is without the compressing, — low levels are raised in volu-
me, higher levels are compressed’. It occurs when the DYN ENV modulation is selected.
dB. What is a dB?
dB is short for deci Bell, deci means 1/10 and Bell is the (now famous) guy, who suggested
this logarithmic way of expressing a ratio.
When dBs are applied to our experience of levels of audiosignals equal dB changes e.g.
+6dB and —6dB give equal experience of difference. Which is very practical.
This is opposed to expressing change in volts-change, adding 1V to level makes quite a
difference being it from 04V to 11 V(=+21dB) or from 1V to 2V (=+6dB)
Ratio Ratio
1 = OdB 1.12 = 1 dB barely noticeable
10 = 20dB 1.26= 2dB
100 = 40dB 1.41 = 3 dB clearly noticeable
1000 = 60dB 2 = 6dB
10000 = 80dB 3.16 = 10 dB double volume
100000 = 100 dB 5 =14dB
each +/—10dB doubles/halves experienced volume

TC Electronic TC 2290 Specifications

General

Brand	TC Electronic
Model	TC 2290
Category	Computer Hardware
Language	English