User manual

AmpliTube

™

Live

4 - Controlling AmpliTube™ Live

Controlling AmpliTube™ Live

Input Level

The input signal level (fig. 4.1) is very important in AmpliTube™ Live

because the preamplifier stages are physically modeled after real circuits,

where the signal level affects the timbre that’s being produced.

Always check the three LEDS labeled “ Input Level” on the left top corner

of the interface.

yellow shows that a too little signal is present

green indicates that the signal is OK

red which should light only occasionally, showing that the input is

close to overload.

AmpliTube™ Live does not have an “input level” knob, because it’s very

important that the level is actually good at the audio input of your computer.

If the level is too low, the input the A/D converters of your system will work

with a lower resolution and the sound will not be as good as it could be, if

it is too high there will be clipping even with AmpliTube™ Live clean set-

tings.

During normal playing the green LED should be the one that lights most

often. If the yellow one lights most often then increase the gain of your

preamplifier or audio card break-out box; if the red one is blinking reduce

it slightly.

Gate

The very first stage of AmpliTube™ Live is the noise gate (fig. 4.2).

It is an ultra-fast noise gate that is able to cut the input of AmpliTube™

Live when the signal is lower than a certain threshold. This eliminates the

noise background typical of guitar pickups / preamps when an instrument

is not playing.

It is very useful at high gain settings because, being placed before the

amplifier, it can effectively clean up the signal during the silent parts of the

performance.

Begin by setting the Gate knob fully counterclockwise. This completely

bypasses the Gate, because the threshold is set at the minimum, which is a

very low signal level.

You can check the Gate action by watching the red LED positioned near the

Gate knob. When the Gate closes the LED lights. During normal play the

LED should always be off, and should light only when the strings are not

Chapter 4

4.1

4.2

fig. 4.2

fig. 4.1