Details: NOISE GATE/HUM CANCELLER
6•1
DETAILS
Alright, so now that we’ve got the basic idea of how the knobs and buttons all work,
what the Amp Models are supposed to sound like, and how to send in that registration
card that we all now know is so important, let’s dive into the nitty gritty of the AX2
details. As usual, we’re going to be making our way from the top to the bottom of the
AX2 Edit Rows - input effects, then amp model and cabinets, then ‘rack’ effects.
NOISE GATE/HUM CANCELLER
The AX2 includes a noise gate and hum canceller. The first is designed to reduce noise
and hum from noisy guitar pickups, and the second can help filter out AC power line
noise that is picked up by your guitar’s pickups. The controls for the noise gate and
hum canceller are found in the NOISE GATE Edit Row (second from the top).
NOISE GATE
The Noise Gate is intended to reduce the hiss and noise that guitar amplifiers tend to
put out when you’re not playing, especially at high gain settings (since high gain
means that the noise from pickups and other sources is turned up along with your
guitar sound).
The basic idea of a noise gate is that it provides a “gate” (which you can think of like a
garden gate that swings closed or open) which controls whether a signal passes
through or not. The gate “listens” to hear when you are playing and when you are not
playing. When you are not playing, the gate is closed, and no noise is heard. When
you play, the gate opens to let your signal through.
The noise gate is set with three settings: On/Off, Threshold (0-99), and Decay (0-99).
On/Off - lets you simply choose whether the gate is active or not.
Threshold - We mentioned earlier that the noise gate “listens” to hear when you are
playing and when you are not playing. In fact, it’s even simpler than this. Imagine that
there is a gate keeper who just keeps on ear open to see how loud the sound is that’s
being fed into the gate. With the sound at a relatively low level (in other words, when
To Next Page
Loading...
Need help?
General
