Alesis DM5Pro Kit Spécifications télécharger pdf (Page 109)

Triggers

DM PRO REFERENCE MANUAL 1 0 9

The concept of the Crosstalk Matrix is simple: the crosstalk prevention needed for a

Snare Rim when the Snare Center is hit is high (good chance for a false trigger),

however the same Snare Rim only requires a small amount of crosstalk prevention

when the Floor tom is hit (on the opposite side of the kit).

When you are at the Crosstalk page, after a couple of seconds you will see the letters

RDY appear in the display. This means the DM Pro is in a “Listen” mode. When you

hit the pad hard (step 2 above), the DM Pro listens to the remaining 13 triggers for a

crosstalk level and generates a Crosstalk Matrix of these values. This Matrix, in

conjunction with the Crosstalk value you set, will be used to suppress false triggers

during normal play.

When you are playing normally, an incoming Trigger will alert all other triggers and

supply each with a unique value, which basically tells them “If you just received a

signal of this strength, do not sound off!” The Crosstalk Matrix method is a much

more complex and reliable way to prevent interactive false triggering per pad while

maintaining maximum individual pad sensitivity.

Remember that none of this applies to Triggers 15 and 16 since those are for a Pedal

or Footswitch input and are not subject to crosstalk problems.

Important note: The Crosstalk Function is active only if the Noise Suppression

Function is set to OFF (see below). If Noise Suppression is set to something between -

59 and 0, then the Crosstalk Function is replaced by the Noise Suppression Function.

P7 THE NOISE SUPPRESSION FUNCTION

This Function allows you define the noise floor of your environment for each of the

four Trigger Setups by plugging an external trigger or dynamic microphone into the

Noise Suppression jack on the rear panel. This Function will dramatically reduce

instances of false triggering.

One way the Noise Suppression Function works is by using signals from a Trigger

sensor placed directly on the drum rack stand to pick up conducted noise between

the drums, and also conducted noise that arrives to the stand from the floor.

By setting the Value of the Noise Suppression Function, you can determine what is

an acceptable trigger input level and what is extraneous noise. The closer to 0 the

Value gets, the more noise will be suppressed (i.e., a Value of -20 suppresses more

noise than a Value of -50). Be aware, though, that too high of a Value will affect the

Trigger sensitivity and you will have to hit your pads or external triggers very hard

in order to generate a trigger above the defined noise floor.

Here’s how to set the Noise Suppression level for the Trigger Setup:

1. Move the cursor beneath the Value:

NoiseSup:-5 0

Trigger Set

Watch for the letters RDY (which mean “Ready”) to appear in the

display. Once you see them, that’s your cue to proceed to step 2.

2. Hit the frame of the drum rack hard several times. Strike only the

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Alesis DM5Pro Kit Spécifications Page 109

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