Hat Pedal Type: Pedal - Alesis DM Pro Reference Manual

Triggers
At the moment the Switch is depressed (stepped on), Trigger 15 will sound a Drum
of its own. Trigger 15 is intended to have a "Foot Down" Hi-hat assigned to it. With
this Drum assigned, when the Open Hi-hat is ringing, stepping on the Switch will
both mute the Open Hi-hat Drum and sound the Foot Down Hi-hat Drum,
generating a convincing overall Hi-hat effect.
If you step on the Hat Pedal and then let it up again right away, Trigger 16 will also
trigger a Drum. It is intended to have a "Pedal Up" Hi-hat assigned to it for extra
realism. This simulates the sound made by a set of Hi-hat cymbals scraping together
when you release the Hi-hat pedal. To further aid the realism, the velocity of the
"Pedal Up" sound will diminish over time. So the longer you keep the Hat Pedal
down, the softer the "Pedal Up" sound will be. If you hold the Pedal down long
enough, the "Pedal Up" sound will not be triggered at all. The length of time it takes
for the "Pedal Up" sound Trigger to decay to nothing is determined by the Retrigger
Function on Page 5 of Trigger 16.
Triggers 15 and 16 derive their velocity from the last signal the DM Pro received
from either Trigger 13 or 14. This is important to know, because if the Hat Pedal Type
is set to when you first turn on the DM Pro, Triggers 15 and 16 will make no
Switch
sound until they have received a velocity value from one of those two Triggers. In
other words, you can stomp on the Hat Pedal all you want but it won't give you the
"Foot Pedal Down/Up" sounds unless you first strike the Hi-Hat pad to give
Triggers 15 and 16 a reference velocity value. If the Hat Pedal Type is set to ,
Pedal
Triggers 15 and 16 are assigned a velocity value based on the velocity of the CV
Pedal.
H P T : PEDAL
AT EDAL YPE
With the Hat Pedal Type set to , the DM Pro behaves the same as when the Hat
Pedal
Pedal Type is set to , but with some additional features. Triggers 15 and 16 still
Switch
sound their respective "Foot Down" and "Foot Up" Hi-hat sounds when the Pedal is
opened and closed. But to make the performance as dynamic and realistic as
possible, the DM Pro tracks the velocity of the Pedal when moving down or up and
then sends that velocity value along with the respective Trigger commands.
Remember also that the Hat Threshold Function (Page 4 on Triggers 15 and 16)
determines the point at which the Hat Pedal switches from the "Foot Down" to the
"Foot Up" Hi-hat sound. This will not only affect the response of these two sounds
but also the crossover point of the open and closed "Stick-hit" sounds.
The DM Pro tracks the position of the CV Pedal and can use the Pedal's position as
an input to the Modulation Matrix (discussed in "Chapter 6: Programming Drums").
The Sound Designers at Alesis have taken advantage of this to create Hi-hats which
open gradually from closed to full open, for even more realistic Hi-hat performance.
To find the Drums which support the CV Pedal, select from the Open Hats in the
Hat
category inside Drumkit Edit Mode (see "Chapter 4: Programming Drumkits" for
more information). Look for the word "Open" in the Hi-Hat name. Drumkits 00-51
all support this functionality on MIDI Note Numbers 46 and 95.
To assign the above recommended Drums to Triggers 13 - 16, use the Trigger Note
Assign Function which is described at the beginning of this chapter and in "Chapter
4: Programming Drumkits".
DM P R M 1 1 5
RO EFERENCE ANUAL