Alesis D4 manual Trigger Selection, TRIG01 VCURVE4

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NOISE. The noise floor is is the signal level threshold a vibration or sound must exceed before it can trigger a drum sound. When selecting lower values, very soft signals (hits) will trigger the D4. While this allows for the greatest sensitivity, there’s a chance that unwanted, exterior signals such as vibrations from drum risers, bass cabinets, or even people jumping up and down on the dance floor may trigger a sound.

Higher settings are useful when trying to extract drum sounds from tape where other sounds are present; often the snare or kick drum will be louder than other sounds, so setting the threshold above the other sounds will allow the snare or kick to trigger the D4. However, the higher the threshold, the more likely that the instrument’s full dynamic range won’t be captured and some soft hits to the pad may not be recognized.

Note: The NOISE parameter in the D4 is similar to XTALK in that the level you set determines whether the trigger will fire on "softer" signals. But there is a difference. The NOISE parameter "looks" only at exterior causes of the signal, whereas the XTALK parameter "looks" at all of the other triggers in the D4 to determine whether the "soft" signal it is receiving is actually a "real hit".

GAIN. This is the signal strength that the transducer is sending to the triggers in the D4. It's adjustment is very similar to that of a tape recorder's VU meter. With the gain set too low, soft hits may never be recognized. With the gain set too high, you may experience false, or double triggering. A properly adjusted gain setting will allow the highest dynamic range for the pad being used. The gain is the most important parameter in the D4. It must be correctly set for the remaining parameters to work properly, and to assure reliable triggering with the D4.

5.0TRIGGER SELECTION

There are 12 input triggers with corresponding rear panel jacks. Each is edited independently, so it is first necessary to select a trigger input for editing.

Note: The MIDI note number default settings for the D4 triggers can be found in the D4 Factory Drumset Reference Chart.

Editable parameters are identical for all 12 triggers, and the trigger set up is global for all drum sets.

1.The first Ext Trig page shows three parameters, such as:

TRIG:01 VCURVE:4

NOTE: 046 A#1

As with the other screens, the cursor buttons move between the three parameters.

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Contents Alesis Drum SET Management Midi Functions Introduction Principal FeaturesHOOKUP/INSTANT Gratification Return Your Warranty Card NOW2D Hook Up External Triggers rear panel 2A Installation2B Hook Up Audio rear panel 2C Hook Up Midi rear panel2G Select Drum Sets 2E Hook Up Power rear panel2F Turn On Power 2H Audition Different Drum Sounds Page 3A The Voice 2I Assign Drum Sounds to Particular Midi Notes3D Midi Note Range 3C About Defaults3B About the Edit Buffer About the User Interface 4D Editing Parameter Values 4A Function Buttons4B Cursor Buttons 4C Multi-Page Functions4F The Preview Button 4E The Store and Note Chase buttonsSTORING/NAMING AN Edited Drum SET Selecting Drum SetsRecall Alesis Recalling Factory Drum SetsPage Voice Function ButtonsOutput TuneOutput Main Drum SETGroup Button Mode MultiEXT Trig Drumset Root Midi ButtonCopying a Notes Parameters to Another Note Drum SET Root Note Midi FunctionsTurn the Data wheel to select the desired Drum Set root note Channel Omni Thru OFF Program Change EnableMidi Channel Selection Midi THRU/OUT SelectionProg Change on Controllers on Controller EnableMake sure the cursor is under the Controllers status Program Table Program Change TableSave Data VIA Midi 6A Save to DataDisk 7A Load from DataDisk Receive Data from Another Midi DeviceExternal Triggering This is how it works About Trigger ParametersPage Example TRIG01 VCURVE4 Trigger SelectionTRIG02 VCURVE4 Trigger Note SelectionTrigger Velocity Selection Method One Page TRIG03 XTALK30 DCAY10 NOISE00 Trigger Parameter SelectionTrigger Crosstalk Selection TRIG02 XTALK30 DCAY10 NOISE00Page Trigger Noise Level Selection Trigger Dcay Control SelectionTRIG01 GAIN50 Trigger Gain SelectionFootswitch Mode HI HAT Pedal Footswitch Mode8A Understanding Hi Hat Pedal Mode Page Midi Hardware Midi Basics3A Voice Messages Midi Message BasicsChannel Messages Page System Common Messages 3B Mode MessagesVideos on Midi Books on Midi
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