G-Lab GSC-4 - Expression Pedal Setup

24 user manual GSC_4
Expression pedal
TOE- UP VALUE, TOE-DOWN VALUE
Connect the exp. pedal to the EXP PEDAL input. Pedal’s value is send by the GSC-4 using
CTRL CHANGE number.
Exp. pedal settings are placed in the Menu: MENU -> EXPRESSION PEDAL:
- NAME – Function’s name maximal 20 characters.
- STATE (ON/OFF) – Activate and deactivate exp pedal function.
-MIDIDEVICE–Denedevicethatwillbecontrolledwithexp.Pedal.
- CTRL # - Control change number of controlled function (from 0 to 127).
- CHARACTERISTIC – Characteristic response of exp.pedal movement from upper to lower pedal position:
 •FAST/SLOW-Fastincreaseatthebeginning,slowattheend.
 •LINEAR-Proportionallywithintheentirerange.
 •SLOW/FAST-Slowincreaseatthebeginning,fastattheend.
-TOEUPVALUE-Valuefortheupposition(from0to127).
-TOEDOWNVALUE-valueforthelowposition(from0to127).
- PERIOD - minimum interval between sending commands 4ms, 8ms,16ms, 32ms 64ms.
-CURRENTVALUE-currentlysentvalue.
- CALIBRATION – pedal’s calibration.
CHARACTERISTIC of pedal’s response:
Typical expression pedals feature a linear characteristic (potentiometer taper response) and volume
pedalsfeaturealogarithmiccharacteristic.CURRENTVALfunctionenablestocheckcharacteristicofthe
pedal’sresponse.AfterpedalcalibrationsettheCHARACTERISTICasfollows:LINEAR,TOEUPVAL:0,TOE
DOWNVAL:127andthensetthepedalinitsmiddleposition.Ifthepedalfeatureslinearcharacteristics
theCURRENTVALwillbeabout63.Ifitisdifferentitispossibletoapplyothercharacteristicsfromthe
CHARACTERISTIC function to correct the linearity of the pedal. It is also possible to use CHARACTERISTIC
function to get the nonlinear characteristic of the pedal’s response.
Adjust the range of values which are send and change the direction of the given expression pedal function
bytheTOEUPVALUEandtheTOEDOWNVALUEsettings.TochangethedirectionsettheTOEUPVALUE
biggerthantheTOEDOWNVALUE.