Sources
XfdRnd -Crossfade Random- Function generates the same random value for all layers in a preset. This source is designed to be used for cross-fading layers, although you may find other uses.
EX. ??
Key (+,~) -Key Follow- Destination will change with what key is played, highest to lowest note or vice versa.
EX. Use on cutoff to open/close a filter as you play up and down the keys.
Vel (+,~,<) -Velocity- "Speed" of the sound, how hard the key/note gets played.
EX. Generally used to control AmpVol and FilFreq to brighten the sound as a key is played harder.
RlsVel -Release Velocity- "Speed" of the release, how fast it is released.
EX. ??
Gate - A gate is a switch that turns off the audio when it goes below a defined threshold.
EX. Set Gate to Pitch 50%. Now set RLS1 release time to 90 or something high. When you press the key it plays the sample at an offset pitch of 50% however returns to the normal pitch when you release. Try with filter frequency etc.
PitWl -Pitch Wheel- Wheel normally found on the right hand side of keyboards for controlling pitch.
ModWl -Modulation Wheel- Wheel normally found on the right hand side of keyboards for controlling modulation.
EX. Use to modulate LFO rate.
Press - Pressure - The Channel Pressure message conveys the amount of overall (average) pressure on the keys at a given point, somewhat like aftertouch. Depends on the keyboard / controller used.
EX. Use pressure to control the FilFreq.
Pedal - Midi controller like the hihat pedal on an electronic drum kit - standard midi cc number 4.
EX. Use to open and close a filter like a square wave.
Midi(A-L) - freely assignable MIDI controllers, assigned in Master->MIDI->Cntrls2.
EX. Use with an external controller, allows you to use knobs to control your Emu.
FtSw(1-2) -Foot Switch- Changes a parameter when the switch is pressed like a pulse wave.
EX. ??
Ft(1-2)FF -Foot Switch Flip-Flop-
MidVI -Midi Volume (Contr. 7)-
MidPn -Midi Pan (Contr. 10)-
Thumb - Only for use with the thumb controller on the E4K.
EX. ??
ThmFF - Flip flop version of thumb.
EX. ??
KeyGld -Key Glide- A smoothly changing control source based on the glide rate and the interval between the last two notes played.
EX. ??
VEnv (+,<) -Volume Envelope- A shape that changes volume frequencies as a function of time.
FEnv (+,~,<) -Filter Envelope- A shape that changes filter frequencies as a function of time.
AEnv (+,~,<) -Aux Envelope- 2 per voice, auxilary envelopes change destinations as a function of time. Found in Voice Edit->LFO/AUX->Next->Next.
Lfo(1-2) (+,~) -Low Frequency Occilation- An oscillator especially devoted to applications below the audible frequency range, and typically used as a control source for modulating a sound to create vibrato, tremolo, trills, and so on.
EX. Use to modulate FilFreq.
White -White Noise- Contains equal energy at all frequencies.
Ex. Use to control lfo rate for a random effect.
Pink -Pink Noise- Pink noise contains less energy in the higher audio frequencies than in the lower ones.
EX. ??
KRand(1-2) -kRandom- Generates different random values for each layer which do not change during the note (S&H).
EX. Set krand1>filterfreq>+100. Then, very time you hit the key you will actually hear a different degree of filtering. sometimes the filter will be completely open, sometimes completely closed, sometimes in the middle.
Lag(0-1)in -Lag in (summing amp out)- The Lag processors can be used as 2 additional summing amps. Lag0sum and Lag1sum are modulation sources which equal the sum of PatchCords connected to the Lag in destination.
EX. ??
Lag(0-1) -Lag processor- Slows down rapid changes in the input signal. The output ?lags? behind the input at a pre-programmed rate. There are two lag processors, Lag 0 and Lag 1. Lag 1 has a longer lag time than Lag 0.
EX. ??
Ck(Dwhl,Whle,Half,Qtr,8th,16th) -Clock Divisors- Outputs a division of the incoming MIDI clock (looks like a square wave), from double whole note to 16th note.
EX. Use as a primitive LFO, or to modulate sound perfectly in time with the tempo.
DC -Direct Current Offset- Offsets the destination by the parameter in the cord.
EX. See example in Switch.
Sum -Summing Amp- Lets you add several modulation signals together before applying them to a destination. This processor can save PatchCords when routing the output to multiple destinations.
EX. ??
Switch - Outputs a digital ?1? whenever the input is greater than ?0.?
EX. Instead of assigning Vel~ to Switch use Vel+ as this will give all postive values. Also assign DC to Switch by -50%. When you play a key of velocity above 64 (50% of 128) the pitch will change to the 22% amount. The DC amount is the bit that controls where the switch will trigger. Switch will only trigger when its value is above zero. A DC value of -50% is -64. Whenever the velocity is under 64, Switch will not trigger. If the DC offset was not there then the pitch would constantly be playing at 22% as Switch value would always be greater than 0. If you change the amount of Switch to -75% then you will need a velocity of 96 (75% of 128) or above to change the pitch. See image below.
Abs -Absolute Value- This function inverts negative input values and outputs only positive values.
EX. ??
Diode -Transitor switch, blocks negative input values, passing only positive values.
EX. ??
FlipFlop - The output of this processor alternates between a digital ?1? and digital ?0? each time the input goes positive from zero or a negative value. With an LFO input, the output will be a square wave of half the input frequency.
EX. ??
Quanti -Quantizer- With the input PatchCord set to 100%, the output value is limited to 16 discrete values. The value of the input PatchCord controls the number of steps. The value of the output PatchCord controls the size of the steps.
EX. ??
Gain4X - This processor amplifies the modulation source by a factor of 4.
EX. ??
guys, I just made an update, thanks for the help. I'm gonna try to tackle the definitions of all the weird ones in the next couple days. I dont have examples for them though yet.