Yamaha Electone EL-900 Owner's Manual page 120

NOTE:
Some voices may not have remarkable
effect using these AWM parameters.
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120
3) AWM Operators
Each algorithm has a special AWM (Advanced Wave Memory) Operator.
AWM Operators are not sine waves like the other Operators, but are digital
recordings of actual instrument sounds, such as piano, violin, guitar, and so
on. The AWM Operatorﾕs sound is mixed with the sounds of the other
Operators in the algorithm to create realistic voices.
AWM Operator
1
1 OL (Output Level)
Determines the level of the AWM sound.
Range: 0-127
2 AR (Attack Rate)
Determines how quickly the Operator will reach its maximum level
after the key is played. Lower values produce a slower attack.
Range: -64 - +63
3 DR (Decay Rate)
Determines how much time it takes for the Operator to reach its
second level.
Range: -64 - +63
4 RR (Release Rate)
Determines how much time it takes for the level to reach 0 after the
key is released.
Range: -64 - +63
5 LOW
Determines to boost or decrease the output of the lower range of the
keyboard.
Range: -64 - +63
6 HIGH
Determines to boost or decrease the output of the higher range of the
keyboard.
Range: -64 - +63
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