Yamaha SY85 Owner's Manual page 171

Atk (Attack rate)
Range: 0 ... 63
Controls: [CS5], [-1] [+1], Dial
Sets the attack rate for the selected envelope. "63" produces the fastest
attack, while "0" produces the slowest attack.
Sus (Sustain level)
Range: 0 ... 63
Controls: [CS6], [-1] [+1], Dial
Sets the sustain level for the selected envelope.
Rel (Release rate)
Range: 0 ... 63
Controls: [CS7], [-1] [+1], Dial
Sets the release rate for the selected envelope.
Velo (Velocity sensitivity)
Range: -7 ... +7
Controls: [CS8], [-1] [+1], Dial
Determines how the output level of the current voice changes in response to
velocity changes (e.g. keyboard dynamics).
Plus "+" settings produce higher output level in response to higher velocity
values — i.e. the harder a key is played, the louder the sound. The maximum
setting of "+7" produces the maximum level variation in response to velocity
changes. Minus "-" settings produce the opposite effect: lower level in response
to higher velocity. A setting of "+0" results in no level variation.
QUICK EDIT
VOICE EDIT MODE /
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