The Velocity Curve Select key (VEL CURVE) on the Oxygen (blue) Series keyboards is used to change the touch sensitivity of the keyboard. This setting lets you decide how the force with which you hit a key affects the volume at which a note plays. Oxygen (blue) Series keyboards provide 7 different sensitivity options:

1 = C1 is a sensitivity setting that generates lower velocity values for the same force. This setting is useful for playing more quietly, even if you tend to strike the keys harder.

2 = C2 is the default setting, and is designed to be useful for most players with an "average" touch (people who play with an average amount of force).

3 = C3 is a sensitivity setting that generates higher velocity values for the same force. This setting is useful for playing more loudly, even if you tend to strike the keys with less force.

4 = C4 is a sensitivity setting that generates an equal velocity value for a given amount of force, resulting in a linear (or neutral) keyboard response.

5 = F1 is a setting that effectively disables sensitivity, meaning the keyboard will generate a fixed velocity value of 64 (on a scale of 0-127) regardless of how hard or soft the keys are struck.

6 = F2 is a setting that effectively disables sensitivity, meaning the keyboard will generate a fixed velocity value of 100 (on a scale of 0-127) regardless of how hard or soft the keys are struck.

7 = F3 is a setting that effectively disables sensitivity, meaning the keyboard will generate a fixed velocity value of 127 (on a scale of 0-127) regardless of how hard or soft the keys are struck.

When a new Velocity Curve is selected using either method described below, the LED screen will show the first 4 Velocity curves as C1 - C4, and the three fixed velocity settings as F1 - F3.

1. Press the Advanced button
2. Press the Velocity Curve key - the LED display will show the current velocity curve (for example ".C.2")
3. Type the Velocity Curve number (1 through 7) using the number keys
4. Press the Enter key
   
   - or -

1. Press the Advanced button
2. Press the Velocity Curve key - the LED display will show the current velocity curve (for example ".C.2")
3. Use the "-" and "+" buttons to scroll through the Velocity Curves (C1 through F3)
4. Press the Enter key