Reference: attributes

rate attribute

rate
Type	Element	Description	Use
		Rate of change in values measures in seconds.	Default: 0

Change the values of a foot pedal, for example, involves two parameters: the increase or decrease in value, and the time over which such a change must occur. Values associated with events refer to the non-time change, while the time-change is specified with the rate attribute. When rate is not made explicit, a zero value is assumed.

Possible values:

0.000 seconds (thus milliseconds) to infinity, although a value such as 300 seconds (ie 5 minutes) is probably already unrealistic.

Example

<channel 4 foot="4.64:0.5"> ... </channel>

This means that the foot pedal's value is increased to 4.64 (where 0.0 is obviously zero and 9.99 is the maximum depression) and that it takes 0.5 seconds until it reaches that value from the previous value.