Gets or sets the rate, relative to its parent, at which time progresses for this Timeline.
<object SpeedRatio="Double" .../>
value = object.SpeedRatio
object.SpeedRatio = value
A finite value greater than 0 that describes the rate at which time progresses for this timeline, relative to the speed of the timeline's parent or, if this is a root timeline, the default timeline speed.
This property is read/write. The default value is 1.
Momentary or nonlinear apparent speed changes to animations can be accomplished using spline animations. For details, see Silverlight Key-Frame Animations Overview .