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Steam Engine Audio


ImpactCount This value increments everytime the train collides with something but does not derail.
DistanceTravelled The current distance travelled in metres since the scenario was loaded.
BrakeAmount The total combined braking force on the Consist 0 -> 1
TrainBrakeAmount As BrakeAmount? but for the Train Brake only.
LocoBrakeAmount As BrakeAmount? but for the Loco Brake only.
ControlType 0=simple, 1=intermediate, 2= Expert
AbsoluteSpeed The speed in metres per second.
WheelSlipAmount 0 = Train Stationary, 1=Normal running (no slip), 3=Full wheelslip.


Tender includes all above parameters plus:

WaterAmount The current fuel amount.
CoalAmount the current fuel amount.



The Steam Audio control also contains a unique section which is used to trigger steam exhausts (chuffs) and any regular mechanical type sounds which are based on the rotation of the main driving wheel (see image below).

It is vital that the two parameters Drive wheel diameter and Number of Cylinders are set correctly in order to have the correct number of chuffs per drive wheel rotation.

The Steam Audio control has a unique Exhaust section which is essentially a oneshot controller.

image of steam audio blueprint


To add chuff sounds insert a Steam Exhaust element into the Exhaust section. Use AbsoluteSpeed as the controller with a valid start and end value. This way you can use various sets of chuffs of shorter lengths for different train speeds.

If you add one Steam Exhaust Element called 1 then everytime a chuff is triggered you will trigger 1, 1, 1, 1, 1, 1 etc

If you add three Steam Exhaust Elements called 1, 2 and 3 then everytime a chuff is triggered you will trigger a repeating sequence of 1, 2, 3, 1, 2, 3, 1, 2, 3. Of course each sound referenced in here could also be a random oneshot to add variation.





Created by: admin. Last Modification: Monday 15 of June, 2009 11:14:55 BST by admin.

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