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SWS-AlexVletsas avatar image
SWS-AlexVletsas asked tonythebest answered

Engine sound varying with thrust.

We noticed that the propeller sounds vary based on the thrust. Using the Kodiak and legacy tables, when the propeller gets into negative efficiency there's a pause in propeller sounds and you only hear the wind.

We also noticed that if you're on the ground, at idle and at a steady taxi speed, the sound will cut when the propeller thrust is negative and will play when positive.


A customer posted this video to showcase the problem:


aircraftflightmodelsound
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FlyingRaccoon avatar image FlyingRaccoon ♦♦ commented ·

Hello @SWS-AlexVletsas


Have you changed anything in the way the propeller sound is configured in Wwise?
That's probably something you want to have a look at as I'm not sure the default RTPC configuration can support that case.

Also, if we can have a look at your sound.xml file, that would help

Regards,
Sylvain

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FlyingRaccoon avatar image FlyingRaccoon ♦♦ commented ·
XML and CFG are fine. You have a WwiseRTPC based on the PROP THRUST simvar and this simvar transitions from a positive to a negative value. Can you show us how that RTPC is configured in Wwise?
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1 Answer

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tonythebest avatar image
tonythebest answered

I have exctly the same problem in kodiak 100. When you decrease power the engine seem to go in idle and the aircraft lose speed very quikly. So it is impossible to reduce power in a linear way.

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