Vehicle: Rpm driven sounds

[lPiru]

Hi! i’ve been trying to get sounds to my vehicle, currently i only have when i enter the car and when i exit the car,

i have a cue with 3 states: idle, medium and max speed, and my max vehicle rpm is 5729

i need them to play at a different rpm values through a crossfrade by parameter.

ive seen some tutorials but nothings works for me pls helpp

[lPiru]

@Grot13

Crossfade is the right node, how do you set your parameter?

well i already fix the problem but now i have 2 more:

1. i want the keep the idle sound going when i have my vehicle in the idle state.

2. i need to change the sound when the vehicle is in air to a “jump sound”

[lPiru]

@Grot13

I don’t understand, at low RPM you are in idle already, no?

You can use a branch with parameter inside of the CUE, maybe with a mixer node if you want to keep the engine sound. But if your jump sound is just a punctual one, maybe spawn sound in the vehicle BP can be enough. It really depends on what you precisely want

The sounds only play when i start moving

ill try the branch inside the cue

another this i was wondering is how to setup the skid sounds, sorry to bother i’m pretty noob using unreal tho

[lPiru]

@Grot13

So when not moving, what is rpm value? From what you have set, sound should be playing even if rpm is 0, do you activate or deactivate the sound component at some point?

For skidding, maybe you could try with a dot product between the car forward vector and its velocity :

Basically dot product tells you if your two vectors are in the same direction, so under a certain threshold (I’ve put 0.93 here but you will have to tweak yourself if you want it more sensitive or not) it would mean that the vehicle is not aligned with its momentum.
If you prefer to work in degrees, use “ACosd” node after the dot, and use "superior to " instead of “inferior to” (and choose the degrees you want)

i tried the blueprint u posted but doesnt seem to work with neither the vehicle velocity/forwardvector and the mesh velocity/forwardvector

there isnt a way to get that the vehicle is sliding from the vehicle movement component? just as the rpm?

i fixed the idle sound it starts at 0,0 so now it plays even when i’m not using the vehicle bp?? aaa

[EONStudio]

Are you using floating pawn movement?