Increase or decrease audio volume

[NailV123]

I want to create a sound that becomes quieter when the player stops, and increases when the player starts walking.

[Everynone]

Is this an abrupt or a gradual change?

[NailV123]

gradual

[NailV123]

It is possible and sharp, just it would be desirable to be gradual.

[NailV123]

Here is the code that I have at the moment