Changing footstep volume

Hey,
I was wondering is there a way to make the footstep volume lower/higher when the character is crouched or running? I am using Behavior Designer and wanted a system where if the character is crouched, he cannot be heard.
 
There isn't a built in way to do this. You'll need to create a new script which gets the audio source and adjusts the volume based on the standing or crouching state of the character.
 
what is the purpose of the CharacterFootEffects script? ... there seems to be a Volume option, but that doesn't seem to work.
 
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