Is there a word that refers to the sound made when we are moving in a type of terrain? It should be a word that useful for video games, esp. 2d ones where moving through a grass or solid terrain result in a different sound being played. It doesn't necessarily have to be specific to video games, but it would be nice if the word was a specific word used by video game developers. I can't think of a word like that. For visuals, we have textures, but we don't have a word for a unit of sound, esp. that implies the same sound being played as a unit of sound at a trigger X.
For example:
The ___ was repeatedly heard as Link walked in the tall grass.