Boom Seasons of Earth Euro Autumn SURRAutumn is a short, unpredictable acoustic window sitting between the density of summer and the silence of winter. We captured that friction. This library delivers the high fidelity nature sound effects you need to bridge that gap. You get thinning canopies, rustling leaf beds, and the distinct, unstable wind of the transition. It provides the precise autumn (or fall) ambience that defines the season.