de30ac notch 1-8

here is a 1 minute audio of a de/dm30ac going from notch 1 to 8 departing a station + traction motor sound included, by the end of the audio, it goes right back to notch 1 arriving a station with a traction motor sound wines back down knowing that the locomotive is at slow speed applying break and to when you dont hear it anyone when it stops, meaning its now stationary, for when its departing, the traction motor sound will not continue when the speed increases around 10-15 mph