The audio begins with the distant, unmistakable rumble of a subway train approaching. As the noise grows louder, you can hear the anticipatory hum of electric energy, hinting at the powerful machine about to make its appearance. Suddenly, the distinct sound of a train pulling into the station takes over - a combination of metal against metal and the whoosh of air being displaced. The hustle and bustle of passengers alighting and boarding is subtly noticeable in the background - a faint shuffle of movement, punctuated by the occasional murmur of conversation. The familiar sound of doors sliding shut signals the train's imminent departure. The audio then immerses you in the dramatic noise of the train leaving the station. The low growl of the engine revving up is followed by the rhythmic clatter of the wheels against the tracks, gradually increasing in speed. The echo of the subway tunnel amplifies these sounds, creating a unique, mesmerizing melody that gradually fades away, leaving b