The sample are mixed and processed. The fade-in/stopping done by filters & the noises, the full sample done by glitching, granulize & adding more sounds: doorclosing, drive starting, -stopping & dooropening/drive ending.
Recorded in june 2016 on a new york city subway train stopping at times square station on the queens-bound 7 local train line. Recorded with a zoom h2n in 4-channel mode - this is the xy recording only (msg me if you want the raw ms recording!), without a windshield. File has not been modified.
This is a field recording of the hacıosman subway. I used my iphone to record this sound. I took this train to go basically everywhere, most of the week. I think the train is called m2 but i'm not sure.