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.
Field recording made during a walking tour of the boston harbor tunnel while under construction during the "big dig" project: huge echoing bangs with high pitched beeps and machine noise in distance.
This is an acid loop i made with free vsti called rubber duck. I run it through various lfo type filters. I've tweaked it to make it a perfectly looping one shot hit at 112 bpm.
Inside line 8 metro in paris, with open window. Biib, starting, 2 minutes trip beetween two stations, then opening doors. Some discreet voices. Paris, 2020. Recorded with zoom h2, ms positionstero wave, 48khz, 24bits.
Sound from london underground stationary train: door opens. "mind the gap between the train and the platform. " "this is east putney. " door warning sound. "the next station is putney bridge. This is a district line train to high street kensington. ".
Recording of a tube journey, starting at one stop and ending at ravenscourt park in london. Includes an announcement at the end and the beeping noise indicating the doors are about to close on the tube at the beginning.