Put it at the start of a station sequence, just before the doors close, then follow it with a bell ding as the train pulls away. For a photo stop later in the same trip, add a camera shutter after the platform shot settles.
このサウンドについて
This is a short electronic signal lasting just over three seconds, with a quick upward blip followed by a lower second tone. It feels clean, familiar and quietly satisfying, like a small daily task done right. It is the tap-on and tap-off sound from Sydney trains, buses, ferries and light rail, used with the Opal card across New South Wales.