A train ride completly underground from with the Ooedo Line from Shinjuku-nishiguchi to Ueno-Okachimachi. You can hear the wifi network (steady monotonous rhythm) provided by the owner of the line at each station (there must be 9 stations). The first 4min detektor was waiting for the train. 2nd train station is coming closer at 05:18, 3rd 08:25, 4th 10:32, 5th 12:15, 6th 14:16, 7th 18:44, 8th 20:24 and the 9th 22:44. Before each station you can hear the same sonic process. Maybe it is the mobile phones establishing connection to BTSs? Very strongly pulsed signals.

Ooedo Line

A walk around the JR Shinjuku Station, which is one of the most busy train stations in Japan. You can hear the density of the trans-sonical infoscape quite well (wifi, 3G-mobilephones, BTSs, GPS and other unrecognizable signals). Outside the labyrinthine building (9:09 and 14:33) the detektor gets overloaded due to the presence of many BaseTranseiverStations (BTS).

Shinjuku Station walk around