0:14
Electric induction microphone - DC hum, slow pulsing, quiet.
5:00
Washington DC, residential area morning - bird chorus.
0:44
Washington DC metro ambience - train arrives, distant announcement.
1:23
Washington DC metro ambience - train arrives, conductor talks, trains leaves. (2)
1:08
Washington DC metro ambience - train arrives, conductor talks, trains leaves. (1)
0:01
[Loop]. Light electric current sound.
0:02
[Loop]. Electric current.
0:04
[Loop]. Electric current.
0:01
[Loop]. Electric current.