0:01
Smooth high pitch tone bending
0:01
Smooth digital tone ascending in pitch
0:23
Pedestrian crossing alert for sight impaired - ascending bleep & fast, repetitive staccato beeps. B ...
0:12
Dial tone, numbers keyed, ring tone heard, hook flash button pressed. Heard through earpiece.
0:13
high pitch squeaky and scraping electronic space morse code signal, ascending intensity
1:09
Switches being pressed and the ticking of indicators from a bus, birds in the background
0:19
Course high pitch noise repeating rhythmically
0:01
Digital tape answering machine clunk & beep at end of tape.