Sound & Signal
The school bell and the day divided into fixed portions
An electric bell cut the day into intervals nobody had to watch a clock for. Where it has been switched off, something has to…
Sound & Signal
Noises, tones and interruptions that used to structure a day.
21 articles · updated August 11, 2026 · page 2 of 2
Sound & Signal
The siren tested on a fixed day and the warning nobody expects now
Public warning sirens were once tested on a schedule, so entire populations knew a sound that meant stop and listen. Most of that…
Sound & Signal
The ice cream van chime and sounds that had to advertise themselves
Some trades announced their arrival with a sound because there was no other way to tell a street they were there.
Sound & Signal
Street cries and the trades that had to be shouted
For most of urban history goods and services were sold by voice. The calls were a working technology, and they were documented as…
Sound & Signal
Hiss, crackle and the silence recordings never used to have
Every recording medium added a noise floor of its own. Digital removed it, and listeners discovered that the noise had been…
Sound & Signal
The dial tone and the reassurance of an open line
Lifting a handset produced a sound confirming the network was ready for you. Nothing in modern communication offers that…
Sound & Signal
Tuning between stations and the map that was made of static
Moving a needle across a dial produced a landscape of noise, foreign voices and half-caught signals. Digital tuning goes straight…
Sound & Signal
Last orders and the bell that ended an evening for everybody
A licensed closing time meant a whole room was told to finish at once. Flexible hours removed the signal and the shared ending it…
Sound & Signal
Touch tones and the melody every telephone number used to have
Dialling produced a short sequence of chords unique to each number. The tones are still there in the system and nobody hears them…