Typical Background Sound Pressure levels
Throughout the AllAboutElectrics website, we specify the background noise levels of our products in a form of a dB(A) rating. This is often difficult to judge regarding the suitability in an installed environment and to assist, we have listed below some rough examples of typical background noise levels to provide a point comparison in the decibel rating.
|
dB (Weighted) |
Similar Sound |
|
0 |
Threshold of Audibility(Acute Hearing) |
|
20 |
Soft Whisper at 1.5 metres |
|
30 |
Empty church auditorium |
|
35 |
Unoccupied private residents |
|
40 |
Library/ Museum |
|
45 |
Quiet private office |
|
50 |
Hotel Restaurant - quiet speech at close proximity |
|
55 |
Drapers Shop |
|
60 |
General Office |
|
65 |
Occupied Restaurant with average attendance |
|
70 |
Merchandised Office |
|
75 |
Factory Noise - Assembly Work |
|
80 |
Factory Machine Shop |
|
85 |
Underground train |
|
90 |
Engine room (noisy) |
|
95 |
Aircraft cabin |
|
100 |
Ship siren at 30 metres |
|
110 |
Boiler Plate Construction Shop |
|
120 |
Aircraft take off at 30 metres |
|
130 |
Threshold of pain |
