The loudness of sounds is measured in decibels (dB) and the frequency is measured in Hertz (Hz) represents the tone of the sound such as high pitch whistling or the low roar of a jet plane.
| 10 dB | Normal breathing |
| 20 dB | Rustling leaves, mosquito |
| 30 dB | Whisper |
| 40 dB | Stream, refrigerator humming |
| 50-60 dB | Quiet office |
| 50-65 dB | Normal conversation |
| 60-65 dB | Laughter |
| 70 dB | Vacuum cleaner, hair dryer |
| 75 dB | Dishwasher |
| 78 dB | Washing machine |
| 80 dB | Garbage disposal, city traffic noise |
|
Prolonged exposure to any noise above 90 dB can |
|
| 84 dB | Diesel truck |
| 70-90 dB | Recreational vehicle |
| 88 dB | Subway, motorcycle |
| 85-90 dB | Lawnmower |
| 100 dB | Train, garbage truck |
| 97 dB | Newspaper press |
| 98 dB | Farm tractor |
|
Regular exposure of more than 1 minute |
|
| 103 dB | Jet flyover at 100 feet |
| 105 dB | Snowmobile |
| 110 dB | Jackhammer, power saw, symphony orchestra |
| 120 dB | Thunderclap, discotheque/boom box |
| 110-125 dB | Stereo |
| 110-140 dB | Rock concerts |
| 130 dB | Jet takeoff, shotgun firing |
| 145 dB | Boom cars |
Taken from http://www.tlc-direct.co.uk/Technical/Sounds/Decibles.htm
|
Sound Levels of Music |
|
|
Normal piano practice |
60 -70dB |
|
Fortissimo Singer, 3′ |
70dB |
|
Chamber music, small auditorium |
75 – 85dB |
|
Piano Fortissimo |
84 – 103dB |
|
Violin |
82 – 92dB |
|
Cello |
85 -111dB |
|
Oboe |
95-112dB |
|
Flute |
92 -103dB |
|
Piccolo |
90 -106dB |
|
Clarinet |
85 – 114dB |
|
French horn |
90 – 106dB |
|
Trombone |
85 – 114dB |
|
Tympani & bass drum |
106dB |
|
Walkman on 5/10 |
94dB |
|
Symphonic music peak |
120 – 137dB |
|
Amplifier, rock, 4-6′ |
120dB |
|
Rock music peak |
150dB |
Taken from http://www.gcaudio.com/resources/howtos/loudness.html
Rainbow Ears 