- Sound levels for nonlinear (decibel) and linear (intensity) scales
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▪ Tabledecibels intensity* type of sound130 10 artillery fire at close proximity (threshold of pain)120 1 amplified rock music; near jet engine110 10–1 loud orchestral music, in audience100 10–2 electric saw90 10–3 bus or truck interior80 10–4 automobile interior70 10–5 average street noise; loud telephone bell60 10–6 normal conversation; business office50 10–7 restaurant; private office40 10–8 quiet room in home30 10–9 quiet lecture hall; bedroom20 10–10 radio, television, or recording studio10 10–11 soundproof room0 10–12 absolute silence (threshold of hearing)*In watts per square metre.See as table:
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Universalium. 2010.