Unit of sound intensity • Decibel (dB) one-tenth of a Bel • Alexander Graham Bell, telephone inventor • the faintest detectable sound has an absolute threshold of 0 dB • each change of 10 dB, the perceived loudness doubles
Unit of sound intensity• Decibel (dB) one-tenth of a Bel• Alexander Graham Bell, telephone inventor• the faintest detectable sound has an absolute threshold of 0 dB• each change of 10 dB, the perceived loudness doubles