|For example a standard cassette
deck has a dynamic range of 55 dB. this may also be referred to as signal
to noise. This means the difference between the quietest sound it can
record and the loudest sound it can capture without distortion is 55 dB.
||By contrast the human
ear can accommodate a range of 120 dB or more though
permanent hearing loss can occur with levels above 90 dB. Standard compact
disc systems have a 96 dB range. a symphony orchestra playing Romantic
music may have a dynamic range of as much as 108 dB.