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Sound waves are usually described with two measurements: frequency and amplitudeThe maximum displacement (difference between an original position and a later position) of the material that is vibrating. Amplitude can be thought of visually ...
http://www.enotes.com/science-experiments-projects/soun...
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Biology question: How do you measure sound? How do you measure sound ? Sound is measured in decibels. The sound of a pin dropping is less than 10 decibels, and the hum of a refrigerator is 35 decibels. ... Sound is measured in decibels.
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wiki.answers.com/Q/How_do_you_measure_sound
wiki.answers.com/Q/How_do_you_measure_sound
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Sound - Wikipedia, the free encyclopedia
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Sound is a travelling wave which is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to b...
en.wikipedia.org/wiki/Sound
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The pitch of a sound depends upon the number of sound waves passing a certain point in one second. f he frequency of a sound is measured in hertz (Hz). the higher the frequency of a sound, then the more high pitched the sound.
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www.bucconeer.worldcon.org/contest/2002e_f2.htm
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A sound level meter (SLM) is the principal instrument for general noise measurement. The indication on a SLM (aside from weighting considerations) indicates the sound pressure, p, as a level referenced to 0.00002 Pa, calibrated on a decibel...
http://www.scribd.com/doc/18027733/Acoustics-CampanelLa...
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A sound level meter is the principal instrument for general noise measurement. The indication on a sound level meter (aside from weighting considerations) indicates the sound pressure, p, as a level referenced to 0.00002 Pa.
http://stason.org/TULARC/physics/acoustics-faq/2-3-How-...
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An introduction to sound level and the decibel. ... On the music acoustics and speech acoustics sites, we plot the sound spectra in dB. The reason for this common practice is that the range of measured sound pressures is large.
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www.phys.unsw.edu.au/jw/dB.html
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The loudness of a sound is usually measured on a logarithmic scale - given the number of powers of 10 over which the pressure amplitude (proportional to the square root of the power) varies, this is understandable.
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www.cmmp.ucl.ac.uk/~ahh/teaching/1B24n/lect13/node3.htm...
www.cmmp.ucl.ac.uk/~ahh/teaching/1B24n/lect13/node3.html
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When exposed to sound, ears perceive tiny changes in pressure. This sound pressure level can be measured and is commonly expressed in decibels (dB). An average human starts to hear sounds at a certain level that has arbitrarily been defined as 0 decibel. ... Examples of sound pressure levels (in dB SPL):
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ec.europa.eu/health/opinions/en/hearing-loss-personal-m...
ec.europa.eu/health/opinions/en/hearing-loss-personal-music-player-mp3/l-2/2-sound-measurement-decibel.htm
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