the ear

The Ear MUM 2600 Professor Calle Miami-Dade College SEDT

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The Ear. MUM 2600 Professor Calle Miami-Dade College SEDT. Basic terms. SPL - Sound pressure level dB - Decibel. An exponential unit of measurement equaling 1/10th of a bell named after Alexander Graham Bell. - PowerPoint PPT Presentation

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The Ear

MUM 2600Professor Calle

Miami-Dade College SEDT

MUM 2600Professor Calle

Miami-Dade College SEDT

http://www.drcalle.com/mum2600.htm

mailto:[email protected]

http://www.drcalle.com/mum2600.htm

mailto:[email protected]

Basic terms

SPL - Sound pressure level dB - Decibel. An exponential unit of

measurement equaling 1/10th of a bell named after Alexander Graham Bell.

Sound waves - Sound radiates outwardly in a spherical pattern and is absorbed by the ear and recording devices as a wave.

Amplitude - volume. Frequency - pitch.

Basic terms - continued

Velocity - sound travels through the air at 68˚F at approximately 1130 feet per second. The speed increases as the temperature rises.

Cycle - one complete excursion of a wave.

Period - The time required to complete one cycle.

Basic terms - continued

Hertz - A unit of measurement of the number of frequency cycles occurring in one second.

Compression - An area containing higher than normal sound pressure.

Rarefaction - An area containing lower than normal sound pressure.

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