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chapter15 deffintons
chapter 15
| Question | Answer |
|---|---|
| frequency | sound tells you how fast pressure oscillates |
| superpostion principle | sound creates by superpstion of many frequncies |
| decibels | loudness of a sound |
| speaker | device spicificly to reproduce sounds accuratly |
| acoustics | sound and technology of sound |
| microphone | transforms sound waves into electrical signal |
| stereo | recorded sound you hear |
| longitudinal waves | air thats compressed in direction of travel |
| wavelength | sound in air thats compairable to size of everyday objects |
| subsonic | moving slower than sound |
| shock wave | forms when wave fronts pile up |
| supersonic | moveing faster than sound |
| reverbration | multible scho |
| fourier's theorm | any wave can be repersented as a sum of single frquency waves |
| frequency spectrum | graph that shows amplitude of each component frequency in complex wave. |
| sonogram | special graph that shows how lound sound is in diffrent frequencies. |
| cochlea | tiny fluid filled organ |
| rhythm | reqular time pattern in a sound |
| musical scale | pattern of frequencies |