SLHS 1150 Lecture Notes - Lecture 7: Rarefaction, Sound, Compact Car

• School: UConn
• Department: Speech, Language and Hearing Sciences
• Course: SLHS 1150
• Professor: Jackie Di Francesco

Document Summary

The science that deals with the production, control, transmission, reception, and effects of sound. Sound vibrating energy transmitted by pressure waves through a medium. The higher the frequency, the closer the waves are together. Physical measurement (how to measure frequency and intensity) Waves occur as the compression and rarefaction of a medium. How many cycles per second period=1/frequency frequency=1/period. Time required to complete a vibrational cycle. Phase the position of a point in time on a waveform cycle. If waves are in phase they have a constructive interference. If waves are out of phase they have a destructive interference and cancel each other out. A measurement of the energy of a sound wave. Expressed as a ration of a measured pressure to a known reference pressure. We express intensity in terms of db spl. The higher the amplitude, the bigger the wave. This is the only one we care about. Are made up of only one wave.