[<< wikibooks] Sensory Neuroscience: Hearing and speech/Sound/key terms
=== Parameters for describing sound ===
Wavelength
the distance between the endpoints of a cycle (two peaks, for example)
usually measured in cmFrequency
number of oscillations in one second
frequency is a physical property in the world, but pitch is the mental experience of that property (the "highness" of a sound)
usually measured in Hz
Period
time required for one oscillation
usually measured in ms

f
=

1
T

{\displaystyle f={\frac {1}{T}}}

λ
=

c
f

{\displaystyle \lambda ={\frac {c}{f}}}

Amplitude
the magnitude of change in the pressure over one oscillationImpedence
the reluctance with which the medium can be forced into oscillation