Louder sounds are caused by greater variation in pressure - 1 Pascal, for example, will sound quite loud, provided that most of the acoustic energy is in the mid-frequencies (1kHz - 4kHz) where the ear is most sensitive.
(most of the acoustic energy; is; in the mid-frequencies) (the ear; is; most sensitive) (Louder sounds; are caused; by greater variation in pressure - 1) Context(Louder sounds are caused,List([0, 24))):(Pascal; will sound; quite loud)
Louder sounds are caused,List([0, 24))
most of the acoustic energy the ear Louder sounds Pascal
is is are caused will sound
in the mid-frequencies
most sensitive
by greater variation in pressure - 1
quite loud