A sound wave of one Pascal amplitude, for example, will sound quite loud, provided that most of the acoustic energy is in the mid-frequencies (1kHz - 4kHz) where the human ear is most sensitive.
(A sound wave of one Pascal amplitude; will sound; quite loud) (most of the acoustic energy; is; in the mid-frequencies) (the human ear; is; most sensitive)
A sound wave of one Pascal amplitude most of the acoustic energy the human ear
will sound is is
quite loud
in the mid-frequencies
most sensitive