If it is necessary to shout for someone to hear you an arm's length away, it is a good indication the sound level is too high.
(someone; to hear away; you; an arm's length) (it; is; a good indication the sound level is too high) (the sound level; is; too high)
someone it the sound level
to hear away is is
you an arm's length
a good indication the sound level is too high
too high