Introduction - What are we trying
The reasons for using P.A. systems
are almost as diverse as the buildings they are used in, but
broadly speaking, can be divided into three categories, based
on their function.
This is the most common use, and the easiest
to understand. As churches increasingly include untrained
speakers in their services, the difficulties of making these
people heard by their congregation become greater. In this
instance, the P.A. system amplifies the voice to reinforce
the natural sound of the persons voice.
Much like reinforcement, the aim is to make
sounds louder. However this term is more commonly applied
in situations where the extra volume is required either to
make a sound audible where it would otherwise not be (e.g.
a person speaking in a huge auditorium) or to alter the balance
of sounds (e.g. an acoustic guitar being used as accompaniment
for corporate worship).
Not strictly speaking "P.A." as
such, but often used in the same context - the purpose is
obvious - to produce a recording of an event. In some instances,
for example in small halls where no reinforcement of the voice
is required, recording may be all that is required.
More often however, recording takes second place in the system
to sound reinforcement. It's an important enough subject to
warrant its own section on the site.