  Acoustic spacetimes have been known to offer analogue models for black hole
physics and cosmology. Within this context, aspects of analogue quantum field
theories in curved spacetime are studied. In particular some new comments have
been made on the analogue Hawking temperature including a quick derivation of
the result. Further, analogue cosmology is explored, within which, an acoustic
version of the Parker-Toms model is proposed and the corresponding quantities
have been calculated. The limits of the acoustic analogue are emphasised.
