  We present an initial set of factors, features, and constraints for
developing a Computational Auditory System (CAS, aka less formally an
artificial ear, AE) for use by cognitive architectures. We start to define a
CAS and what tasks it should be able to perform. We then outline the features
of a CAS for use by a cognitive architecture and factors that influence its
performance. We conclude with an update on what has been created so far and
insights on how to create and use a CAS in a cognitive architecture and include
a set of functionalities for an artificial ear.
