  The purpose of this paper is to show that under a part of generalized
Arthur's A-packet conjecture, locally generic cuspidal automorphic
representations of a quasisplit group over a number field are of Ramanujan
type, i.e., are tempered at almost all places. The A-packet conjecture allows
one to reduce the problem to a special case of a general local question about
the components of the corresponding Langlands L-packet which is then answered
here in its generality.
