Q's about audio for XEmacs

I have a SunOS 4.1.4, which has native audio support, for .au files. 1. Is there any program that can play .wav files on SunOS, or do I need to run on-the-fly conversion from .wav to .au (e.g. 'sox')? 2. All the sound files on the sounds-au package, are they stereo or mono? Thanks. -- /* Amir J. Katz mailto:amir＠nuke-spam.com */ /* [For e-mail, replace 'nuke-spam' with 'ndsoft'] */ /* EagleEye Control Software, LTD. http://www.ndsoft.com */ /* 'Is "tired old cliche" one?' (Steven Wright) */