[Emacspeak] Some auditory icon related bugs/issues

["T.V Raman" <raman@xxxxxxxxxx>]

1. I fixed the bug in emacspeak-preamble, later I'll likely move the
   defconst of emacspeak-icon to emacspeak.el since that is the only
   place it is used.

   2. I'm confused as to why you hit the location issue with the play
      executable -- it's defined here:
      (defconst sox-play (executable-find "play") "Location of play")

      so the location is being detected, not hard-wired.

      I'd like to get to the bottom of that first before deciding
      what/how we need to address.
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