--- a/scripts/audio/setaudio.m
+++ b/scripts/audio/setaudio.m
@@ -1,12 +1,31 @@
+### Copyright (C) 1996 John W. Eaton
+###
+### This file is part of Octave.
+###
+### Octave is free software; you can redistribute it and/or modify it
+### under the terms of the GNU General Public License as published by
+### the Free Software Foundation; either version 2, or (at your option)
+### any later version.
+###
+### Octave is distributed in the hope that it will be useful, but
+### WITHOUT ANY WARRANTY; without even the implied warranty of
+### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+### General Public License for more details.
+###
+### You should have received a copy of the GNU General Public License
+### along with Octave; see the file COPYING.  If not, write to the Free
+### Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+### 02111-1307, USA.
+
 function setaudio (w_type, value)
   
-# usage: setaudio ([w_type [, value]])
-#
-# executes the shell command `mixer [w_type [, value]]'
+  ## usage: setaudio ([w_type [, value]])
+  ##
+  ## executes the shell command `mixer [w_type [, value]]'
 
-# Written by AW (Andreas.Weingessel@ci.tuwien.ac.at) on Oct 5, 1994
-# Updated by AW on Nov 3, 1994
-# Copyright Department of Probability Theory and Statistics TU Wien
+  ## Written by AW (Andreas.Weingessel@ci.tuwien.ac.at) on Oct 5, 1994
+  ## Updated by AW on Nov 3, 1994
+  ## Copyright Department of Probability Theory and Statistics TU Wien
 
   if (nargin == 0)
     system ("mixer");