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diff --git a/gr-audio/swig/audio_swig.i b/gr-audio/swig/audio_swig.i
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+++ b/gr-audio/swig/audio_swig.i
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+/*
+ * Copyright 2011 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+
+#define GR_AUDIO_API
+
+////////////////////////////////////////////////////////////////////////
+// Language independent exception handler
+////////////////////////////////////////////////////////////////////////
+%include exception.i
+
+%exception {
+    try {
+        $action
+    }
+    catch(std::exception &e) {
+        SWIG_exception(SWIG_RuntimeError, e.what());
+    }
+    catch(...) {
+        SWIG_exception(SWIG_RuntimeError, "Unknown exception");
+    }
+
+}
+
+////////////////////////////////////////////////////////////////////////
+// standard includes
+////////////////////////////////////////////////////////////////////////
+%include "gnuradio.i"
+
+////////////////////////////////////////////////////////////////////////
+// block headers
+////////////////////////////////////////////////////////////////////////
+%{
+#include <gr_audio_source.h>
+#include <gr_audio_sink.h>
+%}
+
+////////////////////////////////////////////////////////////////////////
+// block magic
+////////////////////////////////////////////////////////////////////////
+GR_SWIG_BLOCK_MAGIC(audio,source)
+%include <gr_audio_source.h>
+
+GR_SWIG_BLOCK_MAGIC(audio,sink)
+%include <gr_audio_sink.h>