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diff --git a/engines/lastexpress/data/snd.h b/engines/lastexpress/data/snd.h
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+++ b/engines/lastexpress/data/snd.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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
+ * of the License, or (at your option) any later version.
+
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef LASTEXPRESS_SND_H
+#define LASTEXPRESS_SND_H
+
+/*
+	Sound format (.SND / .LNK)
+
+	uint32 {4}   - data size
+	uint16 {2}   - number of blocks
+
+	// for each block
+	    int16 {2}    - initial sample
+	    byte {1}     - initial index
+	    byte {1}     - unused (00)
+	    byte {x}     - IMA ADPCM sample codes
+*/
+
+#include "common/stream.h"
+#include "sound/mixer.h"
+
+namespace Audio {
+	class AudioStream;
+	class QueuingAudioStream;
+}
+
+namespace LastExpress {
+
+class SimpleSound {
+public:
+	SimpleSound();
+	virtual ~SimpleSound();
+
+	void stop() const;
+
+protected:
+	void loadHeader(Common::SeekableReadStream *in);
+	Audio::AudioStream *makeDecoder(Common::SeekableReadStream *in, uint32 size) const;
+	void play(Audio::AudioStream *as);
+
+	uint32 _size;   ///< data size
+	                ///<  - NIS: size of all blocks, including those located in the matching LNK file
+	                ///<  - LNK: size of the LNK file itself, including the header
+	                ///<  - SND: size of all blocks
+	uint16 _blocks; ///< number of blocks
+	uint32 _blockSize;
+	Audio::SoundHandle _handle;
+};
+
+class StreamedSound : public SimpleSound {
+public:
+	StreamedSound();
+	~StreamedSound();
+
+	bool load(Common::SeekableReadStream *stream);
+};
+
+class AppendableSound : public SimpleSound {
+public:
+	AppendableSound();
+	~AppendableSound();
+
+	void queueBuffer(const byte *data, uint32 size);
+	void queueBuffer(Common::SeekableReadStream *bufferIn);
+	void finish();
+
+private:
+	Audio::QueuingAudioStream *_as;
+	bool _finished;
+};
+
+} // End of namespace LastExpress
+
+#endif // LASTEXPRESS_SND_H