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diff --git a/libs/qm-dsp/dsp/wavelet/Wavelet.h b/libs/qm-dsp/dsp/wavelet/Wavelet.h
new file mode 100644
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+++ b/libs/qm-dsp/dsp/wavelet/Wavelet.h
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+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    QM DSP Library
+
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2009 Thomas Wilmering.
+
+    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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef _WAVELET_H_
+#define _WAVELET_H_
+
+#include <string>
+#include <vector>
+
+class Wavelet
+{
+public:
+    enum Type {
+        Haar = 0,
+        Daubechies_2,
+        Daubechies_3,
+        Daubechies_4,
+        Daubechies_5,
+        Daubechies_6,
+        Daubechies_7,
+        Daubechies_8,
+        Daubechies_9,
+        Daubechies_10,
+        Daubechies_20,
+        Daubechies_40,
+	Symlet_2,
+	Symlet_3,
+	Symlet_4,
+	Symlet_5,
+	Symlet_6,
+	Symlet_7,
+	Symlet_8,
+	Symlet_9,
+	Symlet_10,
+	Symlet_20,
+	Symlet_30,
+	Coiflet_1,
+	Coiflet_2,
+	Coiflet_3,
+	Coiflet_4,
+	Coiflet_5,
+	Biorthogonal_1_3,
+	Biorthogonal_1_5,
+	Biorthogonal_2_2,
+	Biorthogonal_2_4,
+	Biorthogonal_2_6,
+	Biorthogonal_2_8,
+	Biorthogonal_3_1,
+	Biorthogonal_3_3,
+	Biorthogonal_3_5,
+	Biorthogonal_3_7,
+	Biorthogonal_3_9,
+	Biorthogonal_4_4,
+	Biorthogonal_5_5,
+	Biorthogonal_6_8,
+	Meyer,
+
+        LastType = Meyer
+    };
+
+    static std::string getWaveletName(Type);
+
+    static void createDecompositionFilters(Type,
+                                           std::vector<float> &lpd,
+                                           std::vector<float> &hpd);
+};
+
+#endif