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diff --git a/audio/softsynth/mt32/BReverbModel.h b/audio/softsynth/mt32/BReverbModel.h
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+++ b/audio/softsynth/mt32/BReverbModel.h
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+/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher
+ * Copyright (C) 2011, 2012 Dean Beeler, Jerome Fisher, Sergey V. Mikayev
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MT32EMU_B_REVERB_MODEL_H
+#define MT32EMU_B_REVERB_MODEL_H
+
+namespace MT32Emu {
+
+struct BReverbSettings {
+	const Bit32u numberOfAllpasses;
+	const Bit32u * const allpassSizes;
+	const Bit32u numberOfCombs;
+	const Bit32u * const combSizes;
+	const Bit32u * const outLPositions;
+	const Bit32u * const outRPositions;
+	const Bit32u * const filterFactors;
+	const Bit32u * const feedbackFactors;
+	const Bit32u * const dryAmps;
+	const Bit32u * const wetLevels;
+	const Bit32u lpfAmp;
+};
+
+class RingBuffer {
+protected:
+	Bit16s *buffer;
+	const Bit32u size;
+	Bit32u index;
+
+public:
+	RingBuffer(const Bit32u size);
+	virtual ~RingBuffer();
+	Bit32s next();
+	bool isEmpty() const;
+	void mute();
+};
+
+class AllpassFilter : public RingBuffer {
+public:
+	AllpassFilter(const Bit32u size);
+	Bit32s process(const Bit32s in);
+};
+
+class CombFilter : public RingBuffer {
+protected:
+	const Bit32u filterFactor;
+	Bit32u feedbackFactor;
+
+public:
+	CombFilter(const Bit32u size, const Bit32u useFilterFactor);
+	virtual void process(const Bit32s in); // Actually, no need to make it virtual, but for sure
+	Bit32s getOutputAt(const Bit32u outIndex) const;
+	void setFeedbackFactor(const Bit32u useFeedbackFactor);
+};
+
+class DelayWithLowPassFilter : public CombFilter {
+	Bit32u amp;
+
+public:
+	DelayWithLowPassFilter(const Bit32u useSize, const Bit32u useFilterFactor, const Bit32u useAmp);
+	void process(const Bit32s in);
+	void setFeedbackFactor(const Bit32u) {}
+};
+
+class TapDelayCombFilter : public CombFilter {
+	Bit32u outL;
+	Bit32u outR;
+
+public:
+	TapDelayCombFilter(const Bit32u useSize, const Bit32u useFilterFactor);
+	void process(const Bit32s in);
+	Bit32s getLeftOutput() const;
+	Bit32s getRightOutput() const;
+	void setOutputPositions(const Bit32u useOutL, const Bit32u useOutR);
+};
+
+class BReverbModel : public ReverbModel {
+	AllpassFilter **allpasses;
+	CombFilter **combs;
+
+	const BReverbSettings &currentSettings;
+	const bool tapDelayMode;
+	Bit32u dryAmp;
+	Bit32u wetLevel;
+	void mute();
+
+public:
+	BReverbModel(const ReverbMode mode);
+	~BReverbModel();
+	void open(unsigned int sampleRate);
+	void close();
+	void setParameters(Bit8u time, Bit8u level);
+	void process(const float *inLeft, const float *inRight, float *outLeft, float *outRight, unsigned long numSamples);
+	bool isActive() const;
+};
+
+}
+
+#endif