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diff --git a/extern/audaspace/include/fx/BinauralSound.h b/extern/audaspace/include/fx/BinauralSound.h
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+++ b/extern/audaspace/include/fx/BinauralSound.h
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+/*******************************************************************************
+* Copyright 2015-2016 Juan Francisco Crespo Galán
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+******************************************************************************/
+
+#pragma once
+
+/**
+* @file BinauralSound.h
+* @ingroup fx
+* The BinauralSound class.
+*/
+
+#include "ISound.h"
+#include "HRTF.h"
+#include "Source.h"
+#include "util/ThreadPool.h"
+#include "util/FFTPlan.h"
+
+#include <memory>
+#include <vector>
+
+AUD_NAMESPACE_BEGIN
+
+/**
+* This class represents a sound that can sound different depending on its realtive position with the listener.
+*/
+class AUD_API BinauralSound : public ISound
+{
+private:
+	/**
+	* A pointer to the imput sound.
+	*/
+	std::shared_ptr<ISound> m_sound;
+
+	/**
+	* A pointer to an HRTF object with a collection of impulse responses.
+	*/
+	std::shared_ptr<HRTF> m_hrtfs;
+
+	/**
+	* A pointer to a Source object which represents the source of the sound.
+	*/
+	std::shared_ptr<Source> m_source;
+
+	/**
+	* A shared ptr to a thread pool.
+	*/
+	std::shared_ptr<ThreadPool> m_threadPool;
+
+	/**
+	* A shared ponter to an FFT plan.
+	*/
+	std::shared_ptr<FFTPlan> m_plan;
+
+	// delete copy constructor and operator=
+	BinauralSound(const BinauralSound&) = delete;
+	BinauralSound& operator=(const BinauralSound&) = delete;
+
+public:
+	/**
+	* Creates a new ConvolverSound.
+	* \param sound The sound that will be convolved. It must have only one channel.
+	* \param hrtfs The HRTF set that will be used.
+	* \param source A shared pointer to a Source object that contains the source of the sound.
+	* \param threadPool A shared pointer to a ThreadPool object with 1 or more threads.
+	* \param plan A shared pointer to a FFTPlan object that will be used for convolution.
+	* \warning The same FFTPlan object must be used to construct both this and the HRTF object provided.
+	*/
+	BinauralSound(std::shared_ptr<ISound> sound, std::shared_ptr<HRTF> hrtfs, std::shared_ptr<Source> source, std::shared_ptr<ThreadPool> threadPool, std::shared_ptr<FFTPlan> plan);
+
+	/**
+	* Creates a new BinauralSound. A default FFT plan will be created.
+	* \param sound The sound that will be convolved. Must have only one channel.
+	* \param hrtfs The HRTF set that will be used.
+	* \param source A shared pointer to a Source object that contains the source of the sound.
+	* \param threadPool A shared pointer to a ThreadPool object with 1 or more threads.
+	* \warning To use this constructor no FFTPlan object must have been provided to the hrtfs.
+	*/
+	BinauralSound(std::shared_ptr<ISound> sound, std::shared_ptr<HRTF> hrtfs, std::shared_ptr<Source> source, std::shared_ptr<ThreadPool> threadPool);
+
+	virtual std::shared_ptr<IReader> createReader();
+
+	/**
+	* Retrieves the HRTF set being used.
+	* \return A shared pointer to the current HRTF object being used.
+	*/
+	std::shared_ptr<HRTF> getHRTFs();
+
+	/**
+	* Changes the set of HRTFs used for convolution, it'll only affect newly created readers.
+	* \param hrtfs A shared pointer to the new HRTF object.
+	*/
+	void setHRTFs(std::shared_ptr<HRTF> hrtfs);
+
+	/**
+	* Retrieves the Source object being used.
+	* \return A shared pointer to the current Source object being used.
+	*/
+	std::shared_ptr<Source> getSource();
+
+	/**
+	* Changes the Source object used to change the source position of the sound.
+	* \param source A shared pointer to the new Source object.
+	*/
+	void setSource(std::shared_ptr<Source> source);
+};
+AUD_NAMESPACE_END
+\ No newline at end of file