diff --git a/drain/Algo.cpp b/drain/Algo.cpp
index 2f37b6f..c4314fc 100644
--- a/drain/Algo.cpp
+++ b/drain/Algo.cpp
@@ -21,8 +21,8 @@ drain::Algo::Algo() :
 
 void drain::Algo::init() {
 	// set notification callback :
-	m_input.setCallback(std::bind(&drain::Algo::configurationChangeLocal, this));
-	m_output.setCallback(std::bind(&drain::Algo::configurationChangeLocal, this));
+	m_input.setCallback(std11::bind(&drain::Algo::configurationChangeLocal, this));
+	m_output.setCallback(std11::bind(&drain::Algo::configurationChangeLocal, this));
 	// first configure ==> update the internal parameters
 	configurationChange();
 }
diff --git a/drain/Algo.h b/drain/Algo.h
index 02a323c..2c9fe5e 100644
--- a/drain/Algo.h
+++ b/drain/Algo.h
@@ -13,15 +13,21 @@
 #include <stdint.h>
 #include <audio/format.h>
 #include <audio/channel.h>
-#include <chrono>
-#include <functional>
-#include <memory>
+#if __cplusplus >= 201103L
+	#include <chrono>
+	#include <functional>
+	#include <memory>
+#else
+	#include <etk/chrono.h>
+	#include <etk/functional.h>
+	#include <etk/memory.h>
+#endif
 #include "AutoLogInOut.h"
 #include "IOFormatInterface.h"
 #include "debug.h"
 
 namespace drain{
-	class Algo : public std::enable_shared_from_this<Algo> {
+	class Algo : public std11::enable_shared_from_this<Algo> {
 		private:
 			std::string m_name;
 		public:
@@ -110,7 +116,7 @@ namespace drain{
 			 * @return true The process is done corectly
 			 * @return false An error occured
 			 */
-			virtual bool process(std::chrono::system_clock::time_point& _time,
+			virtual bool process(std11::chrono::system_clock::time_point& _time,
 			                     void* _input,
 			                     size_t _inputNbChunk,
 			                     void*& _output,
@@ -142,19 +148,19 @@ namespace drain{
 				return m_supportedFormat;
 			};
 		protected: // note when nothing ==> support all type
-			std::vector<std::vector<audio::channel>> m_supportedMap;
+			std::vector<std::vector<audio::channel> > m_supportedMap;
 		public:
-			virtual std::vector<std::vector<audio::channel>> getMapSupportedInput() {
+			virtual std::vector<std::vector<audio::channel> > getMapSupportedInput() {
 				if (m_output.getConfigured() == true) {
-					std::vector<std::vector<audio::channel>> out;
+					std::vector<std::vector<audio::channel> > out;
 					out.push_back(m_output.getMap());
 					return out;
 				}
 				return m_supportedMap;
 			};
-			virtual std::vector<std::vector<audio::channel>> getMapSupportedOutput() {
+			virtual std::vector<std::vector<audio::channel> > getMapSupportedOutput() {
 				if (m_input.getConfigured() == true) {
-					std::vector<std::vector<audio::channel>> out;
+					std::vector<std::vector<audio::channel> > out;
 					out.push_back(m_input.getMap());
 					return out;
 				}
diff --git a/drain/ChannelReorder.cpp b/drain/ChannelReorder.cpp
index 484bef1..51b2d28 100644
--- a/drain/ChannelReorder.cpp
+++ b/drain/ChannelReorder.cpp
@@ -23,8 +23,8 @@ void drain::ChannelReorder::init() {
 	m_type = "ChannelReorder";
 }
 
-std::shared_ptr<drain::ChannelReorder> drain::ChannelReorder::create() {
-	std::shared_ptr<drain::ChannelReorder> tmp(new drain::ChannelReorder());
+std11::shared_ptr<drain::ChannelReorder> drain::ChannelReorder::create() {
+	std11::shared_ptr<drain::ChannelReorder> tmp(new drain::ChannelReorder());
 	tmp->init();
 	return tmp;
 }
@@ -49,7 +49,7 @@ void drain::ChannelReorder::configurationChange() {
 }
 
 
-bool drain::ChannelReorder::process(std::chrono::system_clock::time_point& _time,
+bool drain::ChannelReorder::process(std11::chrono::system_clock::time_point& _time,
                                               void* _input,
                                               size_t _inputNbChunk,
                                               void*& _output,
diff --git a/drain/ChannelReorder.h b/drain/ChannelReorder.h
index dac3a60..b69547d 100644
--- a/drain/ChannelReorder.h
+++ b/drain/ChannelReorder.h
@@ -18,7 +18,7 @@ namespace drain{
 			ChannelReorder();
 			void init();
 		public:
-			static std::shared_ptr<ChannelReorder> create();
+			static std11::shared_ptr<ChannelReorder> create();
 			/**
 			 * @brief Destructor
 			 */
@@ -26,7 +26,7 @@ namespace drain{
 		protected:
 			virtual void configurationChange();
 		public:
-			virtual bool process(std::chrono::system_clock::time_point& _time,
+			virtual bool process(std11::chrono::system_clock::time_point& _time,
 			                     void* _input,
 			                     size_t _inputNbChunk,
 			                     void*& _output,
diff --git a/drain/EndPointCallback.cpp b/drain/EndPointCallback.cpp
index 800f0cb..368b06d 100644
--- a/drain/EndPointCallback.cpp
+++ b/drain/EndPointCallback.cpp
@@ -27,14 +27,14 @@ void drain::EndPointCallback::init(recordFunction _callback) {
 	m_type = "EndPointCallback";
 }
 
-std::shared_ptr<drain::EndPointCallback> drain::EndPointCallback::create(playbackFunction _callback) {
-	std::shared_ptr<drain::EndPointCallback> tmp(new drain::EndPointCallback());
+std11::shared_ptr<drain::EndPointCallback> drain::EndPointCallback::create(playbackFunction _callback) {
+	std11::shared_ptr<drain::EndPointCallback> tmp(new drain::EndPointCallback());
 	tmp->init(_callback);
 	return tmp;
 }
 
-std::shared_ptr<drain::EndPointCallback> drain::EndPointCallback::create(recordFunction _callback) {
-	std::shared_ptr<drain::EndPointCallback> tmp(new drain::EndPointCallback());
+std11::shared_ptr<drain::EndPointCallback> drain::EndPointCallback::create(recordFunction _callback) {
+	std11::shared_ptr<drain::EndPointCallback> tmp(new drain::EndPointCallback());
 	tmp->init(_callback);
 	return tmp;
 }
@@ -46,7 +46,7 @@ void drain::EndPointCallback::configurationChange() {
 }
 
 
-bool drain::EndPointCallback::process(std::chrono::system_clock::time_point& _time,
+bool drain::EndPointCallback::process(std11::chrono::system_clock::time_point& _time,
                                       void* _input,
                                       size_t _inputNbChunk,
                                       void*& _output,
diff --git a/drain/EndPointCallback.h b/drain/EndPointCallback.h
index c2bdc8e..ad3b984 100644
--- a/drain/EndPointCallback.h
+++ b/drain/EndPointCallback.h
@@ -8,22 +8,26 @@
 #define __AIRT_ALGO_END_POINT_CALLBACK_H__
 
 #include <drain/EndPoint.h>
-#include <functional>
+#if __cplusplus >= 201103L
+	#include <functional>
+#else
+	#include <etk/functional.h>
+#endif
 
 
 namespace drain {
-	typedef std::function<void (void* _data,
-	                            const std::chrono::system_clock::time_point& _playTime,
-	                            size_t _nbChunk,
-	                            enum audio::format _format,
-	                            uint32_t _frequency,
-	                            const std::vector<audio::channel>& _map)> playbackFunction;
-	typedef std::function<void (const void* _data,
-	                            const std::chrono::system_clock::time_point& _readTime,
-	                            size_t _nbChunk,
-	                            enum audio::format _format,
-	                            uint32_t _frequency,
-	                            const std::vector<audio::channel>& _map)> recordFunction;
+	typedef std11::function<void (void* _data,
+	                              const std11::chrono::system_clock::time_point& _playTime,
+	                              size_t _nbChunk,
+	                              enum audio::format _format,
+	                              uint32_t _frequency,
+	                              const std::vector<audio::channel>& _map)> playbackFunction;
+	typedef std11::function<void (const void* _data,
+	                              const std11::chrono::system_clock::time_point& _readTime,
+	                              size_t _nbChunk,
+	                              enum audio::format _format,
+	                              uint32_t _frequency,
+	                              const std::vector<audio::channel>& _map)> recordFunction;
 	class EndPointCallback : public EndPoint {
 		private:
 			playbackFunction m_outputFunction;
@@ -36,14 +40,14 @@ namespace drain {
 			void init(playbackFunction _callback);
 			void init(recordFunction _callback);
 		public:
-			static std::shared_ptr<EndPointCallback> create(playbackFunction _callback);
-			static std::shared_ptr<EndPointCallback> create(recordFunction _callback);
+			static std11::shared_ptr<EndPointCallback> create(playbackFunction _callback);
+			static std11::shared_ptr<EndPointCallback> create(recordFunction _callback);
 			/**
 			 * @brief Destructor
 			 */
 			virtual ~EndPointCallback() {};
 			virtual void configurationChange();
-			virtual bool process(std::chrono::system_clock::time_point& _time,
+			virtual bool process(std11::chrono::system_clock::time_point& _time,
 			                     void* _input,
 			                     size_t _inputNbChunk,
 			                     void*& _output,
diff --git a/drain/EndPointRead.cpp b/drain/EndPointRead.cpp
index 55f0b14..5b94ad1 100644
--- a/drain/EndPointRead.cpp
+++ b/drain/EndPointRead.cpp
@@ -20,8 +20,8 @@ void drain::EndPointRead::init() {
 	m_type = "EndPointRead";
 }
 
-std::shared_ptr<drain::EndPointRead> drain::EndPointRead::create() {
-	std::shared_ptr<drain::EndPointRead> tmp(new drain::EndPointRead());
+std11::shared_ptr<drain::EndPointRead> drain::EndPointRead::create() {
+	std11::shared_ptr<drain::EndPointRead> tmp(new drain::EndPointRead());
 	tmp->init();
 	return tmp;
 }
@@ -32,7 +32,7 @@ void drain::EndPointRead::configurationChange() {
 }
 
 
-bool drain::EndPointRead::process(std::chrono::system_clock::time_point& _time,
+bool drain::EndPointRead::process(std11::chrono::system_clock::time_point& _time,
                                             void* _input,
                                             size_t _inputNbChunk,
                                             void*& _output,
diff --git a/drain/EndPointRead.h b/drain/EndPointRead.h
index a3aeac1..c319f3c 100644
--- a/drain/EndPointRead.h
+++ b/drain/EndPointRead.h
@@ -18,13 +18,13 @@ namespace drain{
 			EndPointRead();
 			void init();
 		public:
-			static std::shared_ptr<EndPointRead> create();
+			static std11::shared_ptr<EndPointRead> create();
 			/**
 			 * @brief Destructor
 			 */
 			virtual ~EndPointRead() {};
 			virtual void configurationChange();
-			virtual bool process(std::chrono::system_clock::time_point& _time,
+			virtual bool process(std11::chrono::system_clock::time_point& _time,
 			                     void* _input,
 			                     size_t _inputNbChunk,
 			                     void*& _output,
diff --git a/drain/EndPointWrite.cpp b/drain/EndPointWrite.cpp
index 2809033..887fb26 100644
--- a/drain/EndPointWrite.cpp
+++ b/drain/EndPointWrite.cpp
@@ -20,8 +20,8 @@ void drain::EndPointWrite::init() {
 	m_type = "EndPoint";
 }
 
-std::shared_ptr<drain::EndPointWrite> drain::EndPointWrite::create() {
-	std::shared_ptr<drain::EndPointWrite> tmp(new drain::EndPointWrite());
+std11::shared_ptr<drain::EndPointWrite> drain::EndPointWrite::create() {
+	std11::shared_ptr<drain::EndPointWrite> tmp(new drain::EndPointWrite());
 	tmp->init();
 	return tmp;
 }
@@ -32,7 +32,7 @@ void drain::EndPointWrite::configurationChange() {
 }
 
 
-bool drain::EndPointWrite::process(std::chrono::system_clock::time_point& _time,
+bool drain::EndPointWrite::process(std11::chrono::system_clock::time_point& _time,
                                    void* _input,
                                    size_t _inputNbChunk,
                                    void*& _output,
@@ -50,7 +50,7 @@ bool drain::EndPointWrite::process(std::chrono::system_clock::time_point& _time,
 	// set output pointer:
 	_outputNbChunk = m_outputData.size()/(m_formatSize*m_output.getMap().size());
 	_output = &m_outputData[0];
-	std::unique_lock<std::mutex> lock(m_mutex);
+	std11::unique_lock<std11::mutex> lock(m_mutex);
 	// check if data in the tmpBuffer
 	if (m_tmpData.size() == 0) {
 		DRAIN_WARNING("No data in the user buffer (write null data ... " << _outputNbChunk << " chunks)");
@@ -71,7 +71,7 @@ bool drain::EndPointWrite::process(std::chrono::system_clock::time_point& _time,
 }
 
 void drain::EndPointWrite::write(const void* _value, size_t _nbChunk) {
-	std::unique_lock<std::mutex> lock(m_mutex);
+	std11::unique_lock<std11::mutex> lock(m_mutex);
 	DRAIN_INFO("[ASYNC] Write data : " << _nbChunk << " chunks"
 	              << " ==> " << _nbChunk*m_output.getMap().size() << " samples"
 	              << " formatSize=" << int32_t(m_formatSize)
diff --git a/drain/EndPointWrite.h b/drain/EndPointWrite.h
index 7b54576..aaa0f64 100644
--- a/drain/EndPointWrite.h
+++ b/drain/EndPointWrite.h
@@ -8,20 +8,25 @@
 #define __AIRT_ALGO_ALGO_END_POINT_WRITE_H__
 
 #include <drain/EndPoint.h>
-#include <mutex>
-#include <functional>
+#if __cplusplus >= 201103L
+	#include <functional>
+	#include <mutex>
+#else
+	#include <etk/functional.h>
+	#include <etk/mutex.h>
+#endif
 
 namespace drain{
-	typedef std::function<void (const std::chrono::system_clock::time_point& _time,
-	                            size_t _nbChunk,
-	                            enum audio::format _format,
-	                            uint32_t _frequency,
-	                            const std::vector<audio::channel>& _map)> playbackFunctionWrite;
+	typedef std11::function<void (const std11::chrono::system_clock::time_point& _time,
+	                              size_t _nbChunk,
+	                              enum audio::format _format,
+	                              uint32_t _frequency,
+	                              const std::vector<audio::channel>& _map)> playbackFunctionWrite;
 	class EndPointWrite : public EndPoint {
 		private:
 			std::vector<int8_t> m_tmpData;
 			playbackFunctionWrite m_function;
-			std::mutex m_mutex;
+			std11::mutex m_mutex;
 		protected:
 			/**
 			 * @brief Constructor
@@ -29,13 +34,13 @@ namespace drain{
 			EndPointWrite();
 			void init();
 		public:
-			static std::shared_ptr<EndPointWrite> create();
+			static std11::shared_ptr<EndPointWrite> create();
 			/**
 			 * @brief Destructor
 			 */
 			virtual ~EndPointWrite() {};
 			virtual void configurationChange();
-			virtual bool process(std::chrono::system_clock::time_point& _time,
+			virtual bool process(std11::chrono::system_clock::time_point& _time,
 			                     void* _input,
 			                     size_t _inputNbChunk,
 			                     void*& _output,
diff --git a/drain/FormatUpdate.cpp b/drain/FormatUpdate.cpp
index 5f90673..3413c49 100644
--- a/drain/FormatUpdate.cpp
+++ b/drain/FormatUpdate.cpp
@@ -136,8 +136,8 @@ void drain::FormatUpdate::init() {
 	m_type = "FormatUpdate";
 }
 
-std::shared_ptr<drain::FormatUpdate> drain::FormatUpdate::create() {
-	std::shared_ptr<drain::FormatUpdate> tmp(new drain::FormatUpdate());
+std11::shared_ptr<drain::FormatUpdate> drain::FormatUpdate::create() {
+	std11::shared_ptr<drain::FormatUpdate> tmp(new drain::FormatUpdate());
 	tmp->init();
 	return tmp;
 }
@@ -243,7 +243,7 @@ void drain::FormatUpdate::configurationChange() {
 }
 
 
-bool drain::FormatUpdate::process(std::chrono::system_clock::time_point& _time,
+bool drain::FormatUpdate::process(std11::chrono::system_clock::time_point& _time,
                                   void* _input,
                                   size_t _inputNbChunk,
                                   void*& _output,
diff --git a/drain/FormatUpdate.h b/drain/FormatUpdate.h
index 81dbe8a..2db2ed3 100644
--- a/drain/FormatUpdate.h
+++ b/drain/FormatUpdate.h
@@ -17,7 +17,7 @@ namespace drain {
 			FormatUpdate();
 			void init();
 		public:
-			static std::shared_ptr<FormatUpdate> create();
+			static std11::shared_ptr<FormatUpdate> create();
 			/**
 			 * @brief Destructor
 			 */
@@ -25,7 +25,7 @@ namespace drain {
 		protected:
 			virtual void configurationChange();
 		public:
-			virtual bool process(std::chrono::system_clock::time_point& _time,
+			virtual bool process(std11::chrono::system_clock::time_point& _time,
 			                     void* _input,
 			                     size_t _inputNbChunk,
 			                     void*& _output,
diff --git a/drain/IOFormatInterface.cpp b/drain/IOFormatInterface.cpp
index 2e173d4..596f837 100644
--- a/drain/IOFormatInterface.cpp
+++ b/drain/IOFormatInterface.cpp
@@ -113,7 +113,6 @@ void drain::IOFormatInterface::configurationChange() {
 		m_ioChangeFunctor();
 	}
 }
-
-void drain::IOFormatInterface::setCallback(const std::function<void()>& _functor) {
+void drain::IOFormatInterface::setCallback(const std11::function<void()>& _functor) {
 	m_ioChangeFunctor = _functor;
 }
diff --git a/drain/IOFormatInterface.h b/drain/IOFormatInterface.h
index 5c02e6e..f716089 100644
--- a/drain/IOFormatInterface.h
+++ b/drain/IOFormatInterface.h
@@ -13,9 +13,15 @@
 #include <stdint.h>
 #include <audio/format.h>
 #include <audio/channel.h>
-#include <chrono>
-#include <functional>
-#include <memory>
+#if __cplusplus >= 201103L
+	#include <chrono>
+	#include <functional>
+	#include <memory>
+#else
+	#include <etk/chrono.h>
+	#include <etk/functional.h>
+	#include <etk/memory.h>
+#endif
 #include "AutoLogInOut.h"
 #include "debug.h"
 
@@ -70,14 +76,14 @@ namespace drain{
 			 */
 			void setFrequency(float _value);
 		protected:
-			std::function<void()> m_ioChangeFunctor; //!< function pointer on the upper class
+			std11::function<void()> m_ioChangeFunctor; //!< function pointer on the upper class
 			void configurationChange();
 		public:
 			/**
 			 * @brief Set the callback function to be notify when the arameter change.
 			 * @param[in] _functor Function to call.
 			 */
-			void setCallback(const std::function<void()>& _functor);
+			void setCallback(const std11::function<void()>& _functor);
 	};
 	std::ostream& operator <<(std::ostream& _os, const IOFormatInterface& _obj);
 }
diff --git a/drain/Process.cpp b/drain/Process.cpp
index f337ec5..a93ec96 100644
--- a/drain/Process.cpp
+++ b/drain/Process.cpp
@@ -15,7 +15,6 @@
 #include <drain/ChannelReorder.h>
 #include <drain/FormatUpdate.h>
 #include <drain/Resampler.h>
-#include <chrono>
 
 #undef __class__
 #define __class__ "Process"
@@ -25,12 +24,12 @@ drain::Process::Process() :
 	m_data.clear();
 }
 drain::Process::~Process() {
-	for (auto &it : m_listAlgo) {
-		it.reset();
+	for (size_t iii=0; iii<m_listAlgo.size(); ++iii) {
+		m_listAlgo[iii].reset();
 	}
 }
 
-bool drain::Process::push(std::chrono::system_clock::time_point& _time,
+bool drain::Process::push(std11::chrono::system_clock::time_point& _time,
                           void* _data,
                           size_t _nbChunk) {
 	void* out = nullptr;
@@ -40,7 +39,7 @@ bool drain::Process::push(std::chrono::system_clock::time_point& _time,
 	return true;
 }
 
-bool drain::Process::pull(std::chrono::system_clock::time_point& _time,
+bool drain::Process::pull(std11::chrono::system_clock::time_point& _time,
                           void* _data,
                           size_t _nbChunk,
                           size_t _chunkSize) {
@@ -89,7 +88,7 @@ bool drain::Process::pull(std::chrono::system_clock::time_point& _time,
 }
 
 
-bool drain::Process::process(std::chrono::system_clock::time_point& _time,
+bool drain::Process::process(std11::chrono::system_clock::time_point& _time,
                                 void* _inData,
                                 size_t _inNbChunk,
                                 void*& _outData,
@@ -112,12 +111,12 @@ bool drain::Process::process(std::chrono::system_clock::time_point& _time,
 	return true;
 }
 
-void drain::Process::pushBack(const std::shared_ptr<drain::Algo>& _algo) {
+void drain::Process::pushBack(const std11::shared_ptr<drain::Algo>& _algo) {
 	removeAlgoDynamic();
 	m_listAlgo.push_back(_algo);
 }
 
-void drain::Process::pushFront(const std::shared_ptr<drain::Algo>& _algo) {
+void drain::Process::pushFront(const std11::shared_ptr<drain::Algo>& _algo) {
 	removeAlgoDynamic();
 	m_listAlgo.insert(m_listAlgo.begin(), _algo);
 }
@@ -132,10 +131,10 @@ template<typename T> std::vector<T> getUnion(const std::vector<T>& _out, const s
 		// next is ok for all format
 	} else {
 		// must check all values
-		for (auto &itOut : _out) {
-			for (auto &itIn : _in) {
-				if (itOut == itIn) {
-					out.push_back(itOut);
+		for (size_t ooo=0; ooo<_out.size(); ++ooo) {
+			for (size_t iii=0; iii<_in.size(); ++iii) {
+				if (_out[ooo] == _in[iii]) {
+					out.push_back(_out[ooo]);
 				}
 			}
 		}
@@ -146,23 +145,23 @@ template<typename T> std::vector<T> getUnion(const std::vector<T>& _out, const s
 
 void drain::Process::displayAlgo() {
 	DRAIN_DEBUG("    Input : " << m_inputConfig);
-	for (auto &it : m_listAlgo) {
-		DRAIN_DEBUG("    [" << it->getType() << "] '" << it->getName() << "'");
-		if (it->getInputFormat().getConfigured() == true) {
-			DRAIN_DEBUG("        Input : " << it->getInputFormat());
+	for (size_t iii=0; iii<m_listAlgo.size(); ++iii) {
+		DRAIN_DEBUG("    [" << m_listAlgo[iii]->getType() << "] '" << m_listAlgo[iii]->getName() << "'");
+		if (m_listAlgo[iii]->getInputFormat().getConfigured() == true) {
+			DRAIN_DEBUG("        Input : " << m_listAlgo[iii]->getInputFormat());
 		} else {
 			DRAIN_DEBUG("        Input : Not configured");
-			DRAIN_DEBUG("            format : " << it->getFormatSupportedInput());
-			DRAIN_DEBUG("            frequency : " << it->getFrequencySupportedInput());
-			DRAIN_DEBUG("            map : " << it->getMapSupportedInput());
+			DRAIN_DEBUG("            format : " << m_listAlgo[iii]->getFormatSupportedInput());
+			DRAIN_DEBUG("            frequency : " << m_listAlgo[iii]->getFrequencySupportedInput());
+			DRAIN_DEBUG("            map : " << m_listAlgo[iii]->getMapSupportedInput());
 		}
-		if (it->getOutputFormat().getConfigured() == true) {
-			DRAIN_DEBUG("        Output: " << it->getOutputFormat());
+		if (m_listAlgo[iii]->getOutputFormat().getConfigured() == true) {
+			DRAIN_DEBUG("        Output: " << m_listAlgo[iii]->getOutputFormat());
 		} else {
 			DRAIN_DEBUG("        Output : Not configured");
-			DRAIN_DEBUG("            format : " << it->getFormatSupportedOutput());
-			DRAIN_DEBUG("            frequency : " << it->getFrequencySupportedOutput());
-			DRAIN_DEBUG("            map : " << it->getMapSupportedOutput());
+			DRAIN_DEBUG("            format : " << m_listAlgo[iii]->getFormatSupportedOutput());
+			DRAIN_DEBUG("            frequency : " << m_listAlgo[iii]->getFrequencySupportedOutput());
+			DRAIN_DEBUG("            map : " << m_listAlgo[iii]->getMapSupportedOutput());
 		}
 	}
 	DRAIN_DEBUG("    Output : " << m_outputConfig);
@@ -200,8 +199,8 @@ void drain::Process::updateAlgo(size_t _position) {
 		DRAIN_DEBUG("        freq union :" << freq);
 		
 		// step 2 : Check map:
-		std::vector<std::vector<audio::channel>> mapOut;
-		std::vector<std::vector<audio::channel>> mapIn;
+		std::vector<std::vector<audio::channel> > mapOut;
+		std::vector<std::vector<audio::channel> > mapIn;
 		if (_position == 0) {
 			mapOut.push_back(m_inputConfig.getMap());
 		} else {
@@ -212,7 +211,7 @@ void drain::Process::updateAlgo(size_t _position) {
 		} else {
 			mapIn = m_listAlgo[_position]->getMapSupportedInput();
 		}
-		std::vector<std::vector<audio::channel>> map = getUnion<std::vector<audio::channel>>(mapOut, mapIn);
+		std::vector<std::vector<audio::channel> > map = getUnion<std::vector<audio::channel> >(mapOut, mapIn);
 		DRAIN_VERBOSE("        map out   :" << mapOut);
 		DRAIN_VERBOSE("        map in    :" << mapIn);
 		DRAIN_DEBUG("        map union :" << map);
@@ -343,7 +342,7 @@ void drain::Process::updateAlgo(size_t _position) {
 			if (    out.getFormat() != audio::format_int16
 			     /* && out.getFormat() != format_float */) {
 				// need add a format Updater
-				std::shared_ptr<drain::FormatUpdate> algo = drain::FormatUpdate::create();
+				std11::shared_ptr<drain::FormatUpdate> algo = drain::FormatUpdate::create();
 				algo->setTemporary();
 				algo->setInputFormat(out);
 				out.setFormat(audio::format_int16);
@@ -353,7 +352,7 @@ void drain::Process::updateAlgo(size_t _position) {
 				_position++;
 			}
 			// need add a resampler
-			std::shared_ptr<drain::Resampler> algo = drain::Resampler::create();
+			std11::shared_ptr<drain::Resampler> algo = drain::Resampler::create();
 			algo->setTemporary();
 			algo->setInputFormat(out);
 			out.setFrequency(in.getFrequency());
@@ -365,7 +364,7 @@ void drain::Process::updateAlgo(size_t _position) {
 		}
 		if (out.getMap() != in.getMap()) {
 			// need add a channel Reorder
-			std::shared_ptr<drain::ChannelReorder> algo = drain::ChannelReorder::create();
+			std11::shared_ptr<drain::ChannelReorder> algo = drain::ChannelReorder::create();
 			algo->setTemporary();
 			algo->setInputFormat(out);
 			out.setMap(in.getMap());
@@ -376,7 +375,7 @@ void drain::Process::updateAlgo(size_t _position) {
 		}
 		if (out.getFormat() != in.getFormat()) {
 			// need add a format Updater
-			std::shared_ptr<drain::FormatUpdate> algo = drain::FormatUpdate::create();
+			std11::shared_ptr<drain::FormatUpdate> algo = drain::FormatUpdate::create();
 			algo->setTemporary();
 			algo->setInputFormat(out);
 			out.setFormat(in.getFormat());
diff --git a/drain/Process.h b/drain/Process.h
index 7b76417..5114c4f 100644
--- a/drain/Process.h
+++ b/drain/Process.h
@@ -14,8 +14,13 @@
 #include <audio/format.h>
 #include <audio/channel.h>
 #include <drain/Algo.h>
-#include <chrono>
-#include <memory>
+#if __cplusplus >= 201103L
+	#include <memory>
+	#include <chrono>
+#else
+	#include <etk/chrono.h>
+	#include <etk/memory.h>
+#endif
 
 namespace drain{
 	class Process {
@@ -33,7 +38,7 @@ namespace drain{
 			 * @return true The procress is done corectly.
 			 * @return false An error occured.
 			 */
-			bool push(std::chrono::system_clock::time_point& _time,
+			bool push(std11::chrono::system_clock::time_point& _time,
 			          void* _data,
 			          size_t _nbChunk);
 			/**
@@ -45,7 +50,7 @@ namespace drain{
 			 * @return true The procress is done corectly.
 			 * @return false An error occured.
 			 */
-			bool pull(std::chrono::system_clock::time_point& _time,
+			bool pull(std11::chrono::system_clock::time_point& _time,
 			          void* _data,
 			          size_t _nbChunk,
 			          size_t _chunkSize);
@@ -59,7 +64,7 @@ namespace drain{
 			 * @return true The procress is done corectly.
 			 * @return false An error occured.
 			 */
-			bool process(std::chrono::system_clock::time_point& _time,
+			bool process(std11::chrono::system_clock::time_point& _time,
 			             void* _inData,
 			             size_t _inNbChunk,
 			             void*& _outData,
@@ -68,7 +73,7 @@ namespace drain{
 			             size_t _inNbChunk,
 			             void*& _outData,
 			             size_t& _outNbChunk) {
-				std::chrono::system_clock::time_point time;
+				std11::chrono::system_clock::time_point time;
 				return process(time, _inData, _inNbChunk, _outData, _outNbChunk);
 			}
 			bool processIn(void* _inData,
@@ -94,10 +99,10 @@ namespace drain{
 				m_outputConfig = _interface;
 			}
 		protected:
-			std::vector<std::shared_ptr<drain::Algo> > m_listAlgo;
+			std::vector<std11::shared_ptr<drain::Algo> > m_listAlgo;
 		public:
-			void pushBack(const std::shared_ptr<drain::Algo>& _algo);
-			void pushFront(const std::shared_ptr<drain::Algo>& _algo);
+			void pushBack(const std11::shared_ptr<drain::Algo>& _algo);
+			void pushFront(const std11::shared_ptr<drain::Algo>& _algo);
 			void clear() {
 				m_isConfigured = false;
 				m_listAlgo.clear();
@@ -105,16 +110,41 @@ namespace drain{
 			size_t size() {
 				return m_listAlgo.size();
 			}
-			std::vector<std::shared_ptr<drain::Algo> >::iterator begin() {
+			std::vector<std11::shared_ptr<drain::Algo> >::iterator begin() {
 				return m_listAlgo.begin();
 			}
-			std::vector<std::shared_ptr<drain::Algo> >::iterator end() {
+			std::vector<std11::shared_ptr<drain::Algo> >::iterator end() {
 				return m_listAlgo.end();
 			}
 			
+			template<typename T> std11::shared_ptr<T> get(const std::string& _name) {
+				for (size_t iii=0; iii<m_listAlgo.size(); ++iii) {
+					if (m_listAlgo[iii] == nullptr) {
+						continue;
+					}
+					if (m_listAlgo[iii]->getName() == _name) {
+						return std11::dynamic_pointer_cast<T>(m_listAlgo[iii]);
+					}
+				}
+				return std11::shared_ptr<T>();
+			}
+			template<typename T> std11::shared_ptr<const T> get(const std::string& _name) const {
+				for (size_t iii=0; iii<m_listAlgo.size(); ++iii) {
+					if (m_listAlgo[iii] == nullptr) {
+						continue;
+					}
+					if (m_listAlgo[iii]->getName() == _name) {
+						return std11::dynamic_pointer_cast<T>(m_listAlgo[iii]);
+					}
+				}
+				return std11::shared_ptr<const T>();
+			}
+			template<typename T> std11::shared_ptr<T> get(int32_t _id) {
+				return std11::dynamic_pointer_cast<T>(m_listAlgo[_id]);
+			}
 			template<typename T> void removeIfFirst() {
 				if (m_listAlgo.size() > 0) {
-					std::shared_ptr<T> algoEP = std::dynamic_pointer_cast<T>(m_listAlgo[0]);
+					std11::shared_ptr<T> algoEP = get<T>(0);
 					if (algoEP != nullptr) {
 						m_listAlgo.erase(m_listAlgo.begin());
 					}
@@ -122,40 +152,15 @@ namespace drain{
 			}
 			template<typename T> void removeIfLast() {
 				if (m_listAlgo.size() > 0) {
-					std::shared_ptr<T> algoEP = std::dynamic_pointer_cast<T>(m_listAlgo[m_listAlgo.size()-1]);
+					std11::shared_ptr<T> algoEP = get<T>(m_listAlgo.size()-1);
 					if (algoEP != nullptr) {
 						m_listAlgo.erase(m_listAlgo.begin()+m_listAlgo.size()-1);
 					}
 				}
 			}
-			template<typename T> std::shared_ptr<T> get(int32_t _id) {
-				return std::dynamic_pointer_cast<T>(m_listAlgo[_id]);
-			}
-			template<typename T> std::shared_ptr<T> get(const std::string& _name) {
-				for (auto &it : m_listAlgo) {
-					if (it == nullptr) {
-						continue;
-					}
-					if (it->getName() == _name) {
-						return std::dynamic_pointer_cast<T>(it);
-					}
-				}
-				return nullptr;
-			}
-			template<typename T> std::shared_ptr<const T> get(const std::string& _name) const {
-				for (auto &it : m_listAlgo) {
-					if (it == nullptr) {
-						continue;
-					}
-					if (it->getName() == _name) {
-						return std::dynamic_pointer_cast<T>(it);
-					}
-				}
-				return nullptr;
-			}
 			template<typename T> bool hasType() {
-				for (auto &it : m_listAlgo) {
-					std::shared_ptr<T> tmp = std::dynamic_pointer_cast<T>(it);
+				for (size_t iii=0; iii<m_listAlgo.size(); ++iii) {
+					std11::shared_ptr<T> tmp = std11::dynamic_pointer_cast<T>(m_listAlgo[iii]);
 					if (tmp != nullptr) {
 						return true;
 					}
diff --git a/drain/Resampler.cpp b/drain/Resampler.cpp
index 944f477..215d625 100644
--- a/drain/Resampler.cpp
+++ b/drain/Resampler.cpp
@@ -26,8 +26,8 @@ void drain::Resampler::init() {
 	m_supportedFormat.push_back(audio::format_int16);
 }
 
-std::shared_ptr<drain::Resampler> drain::Resampler::create() {
-	std::shared_ptr<drain::Resampler> tmp(new drain::Resampler());
+std11::shared_ptr<drain::Resampler> drain::Resampler::create() {
+	std11::shared_ptr<drain::Resampler> tmp(new drain::Resampler());
 	tmp->init();
 	return tmp;
 }
@@ -84,8 +84,8 @@ void drain::Resampler::configurationChange() {
 }
 
 namespace std {
-	static std::ostream& operator <<(std::ostream& _os, const std::chrono::system_clock::time_point& _obj) {
-		std::chrono::nanoseconds ns = std::chrono::duration_cast<std::chrono::nanoseconds>(_obj.time_since_epoch());
+	static std::ostream& operator <<(std::ostream& _os, const std11::chrono::system_clock::time_point& _obj) {
+		std11::chrono::nanoseconds ns = std11::chrono::duration_cast<std11::chrono::nanoseconds>(_obj.time_since_epoch());
 		int64_t totalSecond = ns.count()/1000000000;
 		int64_t millisecond = (ns.count()%1000000000)/1000000;
 		int64_t microsecond = (ns.count()%1000000)/1000;
@@ -102,7 +102,7 @@ namespace std {
 	}
 }
 
-bool drain::Resampler::process(std::chrono::system_clock::time_point& _time,
+bool drain::Resampler::process(std11::chrono::system_clock::time_point& _time,
                                void* _input,
                                size_t _inputNbChunk,
                                void*& _output,
@@ -126,7 +126,7 @@ bool drain::Resampler::process(std::chrono::system_clock::time_point& _time,
 	DRAIN_VERBOSE("Resampler correct timestamp : " << _time << " ==> " << (_time - m_residualTimeInResampler));
 	_time -= m_residualTimeInResampler;
 	
-	std::chrono::nanoseconds inTime((int64_t(_inputNbChunk)*int64_t(1000000000)) / int64_t(m_input.getFrequency()));
+	std11::chrono::nanoseconds inTime((int64_t(_inputNbChunk)*int64_t(1000000000)) / int64_t(m_input.getFrequency()));
 	m_residualTimeInResampler += inTime;
 	#ifdef HAVE_SPEEX_DSP_RESAMPLE
 		float nbInputTime = float(_inputNbChunk)/m_input.getFrequency();
@@ -165,7 +165,7 @@ bool drain::Resampler::process(std::chrono::system_clock::time_point& _time,
 		}
 		_outputNbChunk = nbChunkOutput;
 		DRAIN_VERBOSE("                               process chunk=" << nbChunkInput << " out=" << nbChunkOutput);
-		std::chrono::nanoseconds outTime((int64_t(_outputNbChunk)*int64_t(1000000000)) / int64_t(m_output.getFrequency()));
+		std11::chrono::nanoseconds outTime((int64_t(_outputNbChunk)*int64_t(1000000000)) / int64_t(m_output.getFrequency()));
 		// correct time :
 		m_residualTimeInResampler -= outTime;
 		/*
diff --git a/drain/Resampler.h b/drain/Resampler.h
index a297c1d..d21d254 100644
--- a/drain/Resampler.h
+++ b/drain/Resampler.h
@@ -11,7 +11,11 @@
 #ifdef HAVE_SPEEX_DSP_RESAMPLE
 	#include <speex/speex_resampler.h>
 #endif
-#include <memory>
+#if __cplusplus >= 201103L
+	#include <memory>
+#else
+	#include <etk/memory.h>
+#endif
 
 namespace drain {
 	// TODO: Manage change timestamp when pull mode
@@ -30,7 +34,7 @@ namespace drain {
 			Resampler();
 			void init();
 		public:
-			static std::shared_ptr<Resampler> create();
+			static std11::shared_ptr<Resampler> create();
 			/**
 			 * @brief Destructor
 			 */
@@ -38,13 +42,13 @@ namespace drain {
 		protected:
 			virtual void configurationChange();
 		public:
-			virtual bool process(std::chrono::system_clock::time_point& _time,
+			virtual bool process(std11::chrono::system_clock::time_point& _time,
 			                     void* _input,
 			                     size_t _inputNbChunk,
 			                     void*& _output,
 			                     size_t& _outputNbChunk);
 		private:
-			std::chrono::nanoseconds m_residualTimeInResampler; //!< the time of data locked in the resampler ...
+			std11::chrono::nanoseconds m_residualTimeInResampler; //!< the time of data locked in the resampler ...
 	};
 };
 
diff --git a/drain/Volume.cpp b/drain/Volume.cpp
index 7002969..4261d59 100644
--- a/drain/Volume.cpp
+++ b/drain/Volume.cpp
@@ -25,8 +25,8 @@ void drain::Volume::init() {
 	m_supportedFormat.push_back(audio::format_int16_on_int32);
 }
 
-std::shared_ptr<drain::Volume> drain::Volume::create() {
-	std::shared_ptr<drain::Volume> tmp(new drain::Volume());
+std11::shared_ptr<drain::Volume> drain::Volume::create() {
+	std11::shared_ptr<drain::Volume> tmp(new drain::Volume());
 	tmp->init();
 	return tmp;
 }
@@ -155,15 +155,15 @@ void drain::Volume::configurationChange() {
 void drain::Volume::volumeChange() {
 	//m_volumeAppli = 20 * log(m_volumedB);
 	float volumedB = 0.0f;
-	for (auto &it : m_volumeList) {
-		if (it == nullptr) {
+	for (size_t iii=0; iii<m_volumeList.size(); ++iii) {
+		if (m_volumeList[iii] == nullptr) {
 			continue;
 		}
-		volumedB += it->getVolume();
-		DRAIN_VERBOSE("append volume : '" << it->getName() << " vol=" << it->getVolume() << "dB");
+		volumedB += m_volumeList[iii]->getVolume();
+		DRAIN_VERBOSE("append volume : '" << m_volumeList[iii]->getName() << " vol=" << m_volumeList[iii]->getVolume() << "dB");
 	}
 	DRAIN_DEBUG(" Total volume : " << volumedB << "dB nbVolume=" << m_volumeList.size());
-	#if (defined(__TARGET_OS__MacOs) || defined(__TARGET_OS__IOs))
+	#if (defined(__TARGET_OS__MacOs) || defined(__TARGET_OS__IOs) || __cplusplus < 201103L)
 		m_volumeAppli = pow(10.0f, volumedB/20.0f);
 	#else
 		m_volumeAppli = std::pow(10.0f, volumedB/20.0f);
@@ -304,7 +304,7 @@ std::vector<audio::format> drain::Volume::getFormatSupportedOutput() {
 };
 
 
-bool drain::Volume::process(std::chrono::system_clock::time_point& _time,
+bool drain::Volume::process(std11::chrono::system_clock::time_point& _time,
                                void* _input,
                                size_t _inputNbChunk,
                                void*& _output,
@@ -334,19 +334,19 @@ bool drain::Volume::process(std::chrono::system_clock::time_point& _time,
 	return true;
 }
 
-void drain::Volume::addVolumeStage(const std::shared_ptr<VolumeElement>& _volume) {
+void drain::Volume::addVolumeStage(const std11::shared_ptr<VolumeElement>& _volume) {
 	if (_volume == nullptr) {
 		return;
 	}
-	for (auto &it : m_volumeList) {
-		if (it == nullptr) {
+	for (size_t iii=0; iii<m_volumeList.size(); ++iii) {
+		if (m_volumeList[iii] == nullptr) {
 			continue;
 		}
-		if (it == _volume) {
+		if (m_volumeList[iii] == _volume) {
 			// already done ...
 			return;
 		}
-		if (it->getName() == _volume->getName()) {
+		if (m_volumeList[iii]->getName() == _volume->getName()) {
 			return;
 		}
 	}
@@ -357,11 +357,11 @@ void drain::Volume::addVolumeStage(const std::shared_ptr<VolumeElement>& _volume
 bool drain::Volume::setParameter(const std::string& _parameter, const std::string& _value) {
 	if (_parameter == "FLOW") {
 		// set Volume ...
-		for (auto &it : m_volumeList) {
-			if (it == nullptr) {
+		for (size_t iii=0; iii<m_volumeList.size(); ++iii) {
+			if (m_volumeList[iii] == nullptr) {
 				continue;
 			}
-			if (it->getName() == "FLOW") {
+			if (m_volumeList[iii]->getName() == "FLOW") {
 				float value = 0;
 				if (sscanf(_value.c_str(), "%fdB", &value) != 1) {
 					return false;
@@ -371,7 +371,7 @@ bool drain::Volume::setParameter(const std::string& _parameter, const std::strin
 					DRAIN_ERROR("Can not set volume ... : '" << _parameter << "' out of range : [-300..300]");
 					return false;
 				}
-				it->setVolume(value);
+				m_volumeList[iii]->setVolume(value);
 				DRAIN_DEBUG("Set volume : FLOW = " << value << " dB (from:" << _value << ")");
 				volumeChange();
 				return true;
@@ -385,12 +385,12 @@ bool drain::Volume::setParameter(const std::string& _parameter, const std::strin
 std::string drain::Volume::getParameter(const std::string& _parameter) const {
 	if (_parameter == "FLOW") {
 		// set Volume ...
-		for (auto &it : m_volumeList) {
-			if (it == nullptr) {
+		for (size_t iii=0; iii<m_volumeList.size(); ++iii) {
+			if (m_volumeList[iii] == nullptr) {
 				continue;
 			}
-			if (it->getName() == "FLOW") {
-				return std::to_string(it->getVolume()) + "dB";
+			if (m_volumeList[iii]->getName() == "FLOW") {
+				return etk::to_string(m_volumeList[iii]->getVolume()) + "dB";
 			}
 		}
 	}
@@ -401,11 +401,11 @@ std::string drain::Volume::getParameter(const std::string& _parameter) const {
 std::string drain::Volume::getParameterProperty(const std::string& _parameter) const {
 	if (_parameter == "FLOW") {
 		// set Volume ...
-		for (auto &it : m_volumeList) {
-			if (it == nullptr) {
+		for (size_t iii=0; iii<m_volumeList.size(); ++iii) {
+			if (m_volumeList[iii] == nullptr) {
 				continue;
 			}
-			if (it->getName() == "FLOW") {
+			if (m_volumeList[iii]->getName() == "FLOW") {
 				return "[-300..300]dB";
 			}
 		}
diff --git a/drain/Volume.h b/drain/Volume.h
index 95d63b7..f252dd3 100644
--- a/drain/Volume.h
+++ b/drain/Volume.h
@@ -11,7 +11,11 @@
 #ifdef HAVE_SPEEX_DSP_RESAMPLE
 	#include <speex/speex_resampler.h>
 #endif
-#include <memory>
+#if __cplusplus >= 201103L
+	#include <memory>
+#else
+	#include <etk/memory.h>
+#endif
 
 namespace drain {
 	// data structure.
@@ -45,7 +49,7 @@ namespace drain {
 	// TODO: Manage set volume
 	class Volume : public Algo {
 		private:
-			std::vector<std::shared_ptr<drain::VolumeElement>> m_volumeList;
+			std::vector<std11::shared_ptr<drain::VolumeElement> > m_volumeList;
 			// for float input :
 			float m_volumeAppli;
 			// for integer input :
@@ -60,7 +64,7 @@ namespace drain {
 			Volume();
 			void init();
 		public:
-			static std::shared_ptr<Volume> create();
+			static std11::shared_ptr<Volume> create();
 			/**
 			 * @brief Destructor
 			 */
@@ -68,7 +72,7 @@ namespace drain {
 		protected:
 			virtual void configurationChange();
 		public:
-			virtual bool process(std::chrono::system_clock::time_point& _time,
+			virtual bool process(std11::chrono::system_clock::time_point& _time,
 			                     void* _input,
 			                     size_t _inputNbChunk,
 			                     void*& _output,
@@ -77,7 +81,7 @@ namespace drain {
 			virtual std::vector<audio::format> getFormatSupportedInput();
 			virtual std::vector<audio::format> getFormatSupportedOutput();
 		public:
-			virtual void addVolumeStage(const std::shared_ptr<drain::VolumeElement>& _volume);
+			virtual void addVolumeStage(const std11::shared_ptr<drain::VolumeElement>& _volume);
 			virtual bool setParameter(const std::string& _parameter, const std::string& _value);
 			virtual std::string getParameter(const std::string& _parameter) const;
 			virtual std::string getParameterProperty(const std::string& _parameter) const;
diff --git a/drain/airtalgo.h b/drain/airtalgo.h
index 9de8f88..20b1dae 100644
--- a/drain/airtalgo.h
+++ b/drain/airtalgo.h
@@ -10,7 +10,11 @@
 #include <string>
 #include <audio/format.h>
 #include <drain/channel.h>
-#include <chrono>
+#if __cplusplus >= 201103L
+	#include <chrono>
+#else
+	#include <etk/chrono.h>
+#endif
 
 namespace drain {
 	/**