diff --git a/lutin_audio_drain.py b/lutin_audio_drain.py
index fa4169c..0dce91b 100644
--- a/lutin_audio_drain.py
+++ b/lutin_audio_drain.py
@@ -1,7 +1,7 @@
 #!/usr/bin/python
-import lutinModule as module
-import lutinTools as tools
-import lutinDebug as debug
+import lutin.module as module
+import lutin.tools as tools
+import lutin.debug as debug
 
 def get_desc():
 	return "audio_drain : Basic audio algo interface single pipe to provess data"
@@ -30,7 +30,7 @@ def create(target):
 		])
 	
 	# TODO: myModule.add_optional_module_depend('speexdsp', "HAVE_SPEEX_DSP_RESAMPLE")
-	myModule.compile_flags_CC("-DHAVE_SPEEX_DSP_RESAMPLE")
+	myModule.compile_flags('c++', "-DHAVE_SPEEX_DSP_RESAMPLE")
 	myModule.add_module_depend(['etk', 'audio', 'ejson', 'speexdsp', 'audio_algo_drain'])
 	myModule.add_export_path(tools.get_current_path(__file__))
 	
diff --git a/lutin_audio_drain_test.py b/lutin_audio_drain_test.py
index 83c36f5..69863eb 100644
--- a/lutin_audio_drain_test.py
+++ b/lutin_audio_drain_test.py
@@ -1,7 +1,7 @@
 #!/usr/bin/python
-import lutinModule as module
-import lutinTools as tools
-import lutinDebug as debug
+import lutin.module as module
+import lutin.tools as tools
+import lutin.debug as debug
 
 def get_desc():
 	return "drain_test : single audio flow test"
diff --git a/tools/drainBiQuadProfiling/appl/Windows.cpp b/tools/drainBiQuadProfiling/appl/Windows.cpp
index ca5980f..bbfc298 100644
--- a/tools/drainBiQuadProfiling/appl/Windows.cpp
+++ b/tools/drainBiQuadProfiling/appl/Windows.cpp
@@ -13,13 +13,14 @@
 #include <ewol/widget/Entry.h>
 #include <ewol/widget/Button.h>
 #include <ewol/widget/Slider.h>
+#include <audio/drain/Equalizer.h>
 
 #undef __class__
 #define __class__ "Windows"
 
 appl::Windows::Windows() :
   m_sampleRate(48000),
-  m_type(drain::filterType::filterType_lowPass),
+  m_type(audio::algo::drain::biQuadType_lowPass),
   m_cutFrequency(8000.0),
   m_gain(0.0),
   m_quality(0.707) {
@@ -36,14 +37,14 @@ appl::Windows::Windows() :
 	m_listSampleRate.push_back(11025);
 	m_listSampleRate.push_back(8000);
 	m_listSampleRate.push_back(4000);
-	m_listType.push_back(drain::filterType_none);
-	m_listType.push_back(drain::filterType_lowPass);
-	m_listType.push_back(drain::filterType_highPass);
-	m_listType.push_back(drain::filterType_bandPass);
-	m_listType.push_back(drain::filterType_notch);
-	m_listType.push_back(drain::filterType_peak);
-	m_listType.push_back(drain::filterType_lowShelf);
-	m_listType.push_back(drain::filterType_highShelf);
+	m_listType.push_back(audio::algo::drain::biQuadType_none);
+	m_listType.push_back(audio::algo::drain::biQuadType_lowPass);
+	m_listType.push_back(audio::algo::drain::biQuadType_highPass);
+	m_listType.push_back(audio::algo::drain::biQuadType_bandPass);
+	m_listType.push_back(audio::algo::drain::biQuadType_notch);
+	m_listType.push_back(audio::algo::drain::biQuadType_peak);
+	m_listType.push_back(audio::algo::drain::biQuadType_lowShelf);
+	m_listType.push_back(audio::algo::drain::biQuadType_highShelf);
 }
 
 void appl::Windows::init() {
@@ -201,17 +202,20 @@ void appl::Windows::onCallbackFrequencySlider(const float& _value) {
 	onCallbackStart();
 }
 
-#include <river/debug.h>
+#include <audio/river/debug.h>
+#include <audio/algo/drain/BiQuad.h>
+#include <audio/float_t.h>
+#include <audio/int16_16_t.h>
 
 void appl::Windows::onCallbackStart() {
 	APPL_INFO("start ");
 	int32_t iii = 10;
 	std::vector<audio::channel> map;
 	map.push_back(audio::channel_frontCenter);
-	//drain::IOFormatInterface format(map, audio::format_int16, m_sampleRate);
-	drain::IOFormatInterface format(map, audio::format_float, m_sampleRate);
+	// audio::drain::IOFormatInterface format(map, audio::format_int16, m_sampleRate);
+	// audio::drain::IOFormatInterface format(map, audio::format_float, m_sampleRate);
 	// create biquad
-	drain::BiQuadFloat bq;
+	audio::algo::drain::BiQuad<audio::float_t> bq;
 	// configure parameter
 	bq.setBiquad(m_type, m_cutFrequency, m_quality, m_gain, m_sampleRate);
 	std::vector<std::pair<float,float> > theory = bq.calculateTheory(m_sampleRate);
@@ -223,7 +227,7 @@ void appl::Windows::onCallbackStart() {
 void appl::Windows::onCallbackStart16() {
 	APPL_INFO("start ");
 	// create biquad
-	drain::BiQuadFloat bq;
+	audio::algo::drain::BiQuad<audio::int16_16_t> bq;
 	// configure parameter
 	bq.setBiquad(m_type, m_cutFrequency, m_quality, m_gain, m_sampleRate);
 	std::vector<std::pair<float,float> > pratic;
@@ -235,7 +239,7 @@ void appl::Windows::onCallbackStart16() {
 		double m_phase = 0;
 		double baseCycle = 2.0*M_PI/double(m_sampleRate) * double(freq);
 		float gain = 0;
-		std::vector<int16_t> data;
+		std::vector<audio::int16_16_t> data;
 		// create sinus
 		data.resize(16000, 0);
 		for (int32_t iii=0; iii<data.size(); iii++) {
@@ -249,15 +253,14 @@ void appl::Windows::onCallbackStart16() {
 		int16_t* output = nullptr;
 		void* outputVoid = nullptr;
 		size_t outputNbChunk = 0;
-		std11::chrono::system_clock::time_point time;
 		RIVER_SAVE_FILE_MACRO(int16_t,"aaa_test_INPUT_16.raw",&data[0],data.size());
-		bq.processInt16(&data[0], &data[0], data.size(), 1, 1);
+		bq.process(&data[0], &data[0], data.size(), 1, 1);
 		RIVER_SAVE_FILE_MACRO(int16_t,"aaa_test_OUTPUT_16.raw",&data[0],data.size());
-		int16_t value = 0;
+		audio::int16_16_t value = 0;
 		for (size_t iii=800; iii<data.size()-200; ++iii) {
 			value = std::max(value, data[iii]);
 		}
-		gain = 20.0 * std::log10(double(value)/32000.0);
+		gain = 20.0 * std::log10(value.getDouble()/32000.0);
 		APPL_VERBOSE("LEVEL " << iii << " out = " << value << " % : " << gain);
 		pratic.push_back(std::make_pair<float, float>(float(freq),float(gain)));
 	}
@@ -267,7 +270,7 @@ void appl::Windows::onCallbackStart16() {
 void appl::Windows::onCallbackStartFloat() {
 	APPL_INFO("start ");
 	// create biquad
-	drain::BiQuadFloat bq;
+	audio::algo::drain::BiQuad<audio::float_t> bq;
 	// configure parameter
 	bq.setBiquad(m_type, m_cutFrequency, m_quality, m_gain, m_sampleRate);
 	std::vector<std::pair<float,float> > pratic;
@@ -279,7 +282,7 @@ void appl::Windows::onCallbackStartFloat() {
 		double m_phase = 0;
 		double baseCycle = 2.0*M_PI/double(m_sampleRate) * double(freq);
 		float gain = 0;
-		std::vector<float> data;
+		std::vector<audio::float_t> data;
 		// create sinus
 		data.resize(16000, 0);
 		for (int32_t iii=0; iii<data.size(); iii++) {
@@ -290,13 +293,13 @@ void appl::Windows::onCallbackStartFloat() {
 			}
 		}
 		RIVER_SAVE_FILE_MACRO(float,"aaa_test_INPUT_F.raw",&data[0],data.size());
-		bq.processFloat(&data[0], &data[0], data.size(), 1, 1);
+		bq.process(&data[0], &data[0], data.size(), 1, 1);
 		RIVER_SAVE_FILE_MACRO(float,"aaa_test_OUTPUT_F.raw",&data[0],data.size());
-		float value = 0.0f;
+		audio::float_t value = 0.0f;
 		for (size_t iii=800; iii<data.size()-200; ++iii) {
 			value = std::max(value, data[iii]);
 		}
-		gain = 20.0 * std::log10(double(value)/1.0);
+		gain = 20.0 * std::log10(value.getDouble()/1.0);
 		APPL_VERBOSE("LEVEL " << iii << " out = " << value << " % : " << gain);
 		pratic.push_back(std::make_pair<float, float>(float(freq),float(gain)));
 	}
diff --git a/tools/drainBiQuadProfiling/appl/Windows.h b/tools/drainBiQuadProfiling/appl/Windows.h
index ca3f173..6b38a65 100644
--- a/tools/drainBiQuadProfiling/appl/Windows.h
+++ b/tools/drainBiQuadProfiling/appl/Windows.h
@@ -12,7 +12,7 @@
 #include <ewol/widget/Windows.h>
 #include <ewol/widget/Layer.h>
 #include <ewol/widget/Composer.h>
-#include <drain/Equalizer.h>
+#include <audio/algo/drain/BiQuadType.h>
 #include <appl/widget/DisplayFrequency.h>
 
 namespace appl {
@@ -41,8 +41,8 @@ namespace appl {
 		protected:
 			int32_t m_sampleRate;
 			std::vector<int32_t> m_listSampleRate;
-			enum drain::filterType m_type;
-			std::vector<enum drain::filterType> m_listType;
+			enum audio::algo::drain::biQuadType m_type;
+			std::vector<enum audio::algo::drain::biQuadType> m_listType;
 			float m_cutFrequency;
 			float m_gain;
 			float m_quality;
diff --git a/tools/drainBiQuadProfiling/lutin_drain_biquad_profiling.py b/tools/drainBiQuadProfiling/lutin_drain_biquad_profiling.py
index 03d6566..1f27ece 100644
--- a/tools/drainBiQuadProfiling/lutin_drain_biquad_profiling.py
+++ b/tools/drainBiQuadProfiling/lutin_drain_biquad_profiling.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python
-import lutinModule as module
-import lutinTools as tools
+import lutin.module as module
+import lutin.tools as tools
 
 
 # optionnal : Describe in the "lutin.py --help"
@@ -17,9 +17,9 @@ def create(target):
 		'appl/widget/DisplayFrequency.cpp',
 		])
 	# add Library dependency name
-	myModule.add_module_depend(['ewol', 'drain', 'river'])
+	myModule.add_module_depend(['ewol', 'audio_drain', 'audio_river'])
 	# add application C flags
-	myModule.compile_flags_CC([
+	myModule.compile_flags('c++', [
 		"-DPROJECT_NAME=\"\\\""+myModule.name+"\\\"\""])
 	# Add current include Path
 	myModule.add_path(tools.get_current_path(__file__))
diff --git a/tools/drainEqualizerProfiling/appl/Windows.cpp b/tools/drainEqualizerProfiling/appl/Windows.cpp
index 6268545..6059b9b 100644
--- a/tools/drainEqualizerProfiling/appl/Windows.cpp
+++ b/tools/drainEqualizerProfiling/appl/Windows.cpp
@@ -108,14 +108,14 @@ void appl::Windows::onCallbackGain(const float& _value, int32_t _id) {
 }
 
 
-#include <river/debug.h>
+#include <audio/river/debug.h>
 
-std11::shared_ptr<drain::Equalizer> appl::Windows::createEqualizer(enum audio::format _format) {
+std11::shared_ptr<audio::drain::Equalizer> appl::Windows::createEqualizer(enum audio::format _format) {
 	std::vector<audio::channel> map;
 	map.push_back(audio::channel_frontCenter);
-	drain::IOFormatInterface format(map, _format, m_sampleRate);
+	audio::drain::IOFormatInterface format(map, _format, m_sampleRate);
 	// create equalizer
-	std11::shared_ptr<drain::Equalizer> out = drain::Equalizer::create();
+	std11::shared_ptr<audio::drain::Equalizer> out = audio::drain::Equalizer::create();
 	// configure input
 	out->setInputFormat(format);
 	// configure output
@@ -160,7 +160,7 @@ std11::shared_ptr<drain::Equalizer> appl::Windows::createEqualizer(enum audio::f
 
 void appl::Windows::onCallbackStart() {
 	APPL_INFO("start ");
-	std11::shared_ptr<drain::Equalizer> eq = appl::Windows::createEqualizer();
+	std11::shared_ptr<audio::drain::Equalizer> eq = appl::Windows::createEqualizer();
 	std::vector<std::pair<float,float> > theory = eq->calculateTheory();
 	m_displayer->clear();
 	m_displayer->setValue(theory);
@@ -169,7 +169,7 @@ void appl::Windows::onCallbackStart() {
 
 void appl::Windows::onCallbackStart16() {
 	APPL_INFO("start ");
-	std11::shared_ptr<drain::Equalizer> eq = appl::Windows::createEqualizer(audio::format_int16);
+	std11::shared_ptr<audio::drain::Equalizer> eq = appl::Windows::createEqualizer(audio::format_int16);
 	std::vector<std::pair<float,float> > pratic;
 	size_t len = 512;
 	std::vector<int16_t> data;
@@ -192,7 +192,7 @@ void appl::Windows::onCallbackStart16() {
 		int16_t* output = nullptr;
 		void* outputVoid = nullptr;
 		size_t outputNbChunk = 0;
-		std11::chrono::system_clock::time_point time;
+		audio::Time time;
 		RIVER_SAVE_FILE_MACRO(int16_t, "aaa_test_INPUT.raw", &data[0], data.size());
 		eq->process(time, &data[0], data.size(), outputVoid, outputNbChunk);
 		output = static_cast<int16_t*>(outputVoid);
@@ -210,7 +210,7 @@ void appl::Windows::onCallbackStart16() {
 
 void appl::Windows::onCallbackStartFloat() {
 	APPL_INFO("start ");
-	std11::shared_ptr<drain::Equalizer> eq = appl::Windows::createEqualizer(audio::format_float);
+	std11::shared_ptr<audio::drain::Equalizer> eq = appl::Windows::createEqualizer(audio::format_float);
 	std::vector<std::pair<float,float> > pratic;
 	size_t len = 512;
 	std::vector<float> data;
@@ -233,7 +233,7 @@ void appl::Windows::onCallbackStartFloat() {
 		float* output = nullptr;
 		void* outputVoid = nullptr;
 		size_t outputNbChunk = 0;
-		std11::chrono::system_clock::time_point time;
+		audio::Time time;
 		RIVER_SAVE_FILE_MACRO(int16_t,"aaa_test_INPUT_F.raw",&data[0],data.size());
 		eq->process(time, &data[0], data.size(), outputVoid, outputNbChunk);
 		output = static_cast<float*>(outputVoid);
diff --git a/tools/drainEqualizerProfiling/appl/Windows.h b/tools/drainEqualizerProfiling/appl/Windows.h
index 7eb1c86..0f544f6 100644
--- a/tools/drainEqualizerProfiling/appl/Windows.h
+++ b/tools/drainEqualizerProfiling/appl/Windows.h
@@ -12,7 +12,7 @@
 #include <ewol/widget/Windows.h>
 #include <ewol/widget/Layer.h>
 #include <ewol/widget/Composer.h>
-#include <drain/Equalizer.h>
+#include <audio/drain/Equalizer.h>
 #include <appl/widget/DisplayFrequency.h>
 
 namespace appl {
@@ -66,7 +66,7 @@ namespace appl {
 			std::vector<int32_t> m_listSampleRate;
 			
 			std::vector<float> m_listGain;
-			std11::shared_ptr<drain::Equalizer> createEqualizer(enum audio::format _format = audio::format_float);
+			std11::shared_ptr<audio::drain::Equalizer> createEqualizer(enum audio::format _format = audio::format_float);
 	};
 };
 
diff --git a/tools/drainEqualizerProfiling/lutin_drain_equalizer_profiling.py b/tools/drainEqualizerProfiling/lutin_drain_equalizer_profiling.py
index 4b6ffe8..93e5169 100644
--- a/tools/drainEqualizerProfiling/lutin_drain_equalizer_profiling.py
+++ b/tools/drainEqualizerProfiling/lutin_drain_equalizer_profiling.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python
-import lutinModule as module
-import lutinTools as tools
+import lutin.module as module
+import lutin.tools as tools
 
 
 # optionnal : Describe in the "lutin.py --help"
@@ -17,9 +17,9 @@ def create(target):
 		'appl/widget/DisplayFrequency.cpp',
 		])
 	# add Library dependency name
-	myModule.add_module_depend(['ewol', 'drain', 'river'])
+	myModule.add_module_depend(['ewol', 'audio_drain', 'audio_river'])
 	# add application C flags
-	myModule.compile_flags_CC([
+	myModule.compile_flags('c++', [
 		"-DPROJECT_NAME=\"\\\""+myModule.name+"\\\"\""])
 	# Add current include Path
 	myModule.add_path(tools.get_current_path(__file__))