diff --git a/audio/algo/river/Lms.cpp b/audio/algo/river/Lms.cpp
index a17bae5..bad623f 100644
--- a/audio/algo/river/Lms.cpp
+++ b/audio/algo/river/Lms.cpp
@@ -128,7 +128,7 @@ namespace audio {
 						return out;
 					}
 					
-					void setFilterTime(std::chrono::microseconds _time) {
+					void setFilterTime(echrono::microseconds _time) {
 						setFilterSize((m_sampleRate*_time.count())/1000000LL);
 					}
 					
@@ -193,7 +193,7 @@ void audio::algo::river::Lms::process(void* _output, const void* _input, const v
 }
 
 
-void audio::algo::river::Lms::setFilterTime(std::chrono::microseconds _time) {
+void audio::algo::river::Lms::setFilterTime(echrono::microseconds _time) {
 	if (m_private == nullptr) {
 		AA_RIVER_ERROR("Algo is not initialized...");
 	}
diff --git a/audio/algo/river/Lms.hpp b/audio/algo/river/Lms.hpp
index bcf0d84..3d03768 100644
--- a/audio/algo/river/Lms.hpp
+++ b/audio/algo/river/Lms.hpp
@@ -7,7 +7,7 @@
 #pragma once
 
 #include <etk/types.hpp>
-#include <chrono>
+#include <echrono/Steady.hpp>
 #include <audio/format.hpp>
 #include <ememory/memory.hpp>
 
@@ -115,7 +115,7 @@ namespace audio {
 					 * @brief Set filter size with specifing the filter temporal size and his samplerate
 					 * @param[in] _time Time of the filter size
 					 */
-					virtual void setFilterTime(std::chrono::microseconds _time);
+					virtual void setFilterTime(echrono::microseconds _time);
 					/**
 					 * @brief Set filter size in number of sample
 					 * @param[in] _nbSample Sample size of the filter
diff --git a/audio/algo/river/Nlms.cpp b/audio/algo/river/Nlms.cpp
index 64a2d65..2e0fa09 100644
--- a/audio/algo/river/Nlms.cpp
+++ b/audio/algo/river/Nlms.cpp
@@ -139,7 +139,7 @@ namespace audio {
 						return out;
 					}
 					
-					void setFilterTime(std::chrono::microseconds _time) {
+					void setFilterTime(echrono::microseconds _time) {
 						setFilterSize((m_sampleRate*_time.count())/1000000LL);
 					}
 					
@@ -204,7 +204,7 @@ void audio::algo::river::Nlms::process(void* _output, const void* _input, const
 }
 
 
-void audio::algo::river::Nlms::setFilterTime(std::chrono::microseconds _time) {
+void audio::algo::river::Nlms::setFilterTime(echrono::microseconds _time) {
 	if (m_private == nullptr) {
 		AA_RIVER_ERROR("Algo is not initialized...");
 	}
diff --git a/audio/algo/river/Nlms.hpp b/audio/algo/river/Nlms.hpp
index 1302aa3..75b07b9 100644
--- a/audio/algo/river/Nlms.hpp
+++ b/audio/algo/river/Nlms.hpp
@@ -7,7 +7,7 @@
 #pragma once
 
 #include <etk/types.hpp>
-#include <chrono>
+#include <echrono/Steady.hpp>
 #include <audio/format.hpp>
 #include <ememory/memory.hpp>
 
@@ -115,7 +115,7 @@ namespace audio {
 					 * @brief Set filter size with specifing the filter temporal size and his samplerate
 					 * @param[in] _time Time of the filter size
 					 */
-					virtual void setFilterTime(std::chrono::microseconds _time);
+					virtual void setFilterTime(echrono::microseconds _time);
 					/**
 					 * @brief Set filter size in number of sample
 					 * @param[in] _nbSample Sample size of the filter
diff --git a/audio/algo/river/Suppressor.cpp b/audio/algo/river/Suppressor.cpp
index a62cfb4..9c79d7c 100644
--- a/audio/algo/river/Suppressor.cpp
+++ b/audio/algo/river/Suppressor.cpp
@@ -88,14 +88,14 @@ namespace audio {
 					 * @brief Set the algo attaque time.
 					 * @param[in] _time Time of the attaque gain.
 					 */
-					virtual void setAttaqueTime(std::chrono::microseconds _time) {
+					virtual void setAttaqueTime(echrono::microseconds _time) {
 						m_attaqueStep = 1.0 / float(int64_t(m_sampleRate) * 1000000LL / _time.count());
 					}
 					/**
 					 * @brief Set the algo release time.
 					 * @param[in] _time Time of the release gain.
 					 */
-					virtual void setReleaseTime(std::chrono::microseconds _time) {
+					virtual void setReleaseTime(echrono::microseconds _time) {
 						m_releaseStep = 1.0 / float(int64_t(m_sampleRate) * 1000000LL / _time.count());
 					}
 					/**
@@ -103,20 +103,20 @@ namespace audio {
 					 * @param[in] _gain dB gain to apply for minimum.
 					 */
 					virtual void setMinimumGain(float _gain) {
-						m_minGain = std::pow(10.0f, _gain/20.0f);
+						m_minGain = etk::pow(10.0f, _gain/20.0f);
 					}
 					/**
 					 * @brief Set the threashold Gain.
 					 * @param[in] _gain dB gain to start removing data.
 					 */
 					virtual void setThreshold(float _gain) {
-						m_threashold = std::pow(10.0f, _gain/20.0f);
+						m_threashold = etk::pow(10.0f, _gain/20.0f);
 					}
 					/**
 					 * @brief Set the delay befor releasing time.
 					 * @param[in] _time Time of the dalay release.
 					 */
-					virtual void setReleaseDelay(std::chrono::microseconds _time) {
+					virtual void setReleaseDelay(echrono::microseconds _time) {
 						m_nbSampleDelay = int64_t(m_sampleRate) * 1000000LL / _time.count();
 					}
 			};
@@ -165,14 +165,14 @@ void audio::algo::river::Supressor::process(void* _output, const void* _input, c
 }
 
 
-void audio::algo::river::Supressor::setAttaqueTime(std::chrono::microseconds _time) {
+void audio::algo::river::Supressor::setAttaqueTime(echrono::microseconds _time) {
 	if (m_private == nullptr) {
 		AA_RIVER_ERROR("Algo is not initialized...");
 	}
 	m_private->setAttaqueTime(_time);
 }
 
-void audio::algo::river::Supressor::setReleaseTime(std::chrono::microseconds _time) {
+void audio::algo::river::Supressor::setReleaseTime(echrono::microseconds _time) {
 	if (m_private == nullptr) {
 		AA_RIVER_ERROR("Algo is not initialized...");
 	}
@@ -193,7 +193,7 @@ void audio::algo::river::Supressor::setThreshold(float _gain) {
 	m_private->setThreshold(_gain);
 }
 
-void audio::algo::river::Supressor::setReleaseDelay(std::chrono::microseconds _time) {
+void audio::algo::river::Supressor::setReleaseDelay(echrono::microseconds _time) {
 	if (m_private == nullptr) {
 		AA_RIVER_ERROR("Algo is not initialized...");
 	}
diff --git a/audio/algo/river/Suppressor.hpp b/audio/algo/river/Suppressor.hpp
index b158be2..638c31a 100644
--- a/audio/algo/river/Suppressor.hpp
+++ b/audio/algo/river/Suppressor.hpp
@@ -7,7 +7,7 @@
 #pragma once
 
 #include <etk/types.hpp>
-#include <chrono>
+#include <echrono/Steady.hpp>
 #include <audio/format.hpp>
 #include <ememory/memory.hpp>
 
@@ -66,12 +66,12 @@ namespace audio {
 					 * @brief Set the algo attaque time.
 					 * @param[in] _time Time of the attaque gain.
 					 */
-					virtual void setAttaqueTime(std::chrono::microseconds _time);
+					virtual void setAttaqueTime(echrono::microseconds _time);
 					/**
 					 * @brief Set the algo release time.
 					 * @param[in] _time Time of the release gain.
 					 */
-					virtual void setReleaseTime(std::chrono::microseconds _time);
+					virtual void setReleaseTime(echrono::microseconds _time);
 					/**
 					 * @brief Set the minimum Gain.
 					 * @param[in] _gain dB gain to apply for minimum.
@@ -86,7 +86,7 @@ namespace audio {
 					 * @brief Set the delay befor releasing time.
 					 * @param[in] _time Time of the dalay release.
 					 */
-					virtual void setReleaseDelay(std::chrono::microseconds _time);
+					virtual void setReleaseDelay(echrono::microseconds _time);
 			};
 		}
 	}
diff --git a/test/main.cpp b/test/main.cpp
index 38c7c9c..a705190 100644
--- a/test/main.cpp
+++ b/test/main.cpp
@@ -9,7 +9,7 @@
 #include <audio/algo/river/Lms.hpp>
 #include <audio/algo/river/Nlms.hpp>
 #include <etk/os/FSNode.hpp>
-#include <chrono>
+#include <echrono/Steady.hpp>
 #include <ethread/tools.hpp>
 
 
@@ -17,11 +17,11 @@
 
 class Performance {
 	private:
-		std::chrono::steady_clock::time_point m_timeStart;
-		std::chrono::steady_clock::time_point m_timeStop;
-		std::chrono::nanoseconds m_totalTimeProcessing;
-		std::chrono::nanoseconds m_minProcessing;
-		std::chrono::nanoseconds m_maxProcessing;
+		echrono::Steady m_timeStart;
+		echrono::Steady m_timeStop;
+		echrono::nanoseconds m_totalTimeProcessing;
+		echrono::nanoseconds m_minProcessing;
+		echrono::nanoseconds m_maxProcessing;
 		int32_t m_totalIteration;
 	public:
 		Performance() :
@@ -32,11 +32,11 @@ class Performance {
 			
 		}
 		void tic() {
-			m_timeStart = std::chrono::steady_clock::now();
+			m_timeStart = echrono::Steady::now();
 		}
 		void toc() {
-			m_timeStop = std::chrono::steady_clock::now();
-			std::chrono::nanoseconds time = m_timeStop - m_timeStart;
+			m_timeStop = echrono::Steady::now();
+			echrono::nanoseconds time = m_timeStop - m_timeStart;
 			m_minProcessing = etk::min(m_minProcessing, time);
 			m_maxProcessing = etk::max(m_maxProcessing, time);
 			m_totalTimeProcessing += time;
@@ -44,13 +44,13 @@ class Performance {
 			
 		}
 		
-		std::chrono::nanoseconds getTotalTimeProcessing() {
+		echrono::nanoseconds getTotalTimeProcessing() {
 			return m_totalTimeProcessing;
 		}
-		std::chrono::nanoseconds getMinProcessing() {
+		echrono::nanoseconds getMinProcessing() {
 			return m_minProcessing;
 		}
-		std::chrono::nanoseconds getMaxProcessing() {
+		echrono::nanoseconds getMaxProcessing() {
 			return m_maxProcessing;
 		}
 		int32_t getTotalIteration() {