diff --git a/audio/river/io/Group.cpp b/audio/river/io/Group.cpp
index 7f4c3da..0c1b127 100644
--- a/audio/river/io/Group.cpp
+++ b/audio/river/io/Group.cpp
@@ -27,7 +27,7 @@ void audio::river::io::Group::createFrom(const ejson::Document& _obj, const std:
 			RIVER_INFO("Add element in Group[" << _name << "]: " << _obj.getKey(iii));
 			// get type : io
 			std::string ioType = tmpObject->getStringValue("io", "error");
-			#ifdef __AIRTAUDIO_INFERFACE__
+			#ifdef AUDIO_RIVER_BUILD_ORCHESTRA
 				if (    ioType == "input"
 				     || ioType == "output") {
 					std11::shared_ptr<audio::river::io::Node> tmp = audio::river::io::NodeOrchestra::create(_obj.getKey(iii), tmpObject);
@@ -35,7 +35,7 @@ void audio::river::io::Group::createFrom(const ejson::Document& _obj, const std:
 					m_list.push_back(tmp);
 				}
 			#endif
-			#ifdef __PORTAUDIO_INFERFACE__
+			#ifdef AUDIO_RIVER_BUILD_PORTAUDIO
 				if (    ioType == "PAinput"
 				     || ioType == "PAoutput") {
 					std11::shared_ptr<audio::river::io::Node> tmp = audio::river::io::NodePortAudio::create(_obj.getKey(iii), tmpObject);
@@ -48,7 +48,7 @@ void audio::river::io::Group::createFrom(const ejson::Document& _obj, const std:
 	// Link all the IO together : (not needed if one device ...
 	// Note : The interlink work only for alsa (NOW) and with AirTAudio...
 	if(m_list.size() > 1) {
-		#ifdef __AIRTAUDIO_INFERFACE__
+		#ifdef AUDIO_RIVER_BUILD_ORCHESTRA
 			std11::shared_ptr<audio::river::io::NodeOrchestra> linkRef = std11::dynamic_pointer_cast<audio::river::io::NodeOrchestra>(m_list[0]);
 			for (size_t iii=1; iii<m_list.size(); ++iii) {
 				if (m_list[iii] != nullptr) {
diff --git a/audio/river/io/Manager.cpp b/audio/river/io/Manager.cpp
index be5027c..497925d 100644
--- a/audio/river/io/Manager.cpp
+++ b/audio/river/io/Manager.cpp
@@ -20,7 +20,7 @@
 #undef __class__
 #define __class__ "io::Manager"
 
-#ifdef __PORTAUDIO_INFERFACE__
+#ifdef AUDIO_RIVER_BUILD_PORTAUDIO
 	#include <portaudio.h>
 #endif
 
@@ -58,7 +58,7 @@ static std::string basicAutoConfig =
 
 
 audio::river::io::Manager::Manager() {
-	#ifdef __PORTAUDIO_INFERFACE__
+	#ifdef AUDIO_RIVER_BUILD_PORTAUDIO
 	PaError err = Pa_Initialize();
 	if(err != paNoError) {
 		RIVER_WARNING("Can not initialize portaudio : " << Pa_GetErrorText(err));
@@ -87,7 +87,7 @@ void audio::river::io::Manager::unInit() {
 }
 
 audio::river::io::Manager::~Manager() {
-	#ifdef __PORTAUDIO_INFERFACE__
+	#ifdef AUDIO_RIVER_BUILD_PORTAUDIO
 	PaError err = Pa_Terminate();
 	if(err != paNoError) {
 		RIVER_WARNING("Can not initialize portaudio : " << Pa_GetErrorText(err));
@@ -200,7 +200,7 @@ std11::shared_ptr<audio::river::io::Node> audio::river::io::Manager::getNode(con
 			}
 		}
 	}
-	RIVER_WARNING("Create a new one : " << _name);
+	RIVER_WARNING("Try create a new one : " << _name);
 	// check if the node can be open :
 	const std11::shared_ptr<const ejson::Object> tmpObject = m_config.getObject(_name);
 	if (tmpObject != nullptr) {
@@ -224,22 +224,27 @@ std11::shared_ptr<audio::river::io::Node> audio::river::io::Manager::getNode(con
 				RIVER_WARNING("Group is only availlable for Hardware interface ... '" << _name << "'");
 			}
 			// TODO : Create a standalone group for every single element ==> simplify understanding ... but not for virtual interface ...
-			#ifdef __AIRTAUDIO_INFERFACE__
+			
 			if (    ioType == "input"
 			     || ioType == "output") {
-				std11::shared_ptr<audio::river::io::Node> tmp = audio::river::io::NodeOrchestra::create(_name, tmpObject);
-				m_list.push_back(tmp);
-				return tmp;
+				#ifdef AUDIO_RIVER_BUILD_ORCHESTRA
+					std11::shared_ptr<audio::river::io::Node> tmp = audio::river::io::NodeOrchestra::create(_name, tmpObject);
+					m_list.push_back(tmp);
+					return tmp;
+				#else
+					RIVER_WARNING("not present interface");
+				#endif
 			}
-			#endif
-			#ifdef __PORTAUDIO_INFERFACE__
 			if (    ioType == "PAinput"
 			     || ioType == "PAoutput") {
-				std11::shared_ptr<audio::river::io::Node> tmp = audio::river::io::NodePortAudio::create(_name, tmpObject);
-				m_list.push_back(tmp);
-				return tmp;
+				#ifdef AUDIO_RIVER_BUILD_PORTAUDIO
+					std11::shared_ptr<audio::river::io::Node> tmp = audio::river::io::NodePortAudio::create(_name, tmpObject);
+					m_list.push_back(tmp);
+					return tmp;
+				#else
+					RIVER_WARNING("not present interface");
+				#endif
 			}
-			#endif
 			if (ioType == "aec") {
 				std11::shared_ptr<audio::river::io::Node> tmp = audio::river::io::NodeAEC::create(_name, tmpObject);
 				m_list.push_back(tmp);
diff --git a/audio/river/river.h b/audio/river/river.h
index a12aa2d..7e4524a 100644
--- a/audio/river/river.h
+++ b/audio/river/river.h
@@ -15,7 +15,7 @@ namespace audio {
 		 * @brief Initialize the River Library
 		 * @param[in] _filename Name of the configuration file (if "" ==> default config file)
 		 */
-		void init(const std::string& _filename);
+		void init(const std::string& _filename = "");
 		/**
 		 * @brief Initialize the River Library with a json data string
 		 * @param[in] _config json sting data