diff --git a/Sources/libewol/ewol/Audio/audio.cpp b/Sources/libewol/ewol/Audio/audio.cpp
new file mode 100644
index 00000000..c53996dd
--- /dev/null
+++ b/Sources/libewol/ewol/Audio/audio.cpp
@@ -0,0 +1,224 @@
+/**
+ *******************************************************************************
+ * @file ewol/Audio/audio.c
+ * @brief basic ewol Audio interface (Sources)
+ * @author Edouard DUPIN
+ * @date 02/05/2012
+ * @par Project
+ * ewol
+ *
+ * @par Copyright
+ * Copyright 2011 Edouard DUPIN, all right reserved
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY.
+ *
+ * Licence summary : 
+ *    You can modify and redistribute the sources code and binaries.
+ *    You can send me the bug-fix
+ *
+ * Term of the licence in in the file licence.txt.
+ *
+ *******************************************************************************
+ */
+
+#include <etk/Types.h>
+#include <ewol/Audo/audio.h>
+
+static bool    musicMute = true;
+static float   musicVolume = -5000;
+static int32_t musicFadingTime = 0;
+
+static bool    effectsMute = true;
+static float   effectsVolume = -5000;
+
+static bool isInit = false;
+
+
+void ewol::audio::Init(void)
+{
+	if (isInit == true) {
+		EWOL_ERROR("multiple init requested ... at the audio system ...");
+	}
+	musicMute = false;
+	musicVolume = 0;
+	effectsMute = false;
+	effectsVolume = 0;
+	musicFadingTime = 100;
+	isInit = true;
+}
+
+
+void ewol::audio::UnInit(void)
+{
+	if (false == isInit) {
+		EWOL_ERROR("multiple un-init requested ... at the audio system ...");
+	}
+	musicMute = true;
+	musicVolume = -5000;
+	effectsMute = true;
+	effectsVolume = -5000;
+	musicFadingTime = 0;
+}
+
+
+void ewol::audio::music::Fading(int32_t timeMs)
+{
+	musicFadingTime = timeMs;
+	musicFadingTime = etk_avg(-100, musicFadingTime, 20);
+	EWOL_INFO("Set music fading time at " << timeMs << "ms ==> " << musicFadingTime << "ms");
+}
+
+
+erreurCode_te ewol::audio::music::ListAdd(etk::UString file)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListRm(etk::UString file)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListClean(void)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListPrevious(void)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListNext(void)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListFirst(void)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListLast(void)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListLast(void)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListPlay(void)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::ListStop(void)
+{
+	return ERR_FAIL;
+}
+
+
+
+
+erreurCode_te ewol::audio::music::Play(etk::UString file)
+{
+	return ERR_FAIL;
+}
+
+
+erreurCode_te ewol::audio::music::Stop(void)
+{
+	return ERR_FAIL;
+}
+
+
+
+float ewol::audio::music::VolumeGet(void)
+{
+	return musicVolume;
+}
+
+
+void ewol::audio::music::(float newVolume)
+{
+	musicVolume = newVolume;
+	musicVolume = etk_avg(-100, musicVolume, 20);
+	EWOL_INFO("Set music Volume at " << newVolume << "dB ==> " << musicVolume << "dB");
+}
+
+
+bool ewol::audio::music::MuteGet(void)
+{
+	return musicMute;
+}
+
+
+void ewol::audio::music::MuteSet(bool newMute)
+{
+	musicMute = newMute;
+	EWOL_INFO("Set music Mute at " << newMute);
+}
+
+
+
+
+
+int32_t ewol::audio::effects::Add(etk::UString file)
+{
+	return -1;
+}
+
+
+void ewol::audio::effects::Rm(int32_t effectId)
+{
+	
+}
+
+
+void ewol::audio::effects::Play(int32_t effectId, etkFloat_t xxx, etkFloat_t yyy)
+{
+	
+}
+
+
+float ewol::audio::effects::VolumeGet(void)
+{
+	return effectsVolume;
+}
+
+
+void ewol::audio::effects::VolumeSet(float newVolume)
+{
+	effectsVolume = effectsVolume;
+	effectsVolume = etk_avg(-100, effectsVolume, 20);
+	EWOL_INFO("Set music Volume at " << newVolume << "dB ==> " << effectsVolume << "dB");
+}
+
+
+bool ewol::audio::effects::MuteGet(void)
+{
+	return effectsMute;
+}
+
+
+void ewol::audio::effects::MuteSet(bool newMute)
+{
+	effectsMute = newMute;
+	EWOL_INFO("Set effects Mute at " << newMute);
+}
+
+
+
+
diff --git a/Sources/libewol/ewol/Audio/Audio.h b/Sources/libewol/ewol/Audio/audio.h
similarity index 98%
rename from Sources/libewol/ewol/Audio/Audio.h
rename to Sources/libewol/ewol/Audio/audio.h
index 9eccaa1d..b9b688d1 100644
--- a/Sources/libewol/ewol/Audio/Audio.h
+++ b/Sources/libewol/ewol/Audio/audio.h
@@ -1,6 +1,6 @@
 /**
  *******************************************************************************
- * @file ewol/Audio.h
+ * @file ewol/Audio/audio.h
  * @brief basic ewol Audio interface (header)
  * @author Edouard DUPIN
  * @date 02/05/2012