diff --git a/code/nel/include/nel/sound/clustered_sound.h b/code/nel/include/nel/sound/clustered_sound.h
index 4de54a3b8..4e488dcc6 100644
--- a/code/nel/include/nel/sound/clustered_sound.h
+++ b/code/nel/include/nel/sound/clustered_sound.h
@@ -253,8 +253,8 @@ private:
 	/// The current cluster playing source indexed with sound group id
 	TClusterSoundCont		_Sources;
 
-	//typedef CHashMap<NLMISC::CSheetId, NLMISC::CSheetId, NLMISC::CSheetIdHashMapTraits> TStringStringMap;
-	typedef CHashMap<NLMISC::TStringId, NLMISC::TStringId, NLMISC::CStringIdHashMapTraits> TStringStringMap;
+	typedef CHashMap<NLMISC::CSheetId, NLMISC::CSheetId, NLMISC::CSheetIdHashMapTraits> TStringStringMap;
+	//typedef CHashMap<NLMISC::TStringId, NLMISC::TStringId, NLMISC::CStringIdHashMapTraits> TStringStringMap;
 	/// The sound_group to sound assoc
 	TStringStringMap	_SoundGroupToSound;
 };
diff --git a/code/nel/src/sound/audio_mixer_user.cpp b/code/nel/src/sound/audio_mixer_user.cpp
index 4563ac039..b1f10cbe6 100644
--- a/code/nel/src/sound/audio_mixer_user.cpp
+++ b/code/nel/src/sound/audio_mixer_user.cpp
@@ -1895,7 +1895,7 @@ retrySound:
 
 			if (invalid)
 			{
-				nlwarning("The sound %s contain an infinite recursion !", id->getName().toString()/*CStringMapper::unmap(id->getName()).c_str()*/);
+				nlwarning("The sound %s contain an infinite recursion !", id->getName().toString().c_str()/*CStringMapper::unmap(id->getName()).c_str()*/);
 				return NULL;
 			}
 
diff --git a/code/nel/src/sound/clustered_sound.cpp b/code/nel/src/sound/clustered_sound.cpp
index a64e24af4..d860e53d4 100644
--- a/code/nel/src/sound/clustered_sound.cpp
+++ b/code/nel/src/sound/clustered_sound.cpp
@@ -70,7 +70,7 @@ float EAX_MATERIAL_PARAM[] =
 class CSoundGroupSerializer
 {
 public:
-	std::vector<std::pair<NLMISC::TStringId, NLMISC::TStringId> >	_SoundGroupAssoc;
+	std::vector<std::pair<NLMISC::CSheetId, NLMISC::CSheetId> >	_SoundGroupAssoc;
 
 	// load the values using the george sheet (called by GEORGE::loadForm)
 	void readGeorges (const NLMISC::CSmartPtr<NLGEORGES::UForm> &form, const std::string &/* name */)
@@ -103,7 +103,7 @@ public:
 					sound = sound.substr(0, n);
 				}
 
-				_SoundGroupAssoc.push_back(make_pair(CStringMapper::map(soundGroup), CStringMapper::map(sound)));
+				_SoundGroupAssoc.push_back(make_pair(CSheetId(soundGroup), CSheetId(sound) /*CStringMapper::map(soundGroup), CStringMapper::map(sound)*/));
 			}
 		}
 		catch(...)
@@ -131,15 +131,15 @@ public:
 				s.serial(soundGroup);
 				s.serial(sound);
 
-				_SoundGroupAssoc.push_back(make_pair(CStringMapper::map(soundGroup), CStringMapper::map(sound)));
+				_SoundGroupAssoc.push_back(make_pair(CSheetId(soundGroup), CSheetId(sound) /*CStringMapper::map(soundGroup), CStringMapper::map(sound)*/));
 			}
 			else
 			{
 				std::string soundGroup;
 				std::string sound;
 
-				soundGroup = CStringMapper::unmap(_SoundGroupAssoc[i].first);
-				sound = CStringMapper::unmap(_SoundGroupAssoc[i].second);
+				soundGroup = _SoundGroupAssoc[i].first.toString();// CStringMapper::unmap(_SoundGroupAssoc[i].first);
+				sound = _SoundGroupAssoc[i].second.toString(); //CStringMapper::unmap(_SoundGroupAssoc[i].second);
 
 				s.serial(soundGroup);
 				s.serial(sound);
@@ -292,7 +292,7 @@ void CClusteredSound::update(const CVector &listenerPos, const CVector &/* view
 				TStringStringMap::iterator it2(_SoundGroupToSound.find(soundGroup));
 				if (it2 != _SoundGroupToSound.end())
 				{
-					NLMISC::TStringId soundName = it2->second;
+					NLMISC::CSheetId soundName = it2->second;
 					CClusterSound cs;
 
 //					nldebug("Found the sound [%s] for sound group [%s]", CStringMapper::unmap(soundName).c_str(), CStringMapper::unmap(soundGroup).c_str());
diff --git a/code/ryzom/client/src/connection.cpp b/code/ryzom/client/src/connection.cpp
index 32962cd93..75a87ce6b 100644
--- a/code/ryzom/client/src/connection.cpp
+++ b/code/ryzom/client/src/connection.cpp
@@ -2006,7 +2006,8 @@ public:
 	virtual void execute (CCtrlBase * /* pCaller */, const string &Params)
 	{
 		string sName = getParam(Params, "name");
-		TStringId id = CStringMapper::map(sName);
+		//TStringId id = CStringMapper::map(sName);
+		CSheetId id = CSheetId(sName);
 		if (SoundMngr != NULL)
 			SoundMngr->spawnSource(id,CVector(0,0,0));
 	}