diff --git a/sp/src/game/shared/baseentity_shared.cpp b/sp/src/game/shared/baseentity_shared.cpp
index 6b802a25..cd3854dd 100644
--- a/sp/src/game/shared/baseentity_shared.cpp
+++ b/sp/src/game/shared/baseentity_shared.cpp
@@ -2393,8 +2393,67 @@ void CBaseEntity::ModifyEmitSoundParams( EmitSound_t &params )
 		params.m_pSoundName = GameRules()->TranslateEffectForVisionFilter( "sounds", params.m_pSoundName );
 	}
 #endif
+
+#ifdef MAPBASE_VSCRIPT
+	if (m_ScriptScope.IsInitialized() && g_Hook_ModifyEmitSoundParams.CanRunInScope( m_ScriptScope ))
+	{
+		HSCRIPT hParams = g_pScriptVM->RegisterInstance( reinterpret_cast<ScriptEmitSound_t*>(&params) );
+
+		// params
+		ScriptVariant_t functionReturn;
+		ScriptVariant_t args[] = { ScriptVariant_t( hParams ) };
+		g_Hook_ModifyEmitSoundParams.Call( m_ScriptScope, &functionReturn, args );
+
+		g_pScriptVM->RemoveInstance( hParams );
+	}
+#endif
 }
 
+#if defined(MAPBASE) && defined(GAME_DLL)
+void CBaseEntity::ModifySentenceParams( int &iSentenceIndex, int &iChannel, float &flVolume, soundlevel_t &iSoundlevel, int &iFlags, int &iPitch,
+	const Vector **pOrigin, const Vector **pDirection, bool &bUpdatePositions, float &soundtime, int &iSpecialDSP, int &iSpeakerIndex )
+{
+#ifdef MAPBASE_VSCRIPT
+	if (m_ScriptScope.IsInitialized() && g_Hook_ModifySentenceParams.CanRunInScope( m_ScriptScope ))
+	{
+		// This is a bit of a hack, but for consistency with ModifyEmitSoundParams, put them into an EmitSound_t params
+		ScriptEmitSound_t params;
+		params.m_pSoundName = engine->SentenceNameFromIndex( iSentenceIndex );
+		params.m_nChannel = iChannel;
+		params.m_flVolume = flVolume;
+		params.m_SoundLevel = iSoundlevel;
+		params.m_nFlags = iFlags;
+		params.m_nPitch = iPitch;
+		params.m_pOrigin = *pOrigin;
+		params.m_flSoundTime = soundtime;
+		params.m_nSpecialDSP = iSpecialDSP;
+		params.m_nSpeakerEntity = iSpeakerIndex;
+
+		HSCRIPT hParams = g_pScriptVM->RegisterInstance( &params );
+
+		// params
+		ScriptVariant_t functionReturn;
+		ScriptVariant_t args[] = { ScriptVariant_t( hParams ) };
+		if (g_Hook_ModifySentenceParams.Call( m_ScriptScope, &functionReturn, args ))
+		{
+			iSentenceIndex = engine->SentenceIndexFromName( params.m_pSoundName );
+			iChannel = params.m_nChannel;
+			flVolume = params.m_flVolume;
+			iSoundlevel = params.m_SoundLevel;
+			iFlags = params.m_nFlags;
+			iPitch = params.m_nPitch;
+			*pOrigin = params.m_pOrigin;
+			soundtime = params.m_flSoundTime;
+			iSpecialDSP = params.m_nSpecialDSP;
+			iSpeakerIndex = params.m_nSpeakerEntity;
+		}
+
+		g_pScriptVM->RemoveInstance( hParams );
+	}
+#endif
+}
+#endif
+
 //-----------------------------------------------------------------------------
 // These methods encapsulate MOVETYPE_FOLLOW, which became obsolete
 //-----------------------------------------------------------------------------