diff --git a/src/Sound/flitevoice.cxx b/src/Sound/flitevoice.cxx
index 9766293..96c08ea 100644
--- a/src/Sound/flitevoice.cxx
+++ b/src/Sound/flitevoice.cxx
@@ -23,6 +23,9 @@
 #  include "config.h"
 #endif
 
+#include <stdlib.h>
+
+
 #include "flitevoice.hxx"
 #include <Main/fg_props.hxx>
 #include <simgear/sound/sample_group.hxx>
@@ -64,7 +67,22 @@ void FGFLITEVoice::speak(const string & msg)
   // this is called from voice.cxx:FGVoiceMgr::FGVoiceThread::run
   string s = simgear::strutils::strip(msg);
   if (!s.empty()) {
-    _sampleQueue.push(_synthesizer->synthesize(msg, 1.0, 0.5, 0.5));
+
+    //zhonjin 
+    //_sampleQueue.push(_synthesizer->synthesize(msg, 1.0, 0.5, 0.5));
+    auto serverurl = fgGetString("/sim/sound/ttsurl");
+    if (!serverurl.empty() && fgGetBool("/sim/sound/voices/enabled",true)) {
+
+      SG_LOG(SG_SOUND, SG_INFO, "TTS Play '" << s << "'" );
+
+      string urlcmd = "ffplay -nodisp -autoexit -loglevel quiet -i ";
+      urlcmd.append("\"");
+      urlcmd.append(serverurl);
+      urlcmd.append("/speech/?str=");
+      urlcmd.append(msg);
+      urlcmd.append("\"");
+      system(urlcmd.c_str());
+    }
   }
 }