+ static FGSampleQueue *queue = 0;
+ if ( !queue ) {
+ SGSoundMgr *smgr = globals->get_soundmgr();
+ queue = new FGSampleQueue(smgr, "chatter");
+ queue->tie_to_listener();
+ }
+
+ SGSoundSample *msg = new SGSoundSample(path.c_str(), file.c_str());
+ msg->set_volume( volume );
+ queue->add( msg );
+