/sim/sound/audible is true.
// The repeating flag indicates whether the message should be repeated continuously or played once.
void FGATCMgr::Render(string msg, string refname, bool repeating) {
#ifdef ENABLE_AUDIO_SUPPORT
- voice = voiceOK && fgGetBool("/sim/sound/audible");
+ voice = (voiceOK && fgGetBool("/sim/sound/audible")
+ && fgGetBool("/sim/sound/voice"));
if(voice) {
int len;
unsigned char* buf = v1.WriteMessage((char*)msg.c_str(), len, voice);