#include "audioident.hxx"
#include <simgear/sg_inlines.h>
+#include <simgear/sound/sample_group.hxx>
#include <Main/globals.hxx>
-#include <Sound/Morse.hxx>
+#include <Sound/morse.hxx>
AudioIdent::AudioIdent( const std::string & fx_name, const double interval_secs, const int frequency_hz ) :
_fx_name(fx_name),
void AudioIdent::setIdent( const std::string & ident, double volumeNorm )
{
- if( _ident == ident ) {
+ // Signal may flicker very frequently (due to our realistic newnavradio...).
+ // Avoid recreating identical sound samples all the time, instead turn off
+ // volume when signal is lost, and save the most recent sample.
+ if (ident.empty())
+ volumeNorm = 0;
+
+ if(( _ident == ident )||
+ (volumeNorm == 0)) // don't bother with sounds when volume is OFF anyway...
+ {
if( false == _ident.empty() )
setVolumeNorm( volumeNorm );
return;
sound->set_volume( volumeNorm );
if (!_sgr->add( sound, _fx_name )) {
SG_LOG(SG_SOUND, SG_WARN, "Failed to add sound '" << _fx_name << "' for ident '" << ident << "'" );
+ delete sound;
return;
}
//FIXME: LOCAudioIdent at approx 7wpm (ICAO Annex 10 - 3.1.3.9.4)
// not less than six times per minute at approx equal intervals
// frequency 1020+/-50Hz (3.1.3.9.2)
+LOCAudioIdent::LOCAudioIdent( const std::string & fx_name )
+: AudioIdent( fx_name, 10, FGMorse::LO_FREQUENCY )
+{
+}
+
// FIXME: NDBAudioIdent at approx 7 wpm (ICAO ANNEX 10 - 3.4.5.1)
// at least once every 10s (3.4.5.2.1)
-// frequency 1020+/-50Hz or 400+/-25Hz (3.4.5.4)
\ No newline at end of file
+// frequency 1020+/-50Hz or 400+/-25Hz (3.4.5.4)