Hi James, the effect you are discussing is not the Doppler effect, but just the volume as a function of the distance. Every aircraft has its own sound definition including the distance, where the volume is halved (<reference-dist>) and the distance where the volume is cutted off (<max-dist>). The volume as a function of the distance is calculated by Openal. Therefore we need to know the aircraft, with wich you have the wrong effect and the kind of sound (most probably the engine sound?). If the sound configuration for this specific sound has reasonable definition for <reference-dist> we need to know your operating system and openal version. With this information other users can check, if they have the same problem. Maybe we can drill it down to a openal problem or maybe the distance passed to openal is wrong... Unfortunately I actually do not have a running flightgear; therefore I can not perform tests.
Maik James Sleeman schrieb am 21.01.2009 13:46: > The doppler effect (which I currently have working through the > USE_SOFTWARE_DOPPLER define) has never sounded very "real" to my ear. > Recently I've wondered if it might be to do with the "volume dropoff" > not being enough. > > It's hard to subjectively quantify the dropoff in the flyby, but for > example if we switch to tower view, it seems you can always hear the > aircraft no matter how far away you get, for example, I was 100 miles > from the tower and yet I had no trouble hearing the aircraft at all. > > Is the dropoff (if there is one at all, perhaps my mind is filling in > the blank and making one), configurable at all through some property, I > couldn't find one? It would be good to be able to play around with the > numbers and see if it makes an "improvement" to the subjective > convincingness of the doppler effect. > > --- > James Sleeman > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by: > SourcForge Community > SourceForge wants to tell your story. > http://p.sf.net/sfu/sf-spreadtheword > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel > > ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
