Maik Justus wrote: > no. The Doppler problems are due to OpenAL bugs and limitations. On most > systems (at least at all which are using Open AL software Doppler > calculation) I got strange effects. On Linux systems a workaround was to > use only the relative velocity of listener and sound, which is
Hm, that sounds bad indeed. But FlightGear code at this time doesn't lock listener orientation to viewer orientation. So in theory it could be you are looking in one direction but get the sounds as if you were looking in another direction. > physically not correct. But on windows even this approach results is > strange effects. There I use my own software implementation in simgear > and pass the calculated pitch and volume to Open AL. But Open AL clamps > the pitch factor (If I remember correctly to 0.5 ... 2), and That's correct for the Creative implementation, they introduced this for their hardware limitations although the specs doesn't say it should be clamped but it doesn't say it may not be clamped either. This is one such case where having a monopolist is a bad thing. > additionally many aircrafts modify the pitch by them self. This limits > the Doppler effect in Flightgear. Indeed. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
