Curtis Olson wrote: > I've done some work on the sound system in main.cxx and have attached > a patch for folks to review if they want to look at what I did. > > I made a simplifying assumption that the listener is either stationary > (stationary enough) or it is tracking with the aircraft model position. > ... SNIP > Then I used my simplifying assumption to set the listener velocity > vector to (a) zero if the listener is stationary or (b) the model_vel > if the listener is moving. > > This seems to really help clean up the stall horn sound (and hopefully > the marker beacon sounds which suffered the same effect.) > > But at the same time, the doppler effects are maintained as they were. > Curt,
I am not sure this change is the cause, but there is now no doppler effect for yasim models that have non zero target-z-offset-m's for views 1 through 6. I noticed that the j3 cub, the pittss1c, and the yasim A6M2 all have doppler effects. They all also have no <view n="j"> </view> for j=1, 2, ... , 6. But the pa24-250, pa26-161, p51d, and bo105 have no doppler effect. They do have non zero target-z-offset-m in <view n="j"></view> for j=1, 2, ... , 6. I also noticed that if I change the target-z-offset to 0.0, the doppler effect returns but the center of the views is then not what the model author intended. Dave P. ------------------------------------------------------------------------- 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
